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Groups > linux.debian.kernel > #63872 > unrolled thread
| Started by | Yury Vidineev <adeptg@gmail.com> |
|---|---|
| First post | 2019-04-16 03:50 +0200 |
| Last post | 2020-12-23 11:40 +0100 |
| Articles | 4 — 2 participants |
Back to article view | Back to linux.debian.kernel
Bug#927184: linux-image-4.19.0-4-amd64: Linux 4.19 reports wrong numbers for NVME disks in /proc/diskstats Yury Vidineev <adeptg@gmail.com> - 2019-04-16 03:50 +0200
Bug#927184: SATA SSD affected as well Yury Vidineev <adeptg@gmail.com> - 2019-04-16 23:00 +0200
Bug#927184: Looks like RedHat/CentOS has a possible solution Yury Vidineev <adeptg@gmail.com> - 2019-06-18 00:40 +0200
Bug#927184: linux-image-4.19.0-4-amd64: Linux 4.19 reports wrong numbers for disks in /proc/diskstats jaroslav@thinline.cz - 2020-12-23 11:40 +0100
| From | Yury Vidineev <adeptg@gmail.com> |
|---|---|
| Date | 2019-04-16 03:50 +0200 |
| Subject | Bug#927184: linux-image-4.19.0-4-amd64: Linux 4.19 reports wrong numbers for NVME disks in /proc/diskstats |
| Message-ID | <xNlou-2Ss-3@gated-at.bofh.it> |
Package: src:linux Version: 4.19.28-2 Severity: normal Dear Maintainer, Looks like Linux 4.19 reports numbers in /proc/diskstats incorrectly what leds to incorrect %util in iostat output. On a NVME SSD with only few iops it can show more than 80% of utilisation. Example: Device r/s w/s rMB/s wMB/s rrqm/s wrqm/s %rrqm %wrqm r_await w_await aqu-sz rareq-sz wareq-sz svctm %util nvme1n1 0.00 3.27 0.00 0.24 0.00 1.83 0.00 35.95 0.00 3.14 0.86 0.00 75.94 262.47 85.74 I can clearly reproduce it on a lot of servers and on my laptop (with Ubuntu, linux 4.19). Few other links: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1790181 https://access.redhat.com/solutions/1462993 https://github.com/munin-monitoring/munin/issues/1119 -- Package-specific info: ** Version: Linux version 4.19.0-4-amd64 (debian-kernel@lists.debian.org) (gcc version 8.3.0 (Debian 8.3.0-2)) #1 SMP Debian 4.19.28-2 (2019-03-15) ** Command line: BOOT_IMAGE=/boot/vmlinuz-4.19.0-4-amd64 root=UUID=7bd61cce-a23c-4cec-a0b9-cb516cdf5d13 ro cgroup_enable=memory swapaccount=1 pti=off spectre_v2=off l1tf=off nospec_store_bypass_disable no_stf_barrier quiet ** Not tainted ** Kernel log: [ 3.299915] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready [ 3.880298] [drm] Initialized i915 1.6.0 20180719 for 0000:00:02.0 on minor 0 [ 3.881451] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no) [ 3.881617] input: Video Bus as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input7 [ 3.893124] [drm] Cannot find any crtc or sizes [ 3.925497] [drm] Cannot find any crtc or sizes [ 3.940198] [drm] Cannot find any crtc or sizes [ 6.150195] e1000e: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx [ 6.150270] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [ 108.619260] audit: type=1400 audit(1555373020.293:2): apparmor="STATUS" operation="profile_load" profile="unconfined" name="nvidia_modprobe" pid=2901 comm="apparmor_parser" [ 108.619372] audit: type=1400 audit(1555373020.293:3): apparmor="STATUS" operation="profile_load" profile="unconfined" name="nvidia_modprobe//kmod" pid=2901 comm="apparmor_parser" [ 108.865404] audit: type=1400 audit(1555373020.537:4): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="nvidia_modprobe" pid=2957 comm="apparmor_parser" [ 108.886756] audit: type=1400 audit(1555373020.561:5): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="nvidia_modprobe//kmod" pid=2957 comm="apparmor_parser" [ 119.200025] e1000e: eth0 NIC Link is Down [ 119.430347] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready [ 119.472281] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this. [ 119.482766] br1: port 1(eth0) entered blocking state [ 119.482769] br1: port 1(eth0) entered disabled state [ 119.482870] device eth0 entered promiscuous mode [ 119.489978] IPv6: ADDRCONF(NETDEV_UP): br1: link is not ready [ 123.294239] e1000e: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx [ 123.294316] br1: port 1(eth0) entered blocking state [ 123.294318] br1: port 1(eth0) entered forwarding state [ 123.294408] IPv6: ADDRCONF(NETDEV_CHANGE): br1: link becomes ready [ 140.110257] NET: Registered protocol family 15 [ 140.754187] alg: No test for authenc(hmac(md5),cbc(aes)) (authenc(hmac(md5-generic),cbc-aes-aesni)) [ 140.754340] alg: No test for echainiv(authenc(hmac(md5),cbc(aes))) (echainiv(authenc(hmac(md5-generic),cbc-aes-aesni))) [ 140.762641] alg: No test for fips(ansi_cprng) (fips_ansi_cprng) [ 142.433294] systemd-journald[306]: Received SIGTERM from PID 1 (systemd). [ 142.433295] systemd[1]: Stopping Journal Service... [ 142.434397] systemd[1]: systemd-journald.service: Succeeded. [ 142.434775] systemd[1]: Stopped Journal Service. [ 142.436589] systemd[1]: Starting Journal Service... [ 142.458615] systemd[1]: Started Journal Service. [ 279.160461] audit: type=1400 audit(1555373190.834:6): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/sbin/named" pid=7034 comm="apparmor_parser" [ 285.164990] audit: type=1400 audit(1555373196.838:7): apparmor="STATUS" operation="profile_load" profile="unconfined" name="lxc-container-default" pid=7309 comm="apparmor_parser" [ 285.165141] audit: type=1400 audit(1555373196.838:8): apparmor="STATUS" operation="profile_load" profile="unconfined" name="lxc-container-default-cgns" pid=7309 comm="apparmor_parser" [ 285.165260] audit: type=1400 audit(1555373196.838:9): apparmor="STATUS" operation="profile_load" profile="unconfined" name="lxc-container-default-with-mounting" pid=7309 comm="apparmor_parser" [ 285.165496] audit: type=1400 audit(1555373196.842:10): apparmor="STATUS" operation="profile_load" profile="unconfined" name="lxc-container-default-with-nesting" pid=7309 comm="apparmor_parser" [ 285.172899] audit: type=1400 audit(1555373196.846:11): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/bin/lxc-start" pid=7315 comm="apparmor_parser" [ 287.244149] audit: type=1400 audit(1555373198.918:12): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/sbin/ntpd" pid=7487 comm="apparmor_parser" [ 328.943056] audit: type=1400 audit(1555373240.608:13): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/sbin/tcpdump" pid=11730 comm="apparmor_parser" [ 350.873488] IPv6: ADDRCONF(NETDEV_UP): lxcbr0: link is not ready [ 351.355415] audit: type=1400 audit(1555373263.020:14): apparmor="STATUS" operation="profile_replace" info="same as current profile, skipping" profile="unconfined" name="/usr/bin/lxc-start" pid=16019 comm="apparmor_parser" [ 351.360950] audit: type=1400 audit(1555373263.028:15): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="lxc-container-default" pid=16023 comm="apparmor_parser" [ 351.360951] audit: type=1400 audit(1555373263.028:16): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="lxc-container-default-cgns" pid=16023 comm="apparmor_parser" [ 351.360952] audit: type=1400 audit(1555373263.028:17): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="lxc-container-default-with-mounting" pid=16023 comm="apparmor_parser" [ 351.360953] audit: type=1400 audit(1555373263.028:18): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="lxc-container-default-with-nesting" pid=16023 comm="apparmor_parser" [ 1192.230621] br0: port 1(veth35674) entered blocking state [ 1192.230621] br0: port 1(veth35674) entered disabled state [ 1192.230644] device veth35674 entered promiscuous mode [ 1192.230733] IPv6: ADDRCONF(NETDEV_UP): veth35674: link is not ready [ 1192.283015] eth0: renamed from vethSR00XB [ 1192.298358] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready [ 1192.298706] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [ 1192.298718] IPv6: ADDRCONF(NETDEV_CHANGE): veth35674: link becomes ready [ 1192.298729] br0: port 1(veth35674) entered blocking state [ 1192.298730] br0: port 1(veth35674) entered forwarding state [ 1192.435530] audit: type=1400 audit(1555374104.101:19): apparmor="DENIED" operation="mount" info="failed flags match" error=-13 profile="lxc-container-default-cgns" name="/sys/fs/pstore/" pid=4333 comm="mount" fstype="pstore" srcname="pstore" [ 1197.610744] br0: port 2(veth35675) entered blocking state [ 1197.610745] br0: port 2(veth35675) entered disabled state [ 1197.610768] device veth35675 entered promiscuous mode [ 1197.610813] IPv6: ADDRCONF(NETDEV_UP): veth35675: link is not ready [ 1197.683059] eth0: renamed from vethSI10HX [ 1197.734518] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready [ 1197.734921] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [ 1197.734935] IPv6: ADDRCONF(NETDEV_CHANGE): veth35675: link becomes ready [ 1197.734964] br0: port 2(veth35675) entered blocking state [ 1197.734965] br0: port 2(veth35675) entered forwarding state [ 1197.814617] audit: type=1400 audit(1555374109.481:20): apparmor="DENIED" operation="mount" info="failed flags match" error=-13 profile="lxc-container-default-cgns" name="/sys/fs/pstore/" pid=4990 comm="mount" fstype="pstore" srcname="pstore" [ 1198.093030] IPv6: ADDRCONF(NETDEV_UP): lxcbr0: link is not ready [ 1330.546334] br0: port 2(veth35675) entered disabled state [ 1330.547218] device veth35675 left promiscuous mode [ 1330.547218] br0: port 2(veth35675) entered disabled state [ 1334.618508] br0: port 1(veth35674) entered disabled state [ 1334.619350] device veth35674 left promiscuous mode [ 1334.619352] br0: port 1(veth35674) entered disabled state [ 1442.067236] br0: port 1(veth35674) entered blocking state [ 1442.067236] br0: port 1(veth35674) entered disabled state [ 1442.067258] device veth35674 entered promiscuous mode [ 1442.067304] IPv6: ADDRCONF(NETDEV_UP): veth35674: link is not ready [ 1442.131011] eth0: renamed from vethE1PSIL [ 1442.170502] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready [ 1442.171048] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [ 1442.171064] IPv6: ADDRCONF(NETDEV_CHANGE): veth35674: link becomes ready [ 1442.171077] br0: port 1(veth35674) entered blocking state [ 1442.171078] br0: port 1(veth35674) entered forwarding state [ 1442.299161] audit: type=1400 audit(1555374353.965:21): apparmor="DENIED" operation="mount" info="failed flags match" error=-13 profile="lxc-container-default-cgns" name="/sys/fs/pstore/" pid=12719 comm="mount" fstype="pstore" srcname="pstore" [ 1447.949301] br0: port 2(veth35675) entered blocking state [ 1447.949302] br0: port 2(veth35675) entered disabled state [ 1447.949324] device veth35675 entered promiscuous mode [ 1447.949397] IPv6: ADDRCONF(NETDEV_UP): veth35675: link is not ready [ 1448.018945] eth0: renamed from vethR7PEF4 [ 1448.058419] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready [ 1448.058931] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [ 1448.058947] IPv6: ADDRCONF(NETDEV_CHANGE): veth35675: link becomes ready [ 1448.058963] br0: port 2(veth35675) entered blocking state [ 1448.058963] br0: port 2(veth35675) entered forwarding state [ 1448.181346] audit: type=1400 audit(1555374359.845:22): apparmor="DENIED" operation="mount" info="failed flags match" error=-13 profile="lxc-container-default-cgns" name="/sys/fs/pstore/" pid=13391 comm="mount" fstype="pstore" srcname="pstore" [ 1448.416071] IPv6: ADDRCONF(NETDEV_UP): lxcbr0: link is not ready ** Model information sys_vendor: FUJITSU product_name: product_version: chassis_vendor: FUJITSU chassis_version: bios_vendor: FUJITSU // American Megatrends Inc. bios_version: V5.0.0.12 R1.19.0.SR.1 for D3401-H2x board_vendor: FUJITSU board_name: D3401-H2 board_version: S26361-D3401-H2 ** Loaded modules: veth nf_conntrack_netlink nft_chain_route_ipv4 xt_CHECKSUM ipt_MASQUERADE drbg ansi_cprng authenc echainiv esp4 xfrm4_mode_tunnel ctr twofish_generic twofish_avx_x86_64 twofish_x86_64_3way twofish_x86_64 twofish_common camellia_generic camellia_aesni_avx2 camellia_aesni_avx_x86_64 camellia_x86_64 serpent_avx2 serpent_avx_x86_64 serpent_sse2_x86_64 serpent_generic blowfish_generic blowfish_x86_64 blowfish_common cast5_avx_x86_64 cast5_generic cast_common des_generic cbc cmac xcbc rmd160 sha512_ssse3 sha512_generic af_key xfrm_algo xt_state xt_conntrack xt_recent xt_tcpudp xt_nat nft_compat nft_counter nft_chain_nat_ipv4 nf_nat_ipv4 nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nf_tables nfnetlink bridge stp llc intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel nls_ascii kvm nls_cp437 irqbypass vfat crct10dif_pclmul crc32_pclmul fat i915 mei_wdt evdev ghash_clmulni_intel intel_cstate drm_kms_helper intel_uncore serio_raw drm intel_rapl_perf mei_me wdat_wdt pcspkr mei i2c_algo_bit intel_pch_thermal wmi video acpi_pad button pcc_cpufreq ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 fscrypto ecb raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c crc32c_generic raid1 multipath linear raid0 md_mod crc32c_intel ahci libahci xhci_pci libata aesni_intel xhci_hcd aes_x86_64 e1000e crypto_simd cryptd usbcore glue_helper scsi_mod psmouse nvme nvme_core i2c_i801 usb_common ** PCI devices: 00:00.0 Host bridge [0600]: Intel Corporation Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers [8086:591f] (rev 05) Subsystem: Fujitsu Technology Solutions Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers [1734:121c] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR+ FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx- Latency: 0 Capabilities: [e0] Vendor Specific Information: Len=10 <?> Kernel driver in use: skl_uncore 00:02.0 VGA compatible controller [0300]: Intel Corporation HD Graphics 630 [8086:5912] (rev 04) (prog-if 00 [VGA controller]) Subsystem: Fujitsu Technology Solutions HD Graphics 630 [1734:121c] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 146 Region 0: Memory at ee000000 (64-bit, non-prefetchable) [size=16M] Region 2: Memory at d0000000 (64-bit, prefetchable) [size=256M] Region 4: I/O ports at f000 [size=64] [virtual] Expansion ROM at 000c0000 [disabled] [size=128K] Capabilities: [40] Vendor Specific Information: Len=0c <?> Capabilities: [70] Express (v2) Root Complex Integrated Endpoint, MSI 00 DevCap: MaxPayload 128 bytes, PhantFunc 0 ExtTag- RBE+ DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported- RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop- MaxPayload 128 bytes, MaxReadReq 128 bytes DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend- DevCap2: Completion Timeout: Not Supported, TimeoutDis-, LTR-, OBFF Not Supported DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled Capabilities: [ac] MSI: Enable+ Count=1/1 Maskable- 64bit- Address: fee00018 Data: 0000 Capabilities: [d0] Power Management version 2 Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- Capabilities: [100 v1] Process Address Space ID (PASID) PASIDCap: Exec- Priv-, Max PASID Width: 14 PASIDCtl: Enable- Exec- Priv- Capabilities: [200 v1] Address Translation Service (ATS) ATSCap: Invalidate Queue Depth: 00 ATSCtl: Enable-, Smallest Translation Unit: 00 Capabilities: [300 v1] Page Request Interface (PRI) PRICtl: Enable- Reset- PRISta: RF- UPRGI- Stopped+ Page Request Capacity: 00008000, Page Request Allocation: 00000000 Kernel driver in use: i915 Kernel modules: i915 00:14.0 USB controller [0c03]: Intel Corporation Sunrise Point-H USB 3.0 xHCI Controller [8086:a12f] (rev 31) (prog-if 30 [XHCI]) Subsystem: Fujitsu Technology Solutions 100 Series/C230 Series Chipset Family USB 3.0 xHCI Controller [1734:121d] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR+ FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 127 Region 0: Memory at ef220000 (64-bit, non-prefetchable) [size=64K] Capabilities: [70] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0-,D1-,D2-,D3hot+,D3cold+) Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME- Capabilities: [80] MSI: Enable+ Count=1/8 Maskable- 64bit+ Address: 00000000fee002b8 Data: 0000 Kernel driver in use: xhci_hcd Kernel modules: xhci_pci 00:14.2 Signal processing controller [1180]: Intel Corporation Sunrise Point-H Thermal subsystem [8086:a131] (rev 31) Subsystem: Fujitsu Technology Solutions 100 Series/C230 Series Chipset Family Thermal Subsystem [1734:121d] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin C routed to IRQ 18 Region 0: Memory at ef23a000 (64-bit, non-prefetchable) [size=4K] Capabilities: [50] Power Management version 3 Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME- Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit- Address: 00000000 Data: 0000 Kernel driver in use: intel_pch_thermal Kernel modules: intel_pch_thermal 00:16.0 Communication controller [0780]: Intel Corporation Sunrise Point-H CSME HECI #1 [8086:a13a] (rev 31) Subsystem: Fujitsu Technology Solutions 100 Series/C230 Series Chipset Family MEI Controller [1734:121d] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 145 Region 0: Memory at ef239000 (64-bit, non-prefetchable) [size=4K] Capabilities: [50] Power Management version 3 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot+,D3cold-) Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME- Capabilities: [8c] MSI: Enable+ Count=1/1 Maskable- 64bit+ Address: 00000000fee00518 Data: 0000 Kernel driver in use: mei_me Kernel modules: mei_me 00:17.0 SATA controller [0106]: Intel Corporation Sunrise Point-H SATA controller [AHCI mode] [8086:a102] (rev 31) (prog-if 01 [AHCI 1.0]) Subsystem: Fujitsu Technology Solutions Q170/Q150/B150/H170/H110/Z170/CM236 Chipset SATA Controller [AHCI Mode] [1734:121d] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR+ FastB2B- DisINTx+ Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 128 Region 0: Memory at ef234000 (32-bit, non-prefetchable) [size=8K] Region 1: Memory at ef238000 (32-bit, non-prefetchable) [size=256] Region 2: I/O ports at f090 [size=8] Region 3: I/O ports at f080 [size=4] Region 4: I/O ports at f060 [size=32] Region 5: Memory at ef237000 (32-bit, non-prefetchable) [size=2K] Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit- Address: fee002d8 Data: 0000 Capabilities: [70] Power Management version 3 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot+,D3cold-) Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME- Capabilities: [a8] SATA HBA v1.0 BAR4 Offset=00000004 Kernel driver in use: ahci Kernel modules: ahci 00:1c.0 PCI bridge [0604]: Intel Corporation Sunrise Point-H PCI Express Root Port #5 [8086:a114] (rev f1) (prog-if 00 [Normal decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR+ FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 122 Bus: primary=00, secondary=01, subordinate=01, sec-latency=0 Memory behind bridge: ef100000-ef1fffff Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR- BridgeCtl: Parity+ SERR+ NoISA- VGA- MAbort- >Reset- FastB2B- PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- Capabilities: [40] Express (v2) Root Port (Slot+), MSI 00 DevCap: MaxPayload 256 bytes, PhantFunc 0 ExtTag- RBE+ DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported- RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop- MaxPayload 256 bytes, MaxReadReq 128 bytes DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend- LnkCap: Port #5, Speed 8GT/s, Width x4, ASPM not supported, Exit Latency L0s <1us, L1 <16us ClockPM- Surprise- LLActRep+ BwNot+ ASPMOptComp+ LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+ ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed 8GT/s, Width x4, TrErr- Train- SlotClk+ DLActive+ BWMgmt+ ABWMgmt- SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surprise- Slot #8, PowerLimit 25.000W; Interlock- NoCompl+ SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg- Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock- SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+ Interlock- Changed: MRL- PresDet- LinkState+ RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna+ CRSVisible- RootCap: CRSVisible- RootSta: PME ReqID 0000, PMEStatus- PMEPending- DevCap2: Completion Timeout: Range ABC, TimeoutDis+, LTR+, OBFF Not Supported ARIFwd+ DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR+, OBFF Disabled ARIFwd- LnkCtl2: Target Link Speed: 8GT/s, EnterCompliance- SpeedDis- Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS- Compliance De-emphasis: -6dB LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete+, EqualizationPhase1+ EqualizationPhase2+, EqualizationPhase3+, LinkEqualizationRequest- Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit- Address: fee00218 Data: 0000 Capabilities: [90] Subsystem: Fujitsu Technology Solutions 100 Series/C230 Series Chipset Family PCI Express Root Port [1734:121d] Capabilities: [a0] Power Management version 3 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- Capabilities: [100 v1] Advanced Error Reporting UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt+ RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UESvrt: DLP+ SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol- CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr- CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+ AERCap: First Error Pointer: 00, GenCap- CGenEn- ChkCap- ChkEn- Capabilities: [140 v1] Access Control Services ACSCap: SrcValid+ TransBlk+ ReqRedir+ CmpltRedir+ UpstreamFwd- EgressCtrl- DirectTrans- ACSCtl: SrcValid- TransBlk- ReqRedir- CmpltRedir- UpstreamFwd- EgressCtrl- DirectTrans- Capabilities: [220 v1] #19 Kernel driver in use: pcieport 00:1d.0 PCI bridge [0604]: Intel Corporation Sunrise Point-H PCI Express Root Port #9 [8086:a118] (rev f1) (prog-if 00 [Normal decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR+ FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 123 Bus: primary=00, secondary=02, subordinate=02, sec-latency=0 Memory behind bridge: ef000000-ef0fffff Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR- BridgeCtl: Parity+ SERR+ NoISA- VGA- MAbort- >Reset- FastB2B- PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- Capabilities: [40] Express (v2) Root Port (Slot+), MSI 00 DevCap: MaxPayload 256 bytes, PhantFunc 0 ExtTag- RBE+ DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported- RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop- MaxPayload 256 bytes, MaxReadReq 128 bytes DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend- LnkCap: Port #9, Speed 8GT/s, Width x4, ASPM L1, Exit Latency L0s <1us, L1 <16us ClockPM- Surprise- LLActRep+ BwNot+ ASPMOptComp+ LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- CommClk+ ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed 8GT/s, Width x4, TrErr- Train- SlotClk+ DLActive+ BWMgmt+ ABWMgmt- SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surprise- Slot #12, PowerLimit 25.000W; Interlock- NoCompl+ SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg- Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock- SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+ Interlock- Changed: MRL- PresDet- LinkState+ RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna+ CRSVisible- RootCap: CRSVisible- RootSta: PME ReqID 0000, PMEStatus- PMEPending- DevCap2: Completion Timeout: Range ABC, TimeoutDis+, LTR+, OBFF Not Supported ARIFwd+ DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR+, OBFF Disabled ARIFwd- LnkCtl2: Target Link Speed: 8GT/s, EnterCompliance- SpeedDis- Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS- Compliance De-emphasis: -6dB LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete+, EqualizationPhase1+ EqualizationPhase2+, EqualizationPhase3+, LinkEqualizationRequest- Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit- Address: fee00238 Data: 0000 Capabilities: [90] Subsystem: Fujitsu Technology Solutions 100 Series/C230 Series Chipset Family PCI Express Root Port [1734:121d] Capabilities: [a0] Power Management version 3 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- Capabilities: [100 v1] Advanced Error Reporting UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt+ RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UESvrt: DLP+ SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol- CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr- CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+ AERCap: First Error Pointer: 00, GenCap- CGenEn- ChkCap- ChkEn- Capabilities: [140 v1] Access Control Services ACSCap: SrcValid+ TransBlk+ ReqRedir+ CmpltRedir+ UpstreamFwd- EgressCtrl- DirectTrans- ACSCtl: SrcValid- TransBlk- ReqRedir- CmpltRedir- UpstreamFwd- EgressCtrl- DirectTrans- Capabilities: [220 v1] #19 Kernel driver in use: pcieport 00:1f.0 ISA bridge [0601]: Intel Corporation Sunrise Point-H LPC Controller [8086:a148] (rev 31) Subsystem: Fujitsu Technology Solutions B150 Chipset LPC/eSPI Controller [1734:121d] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR+ FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 00:1f.2 Memory controller [0580]: Intel Corporation Sunrise Point-H PMC [8086:a121] (rev 31) Subsystem: Fujitsu Technology Solutions 100 Series/C230 Series Chipset Family Power Management Controller [1734:121d] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Region 0: Memory at ef230000 (32-bit, non-prefetchable) [size=16K] 00:1f.4 SMBus [0c05]: Intel Corporation Sunrise Point-H SMBus [8086:a123] (rev 31) Subsystem: Fujitsu Technology Solutions 100 Series/C230 Series Chipset Family SMBus [1734:121d] Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR+ FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Interrupt: pin A routed to IRQ 16 Region 0: Memory at ef236000 (64-bit, non-prefetchable) [size=256] Region 4: I/O ports at f040 [size=32] Kernel driver in use: i801_smbus Kernel modules: i2c_i801 00:1f.6 Ethernet controller [0200]: Intel Corporation Ethernet Connection (2) I219-LM [8086:15b7] (rev 31) Subsystem: Fujitsu Technology Solutions Ethernet Connection (2) I219-LM [1734:121f] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR+ FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 126 Region 0: Memory at ef200000 (32-bit, non-prefetchable) [size=128K] Capabilities: [c8] Power Management version 3 Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+) Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=1 PME- Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+ Address: 00000000fee00298 Data: 0000 Capabilities: [e0] PCI Advanced Features AFCap: TP+ FLR+ AFCtrl: FLR- AFStatus: TP- Kernel driver in use: e1000e Kernel modules: e1000e 01:00.0 Non-Volatile memory controller [0108]: Samsung Electronics Co Ltd NVMe SSD Controller SM981/PM981 [144d:a808] (prog-if 02 [NVM Express]) Subsystem: Samsung Electronics Co Ltd NVMe SSD Controller SM981/PM981 [144d:a801] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR+ FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 16 NUMA node: 0 Region 0: Memory at ef100000 (64-bit, non-prefetchable) [size=16K] Capabilities: [40] Power Management version 3 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME- Capabilities: [50] MSI: Enable- Count=1/32 Maskable- 64bit+ Address: 0000000000000000 Data: 0000 Capabilities: [70] Express (v2) Endpoint, MSI 00 DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s unlimited, L1 unlimited ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset+ SlotPowerLimit 25.000W DevCtl: Report errors: Correctable+ Non-Fatal+ Fatal+ Unsupported+ RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+ FLReset- MaxPayload 256 bytes, MaxReadReq 512 bytes DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend- LnkCap: Port #0, Speed 8GT/s, Width x4, ASPM L1, Exit Latency L0s unlimited, L1 <64us ClockPM+ Surprise- LLActRep- BwNot- ASPMOptComp+ LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+ ExtSynch- ClockPM+ AutWidDis- BWInt- AutBWInt- LnkSta: Speed 8GT/s, Width x4, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- DevCap2: Completion Timeout: Range ABCD, TimeoutDis+, LTR+, OBFF Not Supported DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR+, OBFF Disabled LnkCtl2: Target Link Speed: 8GT/s, EnterCompliance- SpeedDis- Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS- Compliance De-emphasis: -6dB LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete+, EqualizationPhase1+ EqualizationPhase2+, EqualizationPhase3+, LinkEqualizationRequest- Capabilities: [b0] MSI-X: Enable+ Count=33 Masked- Vector table: BAR=0 offset=00003000 PBA: BAR=0 offset=00002000 Capabilities: [100 v2] Advanced Error Reporting UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol- CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr- CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+ AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn- Capabilities: [148 v1] Device Serial Number 00-00-00-00-00-00-00-00 Capabilities: [158 v1] Power Budgeting <?> Capabilities: [168 v1] #19 Capabilities: [188 v1] Latency Tolerance Reporting Max snoop latency: 3145728ns Max no snoop latency: 3145728ns Capabilities: [190 v1] L1 PM Substates L1SubCap: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+ L1_PM_Substates+ PortCommonModeRestoreTime=10us PortTPowerOnTime=10us L1SubCtl1: PCI-PM_L1.2- PCI-PM_L1.1- ASPM_L1.2- ASPM_L1.1- T_CommonMode=0us LTR1.2_Threshold=0ns L1SubCtl2: T_PwrOn=44us Kernel driver in use: nvme Kernel modules: nvme 02:00.0 Non-Volatile memory controller [0108]: Samsung Electronics Co Ltd NVMe SSD Controller SM981/PM981 [144d:a808] (prog-if 02 [NVM Express]) Subsystem: Samsung Electronics Co Ltd NVMe SSD Controller SM981/PM981 [144d:a801] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR+ FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 16 NUMA node: 0 Region 0: Memory at ef000000 (64-bit, non-prefetchable) [size=16K] Capabilities: [40] Power Management version 3 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME- Capabilities: [50] MSI: Enable- Count=1/32 Maskable- 64bit+ Address: 0000000000000000 Data: 0000 Capabilities: [70] Express (v2) Endpoint, MSI 00 DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s unlimited, L1 unlimited ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset+ SlotPowerLimit 25.000W DevCtl: Report errors: Correctable+ Non-Fatal+ Fatal+ Unsupported+ RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+ FLReset- MaxPayload 256 bytes, MaxReadReq 512 bytes DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend- LnkCap: Port #0, Speed 8GT/s, Width x4, ASPM L1, Exit Latency L0s unlimited, L1 <64us ClockPM+ Surprise- LLActRep- BwNot- ASPMOptComp+ LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- CommClk+ ExtSynch- ClockPM+ AutWidDis- BWInt- AutBWInt- LnkSta: Speed 8GT/s, Width x4, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- DevCap2: Completion Timeout: Range ABCD, TimeoutDis+, LTR+, OBFF Not Supported DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR+, OBFF Disabled LnkCtl2: Target Link Speed: 8GT/s, EnterCompliance- SpeedDis- Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS- Compliance De-emphasis: -6dB LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete+, EqualizationPhase1+ EqualizationPhase2+, EqualizationPhase3+, LinkEqualizationRequest- Capabilities: [b0] MSI-X: Enable+ Count=33 Masked- Vector table: BAR=0 offset=00003000 PBA: BAR=0 offset=00002000 Capabilities: [100 v2] Advanced Error Reporting UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol- CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr- CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+ AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn- Capabilities: [148 v1] Device Serial Number 00-00-00-00-00-00-00-00 Capabilities: [158 v1] Power Budgeting <?> Capabilities: [168 v1] #19 Capabilities: [188 v1] Latency Tolerance Reporting Max snoop latency: 3145728ns Max no snoop latency: 3145728ns Capabilities: [190 v1] L1 PM Substates L1SubCap: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+ L1_PM_Substates+ PortCommonModeRestoreTime=10us PortTPowerOnTime=10us L1SubCtl1: PCI-PM_L1.2- PCI-PM_L1.1- ASPM_L1.2- ASPM_L1.1- T_CommonMode=0us LTR1.2_Threshold=0ns L1SubCtl2: T_PwrOn=44us Kernel driver in use: nvme Kernel modules: nvme ** USB devices: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub -- System Information: Debian Release: 10.0 APT prefers testing APT policy: (500, 'testing') Architecture: amd64 (x86_64) Kernel: Linux 4.19.0-4-amd64 (SMP w/8 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages linux-image-4.19.0-4-amd64 depends on: ii initramfs-tools [linux-initramfs-tool] 0.133 ii kmod 26-1 ii linux-base 4.6 Versions of packages linux-image-4.19.0-4-amd64 recommends: ii apparmor 2.13.2-10 ii firmware-linux-free 3.4 ii irqbalance 1.5.0-3 Versions of packages linux-image-4.19.0-4-amd64 suggests: pn debian-kernel-handbook <none> ii grub-pc 2.02+dfsg1-16 pn linux-doc-4.19 <none> Versions of packages linux-image-4.19.0-4-amd64 is related to: ii firmware-amd-graphics 20190114-1 pn firmware-atheros <none> pn firmware-bnx2 <none> pn firmware-bnx2x <none> pn firmware-brcm80211 <none> pn firmware-cavium <none> pn firmware-intel-sound <none> pn firmware-intelwimax <none> pn firmware-ipw2x00 <none> pn firmware-ivtv <none> pn firmware-iwlwifi <none> pn firmware-libertas <none> ii firmware-linux-nonfree 20190114-1 ii firmware-misc-nonfree 20190114-1 pn firmware-myricom <none> pn firmware-netxen <none> pn firmware-qlogic <none> pn firmware-realtek <none> pn firmware-samsung <none> pn firmware-siano <none> pn firmware-ti-connectivity <none> pn xen-hypervisor <none> -- no debconf information
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| From | Yury Vidineev <adeptg@gmail.com> |
|---|---|
| Date | 2019-04-16 23:00 +0200 |
| Subject | Bug#927184: SATA SSD affected as well |
| Message-ID | <xNDln-5yT-3@gated-at.bofh.it> |
| In reply to | #63872 |
Looks like SATA SSD affected as well. Another example: Device r/s w/s rMB/s wMB/s rrqm/s wrqm/s %rrqm %wrqm r_await w_await aqu-sz rareq-sz wareq-sz svctm %util sda 0.47 8.94 0.01 0.48 0.00 8.05 0.10 47.39 0.25 1.29 0.97 11.60 54.71 101.89 95.93 cat /proc/diskstats 8 0 sda 491891 492 11411048 123425 9276833 8357440 1015034844 11962746 0 995354116 1004716180 196878 0 1461959742 168844 8 1 sda1 626 12 9590 187 77 249 56356 333 0 340 616 161 0 269038 137 8 2 sda2 4500 182 41464 1101 20884 15531 348440 2415 0 2604 3184 0 0 0 0 8 3 sda3 486635 298 11353698 122074 9222603 8341660 1014630048 11958045 0 2035580 9165808 196717 0 1461690704 168706 Model: ATA INTEL SSDSC2BB48 (scsi) Disk /dev/sda: 480GB
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| From | Yury Vidineev <adeptg@gmail.com> |
|---|---|
| Date | 2019-06-18 00:40 +0200 |
| Subject | Bug#927184: Looks like RedHat/CentOS has a possible solution |
| Message-ID | <ya8s9-5g1-3@gated-at.bofh.it> |
| In reply to | #63872 |
https://bugs.centos.org/view.php?id=15723
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| From | jaroslav@thinline.cz |
|---|---|
| Date | 2020-12-23 11:40 +0100 |
| Subject | Bug#927184: linux-image-4.19.0-4-amd64: Linux 4.19 reports wrong numbers for disks in /proc/diskstats |
| Message-ID | <Bp9IJ-10Z-1@gated-at.bofh.it> |
| In reply to | #63872 |
Package: linux-source-4.19 Version: 4.19.160-2 Followup-For: Bug #927184 We got hit by this bug after updating to most recent kernel version. In our case it affected all disk drives, regardless of their type (rotating or SSD.) After some research, we found out that the issue was triggered by change of default I/O scheduler done by us before the update (and taking effect after restart.) See the following console output: root@server:~# cat /sys/block/sde/queue/scheduler [mq-deadline] none root@server:~# for a in $( seq 1 5 ) ; do sleep 1 ; cat /sys/block/sde/stat ; done 11452700 133667 706138701 5139372 168800292 66117118 3870603434 78079852 0 1156352620 1170874630 1819485 0 349746784 1614457 11452700 133667 706138701 5139372 168800309 66117137 3870603746 78079862 0 1156352630 1170874640 1819485 0 349746784 1614457 11452700 133667 706138701 5139372 168800417 66117189 3870604914 78079911 0 1156352640 1170874650 1819485 0 349746784 1614457 11452700 133667 706138701 5139372 168800431 66117205 3870605154 78080014 0 1156352740 1170874750 1819485 0 349746784 1614457 11452700 133667 706138701 5139372 168800491 66117250 3870606090 78080037 0 1156352750 1170874760 1819486 0 349746792 1614457 root@server:~# echo "none"> /sys/block/sde/queue/scheduler root@server:~# for a in $( seq 1 5 ) ; do sleep 1 ; cat /sys/block/sde/stat ; done 11452709 133667 706138965 5139376 168803680 66118376 3870643746 78081646 0 1156354860 1170878030 1819488 0 349746808 1614459 11452710 133667 706138997 5139377 168804363 66118550 3870650634 78081962 0 1156355800 1170879210 1819489 0 349746816 1614459 11452710 133667 706138997 5139377 168804439 66118594 3870651642 78081993 0 1156356740 1170880150 1819489 0 349746816 1614459 11452710 133667 706138997 5139377 168804498 66118653 3870652762 78082022 0 1156357680 1170881090 1819489 0 349746816 1614459 11452710 133667 706138997 5139377 168804569 66118700 3870653834 78082053 0 1156358630 1170882040 1819489 0 349746816 1614459 root@server:~# echo "mq-deadline"> /sys/block/sde/queue/scheduler root@server:~# for a in $( seq 1 5 ) ; do sleep 1 ; cat /sys/block/sde/stat ; done 11452710 133667 706138997 5139377 168804885 66118930 3870658594 78082208 0 1156361540 1170884950 1819491 0 349779592 1614461 11452710 133667 706138997 5139377 168804942 66118957 3870659346 78082236 0 1156361570 1170884980 1819491 0 349779592 1614461 11452711 133667 706139005 5139377 168805194 66119062 3870673810 78082346 0 1156361630 1170885050 1819491 0 349779592 1614461 11452711 133667 706139005 5139377 168805240 66119088 3870674394 78082368 0 1156361630 1170885050 1819491 0 349779592 1614461 11452711 133667 706139005 5139377 168805464 66119186 3870688410 78082457 0 1156361670 1170885130 1819491 0 349779592 1614461 As long as mq-deadline scheduler is active, all works well, value in 10th column is increasing by realistic steps. After switching to none scheduler, the steps increase to almost a second whenever there is at least some activity on the drive. That in turn shows as almost 100% disk utilization in tools that use these values. Note that the value in 10th column is supposed to be increasing when value in 9th column is non-zero (according to https://www.kernel.org/doc/Documentation/iostats.txt ), yet I saw no occurence of non-zero number in that column in my testing, which does not correspond to device under 100% load. Using mq-deadline in virtual machines and for SSDs is most likely not optimal, but as a workaround, switching to mq-deadline works.
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