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NULL pointer dereference

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  NULL pointer dereference Grzesiek Sójka <pld@sojka.co> - 2020-12-19 17:20 +0100
    Re: NULL pointer dereference David Christensen <dpchrist@holgerdanske.com> - 2020-12-19 20:50 +0100
      Re: NULL pointer dereference Grzesiek Sójka <pld@sojka.co> - 2020-12-19 21:10 +0100
    Re: NULL pointer dereference "Alexander V. Makartsev" <avbetev@gmail.com> - 2020-12-19 22:00 +0100
      Re: NULL pointer dereference Grzesiek Sójka <pld@sojka.co> - 2020-12-21 00:20 +0100
        Re: NULL pointer dereference "Thomas Schmitt" <scdbackup@gmx.net> - 2020-12-21 12:40 +0100
        Re: NULL pointer dereference "Alexander V. Makartsev" <avbetev@gmail.com> - 2020-12-21 14:10 +0100
    Re: NULL pointer dereference Marko Randjelovic <markoran@eunet.rs> - 2020-12-20 22:30 +0100
      Re: NULL pointer dereference Grzesiek Sójka <pld@sojka.co> - 2020-12-21 00:20 +0100
        Re: NULL pointer dereference deloptes <deloptes@gmail.com> - 2020-12-21 01:00 +0100

#229842 — NULL pointer dereference

Hi there,

I found the following in my "server" log:

==============================================

BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
PGD 0 P4D 0
Oops: 0000 [#2] SMP PTI
CPU: 5 PID: 12441 Comm: awk Tainted: G      D           4.19.0-13-amd64 
#1 Debian 4.19.160-2
Hardware name: FUJITSU D3162-B1/D3162-B1, BIOS V4.6.5.3 R1.23.0 for 
D3162-B1x 12/01/2014
RIP: 0010:unmap_page_range+0x561/0xa60
Code: 80 00 00 00 01 e8 4f 2b 01 00 49 8b 07 f6 c4 80 0f 84 0e 03 00 00 
4c 89 ff e8 6b 91 fe ff 85 c0 0f 88 e6 02 00 00 49 8b 46 28 <8b> 50 08 
8d 4a 01 89 48 08 4c 89 7c d0 10 3b 48 0c 0f 84 d2 00 00
RSP: 0018:ffff9c3a49167cd0 EFLAGS: 00010206
RAX: 0000000000000000 RBX: ffff8e2f47a83a10 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8e2f7dd20000
RBP: 00007faa2ed43000 R08: 0000000000000000 R09: ffff8e2ef8ae1c70
R10: ffff8e2f9e5df000 R11: 0000000000000000 R12: 00007faa2ed42000
R13: 000000014fd44025 R14: ffff9c3a49167dd0 R15: ffffd073853f5100
FS:  0000000000000000(0000) GS:ffff8e2f7e140000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000008 CR3: 000000015020a003 CR4: 00000000000606e0
Call Trace:
  unmap_vmas+0x7f/0xb0
  exit_mmap+0xaa/0x180
  mmput+0x54/0x130
  do_exit+0x33f/0xbb0
  ? handle_mm_fault+0xd6/0x200
  do_group_exit+0x3a/0xa0
  __x64_sys_exit_group+0x14/0x20
  do_syscall_64+0x53/0x110
  entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7faa2eaa99d6
Code: Bad RIP value.
RSP: 002b:00007ffd860931d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007faa2eb9a760 RCX: 00007faa2eaa99d6
RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000
RBP: 0000000000000000 R08: 00000000000000e7 R09: ffffffffffffff80
R10: 00007ffd86093096 R11: 0000000000000246 R12: 00007faa2eb9a760
R13: 0000000000000001 R14: 00007faa2eba3428 R15: 0000000000000000
Modules linked in: ppp_deflate cfg80211 rfkill 8021q garp stp mrp llc 
ppp_async crc_ccitt ppp_generic slhc nfsd auth_rpcgss nfs_acl lockd 
grace sunrpc xt_nat nft_chain_nat_ipv4 nf_nat_ipv4 nf_nat nf_conntrack 
nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c ipt_REJECT nf_reject_ipv4 
nft_limit xt_limit xt_tcpudp nft_compat x_tables nft_counter nf_tables 
nfnetlink binfmt_misc bonding sch5636 sch56xx_common rc_it913x_v1 it913x 
af9033 dvb_usb_af9035 dvb_usb_v2 dvb_core rc_core snd_hda_codec_hdmi 
snd_hda_codec_conexant snd_hda_codec_generic intel_rapl i915 
x86_pkg_temp_thermal snd_hda_intel intel_powerclamp snd_hda_codec 
coretemp snd_hda_core snd_hwdep snd_pcm xhci_pci ehci_pci ahci snd_timer 
xhci_hcd drm_kms_helper ehci_hcd libahci kvm snd mei_wdt tg3 iTCO_wdt 
irqbypass mei_me e1000e drm libata usbcore
  iTCO_vendor_support soundcore lpc_ich libphy mei i2c_algo_bit 
usb_common mfd_core crct10dif_pclmul crc32_pclmul ppdev 
ghash_clmulni_intel sg i2c_i801 intel_cstate evdev intel_uncore 
pcc_cpufreq video parport_pc button intel_rapl_perf pcspkr parport ext4 
crc16 mbcache jbd2 crc32c_generic fscrypto ecb sd_mod crc32c_intel 
aacraid aesni_intel aes_x86_64 crypto_simd scsi_mod cryptd glue_helper 
thermal fan
CR2: 0000000000000008
---[ end trace 1f0672175c6e1ff0 ]---
RIP: 0010:unmap_page_range+0x55d/0xa60
Code: ff 83 ac 84 80 00 00 00 01 e8 4f 2b 01 00 49 8b 07 f6 c4 80 0f 84 
0e 03 00 00 4c 89 ff e8 6b 91 fe ff 85 c0 0f 88 e6 02 00 00 <49> 8b 46 
28 8b 50 08 8d 4a 01 89 48 08 4c 89 7c d0 10 3b 48 0c 0f
RSP: 0018:ffff9c3a43a67cd0 EFLAGS: 00010202
RAX: 0000000000000004 RBX: ffff8e2f47a0deb0 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8e2f7dd20000
RBP: 00007f9f121d7000 R08: 0000000000000000 R09: ffff8e2f6a6e09c0
R10: ffff8e2f9e5df000 R11: 0000000000000000 R12: 00007f9f121d6000
R13: 000000081e49f025 R14: ffff9c3a43a67dd0 R15: ffffd073a07927c0
FS:  0000000000000000(0000) GS:ffff8e2f7e140000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007faa2eaa99ac CR3: 000000015020a003 CR4: 00000000000606e0
Fixing recursive fault but reboot is needed!

============================================

This is not the first time, so I suspect a persistent problem. I have no 
idea how to look for the solution. Any suggestions??
Just in case:

============================================

# lspci
00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor 
Family DRAM Controller (rev 09)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core 
Processor Family PCI Express Root Port (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core 
Processor Family Integrated Graphics Controller (rev 09)
00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset 
Family USB xHCI Host Controller (rev 04)
00:16.0 Communication controller: Intel Corporation 7 Series/C216 
Chipset Family MEI Controller #1 (rev 04)
00:16.3 Serial controller: Intel Corporation 7 Series/C210 Series 
Chipset Family KT Controller (rev 04)
00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network 
Connection (rev 04)
00:1a.0 USB controller: Intel Corporation 7 Series/C216 Chipset Family 
USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 7 Series/C216 Chipset Family 
High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 7 Series/C216 Chipset Family PCI 
Express Root Port 1 (rev c4)
00:1d.0 USB controller: Intel Corporation 7 Series/C216 Chipset Family 
USB Enhanced Host Controller #1 (rev 04)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev a4)
00:1f.0 ISA bridge: Intel Corporation Q77 Express Chipset LPC Controller 
(rev 04)
00:1f.2 SATA controller: Intel Corporation 7 Series/C210 Series Chipset 
Family 6-port SATA Controller [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 7 Series/C216 Chipset Family SMBus 
Controller (rev 04)
00:1f.6 Signal processing controller: Intel Corporation 7 Series/C210 
Series Chipset Family Thermal Management Controller (rev 04)
01:00.0 RAID bus controller: Adaptec Series 7 6G SAS/PCIe 3 (rev 01)
02:00.0 Ethernet controller: Broadcom Limited NetXtreme BCM5719 Gigabit 
Ethernet PCIe (rev 01)
02:00.1 Ethernet controller: Broadcom Limited NetXtreme BCM5719 Gigabit 
Ethernet PCIe (rev 01)
02:00.2 Ethernet controller: Broadcom Limited NetXtreme BCM5719 Gigabit 
Ethernet PCIe (rev 01)
02:00.3 Ethernet controller: Broadcom Limited NetXtreme BCM5719 Gigabit 
Ethernet PCIe (rev 01)

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#229847

On 2020-12-19 08:13, Grzesiek Sójka wrote:
> Hi there,
> 
> I found the following in my "server" log:
> 
> ==============================================
> 
> BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
> PGD 0 P4D 0
> Oops: 0000 [#2] SMP PTI
> CPU: 5 PID: 12441 Comm: awk Tainted: G      D           4.19.0-13-amd64 
> #1 Debian 4.19.160-2
> Hardware name: FUJITSU D3162-B1/D3162-B1, BIOS V4.6.5.3 R1.23.0 for 
> D3162-B1x 12/01/2014
> RIP: 0010:unmap_page_range+0x561/0xa60
> Code: 80 00 00 00 01 e8 4f 2b 01 00 49 8b 07 f6 c4 80 0f 84 0e 03 00 00 
> 4c 89 ff e8 6b 91 fe ff 85 c0 0f 88 e6 02 00 00 49 8b 46 28 <8b> 50 08 
> 8d 4a 01 89 48 08 4c 89 7c d0 10 3b 48 0c 0f 84 d2 00 00
> RSP: 0018:ffff9c3a49167cd0 EFLAGS: 00010206
> RAX: 0000000000000000 RBX: ffff8e2f47a83a10 RCX: 0000000000000001
> RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8e2f7dd20000
> RBP: 00007faa2ed43000 R08: 0000000000000000 R09: ffff8e2ef8ae1c70
> R10: ffff8e2f9e5df000 R11: 0000000000000000 R12: 00007faa2ed42000
> R13: 000000014fd44025 R14: ffff9c3a49167dd0 R15: ffffd073853f5100
> FS:  0000000000000000(0000) GS:ffff8e2f7e140000(0000) 
> knlGS:0000000000000000
> CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: 0000000000000008 CR3: 000000015020a003 CR4: 00000000000606e0
> Call Trace:
>   unmap_vmas+0x7f/0xb0
>   exit_mmap+0xaa/0x180
>   mmput+0x54/0x130
>   do_exit+0x33f/0xbb0
>   ? handle_mm_fault+0xd6/0x200
>   do_group_exit+0x3a/0xa0
>   __x64_sys_exit_group+0x14/0x20
>   do_syscall_64+0x53/0x110
>   entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x7faa2eaa99d6
> Code: Bad RIP value.
> RSP: 002b:00007ffd860931d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
> RAX: ffffffffffffffda RBX: 00007faa2eb9a760 RCX: 00007faa2eaa99d6
> RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000
> RBP: 0000000000000000 R08: 00000000000000e7 R09: ffffffffffffff80
> R10: 00007ffd86093096 R11: 0000000000000246 R12: 00007faa2eb9a760
> R13: 0000000000000001 R14: 00007faa2eba3428 R15: 0000000000000000
> Modules linked in: ppp_deflate cfg80211 rfkill 8021q garp stp mrp llc 
> ppp_async crc_ccitt ppp_generic slhc nfsd auth_rpcgss nfs_acl lockd 
> grace sunrpc xt_nat nft_chain_nat_ipv4 nf_nat_ipv4 nf_nat nf_conntrack 
> nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c ipt_REJECT nf_reject_ipv4 
> nft_limit xt_limit xt_tcpudp nft_compat x_tables nft_counter nf_tables 
> nfnetlink binfmt_misc bonding sch5636 sch56xx_common rc_it913x_v1 it913x 
> af9033 dvb_usb_af9035 dvb_usb_v2 dvb_core rc_core snd_hda_codec_hdmi 
> snd_hda_codec_conexant snd_hda_codec_generic intel_rapl i915 
> x86_pkg_temp_thermal snd_hda_intel intel_powerclamp snd_hda_codec 
> coretemp snd_hda_core snd_hwdep snd_pcm xhci_pci ehci_pci ahci snd_timer 
> xhci_hcd drm_kms_helper ehci_hcd libahci kvm snd mei_wdt tg3 iTCO_wdt 
> irqbypass mei_me e1000e drm libata usbcore
>   iTCO_vendor_support soundcore lpc_ich libphy mei i2c_algo_bit 
> usb_common mfd_core crct10dif_pclmul crc32_pclmul ppdev 
> ghash_clmulni_intel sg i2c_i801 intel_cstate evdev intel_uncore 
> pcc_cpufreq video parport_pc button intel_rapl_perf pcspkr parport ext4 
> crc16 mbcache jbd2 crc32c_generic fscrypto ecb sd_mod crc32c_intel 
> aacraid aesni_intel aes_x86_64 crypto_simd scsi_mod cryptd glue_helper 
> thermal fan
> CR2: 0000000000000008
> ---[ end trace 1f0672175c6e1ff0 ]---
> RIP: 0010:unmap_page_range+0x55d/0xa60
> Code: ff 83 ac 84 80 00 00 00 01 e8 4f 2b 01 00 49 8b 07 f6 c4 80 0f 84 
> 0e 03 00 00 4c 89 ff e8 6b 91 fe ff 85 c0 0f 88 e6 02 00 00 <49> 8b 46 
> 28 8b 50 08 8d 4a 01 89 48 08 4c 89 7c d0 10 3b 48 0c 0f
> RSP: 0018:ffff9c3a43a67cd0 EFLAGS: 00010202
> RAX: 0000000000000004 RBX: ffff8e2f47a0deb0 RCX: 0000000000000001
> RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8e2f7dd20000
> RBP: 00007f9f121d7000 R08: 0000000000000000 R09: ffff8e2f6a6e09c0
> R10: ffff8e2f9e5df000 R11: 0000000000000000 R12: 00007f9f121d6000
> R13: 000000081e49f025 R14: ffff9c3a43a67dd0 R15: ffffd073a07927c0
> FS:  0000000000000000(0000) GS:ffff8e2f7e140000(0000) 
> knlGS:0000000000000000
> CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: 00007faa2eaa99ac CR3: 000000015020a003 CR4: 00000000000606e0
> Fixing recursive fault but reboot is needed!
> 
> ============================================
> 
> This is not the first time, so I suspect a persistent problem. I have no 
> idea how to look for the solution. Any suggestions??
> Just in case:
> 
> ============================================
> 
> # lspci
> 00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor 
> Family DRAM Controller (rev 09)
> 00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core 
> Processor Family PCI Express Root Port (rev 09)
> 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core 
> Processor Family Integrated Graphics Controller (rev 09)
> 00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset 
> Family USB xHCI Host Controller (rev 04)
> 00:16.0 Communication controller: Intel Corporation 7 Series/C216 
> Chipset Family MEI Controller #1 (rev 04)
> 00:16.3 Serial controller: Intel Corporation 7 Series/C210 Series 
> Chipset Family KT Controller (rev 04)
> 00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network 
> Connection (rev 04)
> 00:1a.0 USB controller: Intel Corporation 7 Series/C216 Chipset Family 
> USB Enhanced Host Controller #2 (rev 04)
> 00:1b.0 Audio device: Intel Corporation 7 Series/C216 Chipset Family 
> High Definition Audio Controller (rev 04)
> 00:1c.0 PCI bridge: Intel Corporation 7 Series/C216 Chipset Family PCI 
> Express Root Port 1 (rev c4)
> 00:1d.0 USB controller: Intel Corporation 7 Series/C216 Chipset Family 
> USB Enhanced Host Controller #1 (rev 04)
> 00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev a4)
> 00:1f.0 ISA bridge: Intel Corporation Q77 Express Chipset LPC Controller 
> (rev 04)
> 00:1f.2 SATA controller: Intel Corporation 7 Series/C210 Series Chipset 
> Family 6-port SATA Controller [AHCI mode] (rev 04)
> 00:1f.3 SMBus: Intel Corporation 7 Series/C216 Chipset Family SMBus 
> Controller (rev 04)
> 00:1f.6 Signal processing controller: Intel Corporation 7 Series/C210 
> Series Chipset Family Thermal Management Controller (rev 04)
> 01:00.0 RAID bus controller: Adaptec Series 7 6G SAS/PCIe 3 (rev 01)
> 02:00.0 Ethernet controller: Broadcom Limited NetXtreme BCM5719 Gigabit 
> Ethernet PCIe (rev 01)
> 02:00.1 Ethernet controller: Broadcom Limited NetXtreme BCM5719 Gigabit 
> Ethernet PCIe (rev 01)
> 02:00.2 Ethernet controller: Broadcom Limited NetXtreme BCM5719 Gigabit 
> Ethernet PCIe (rev 01)
> 02:00.3 Ethernet controller: Broadcom Limited NetXtreme BCM5719 Gigabit 
> Ethernet PCIe (rev 01)
> 

Which Debian?


Which kernel?


Did you follow the instructions and reboot?


David

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#229848

On 12/19/20 8:43 PM, David Christensen wrote:
 >
 > Which Debian?
Buster, up to date

 > Which kernel?
cat /proc/version
Linux version 4.19.0-13-amd64 (debian-kernel@lists.debian.org) (gcc 
version 8.3.0 (Debian 8.3.0-6)) #1 SMP Debian 4.19.160-2 (2020-11-28)

 > Did you follow the instructions and reboot?

Yes, reboot does not help

Greg

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#229852

[Multipart message — attachments visible in raw view] — view raw

On 19.12.2020 21:13, Grzesiek Sójka wrote:
> Hi there,
>
> I found the following in my "server" log:
>
> ==============================================
>
> BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
> PGD 0 P4D 0
> Oops: 0000 [#2] SMP PTI
> CPU: 5 PID: 12441 Comm: awk Tainted: G      D 4.19.0-13-amd64 #1 
> Debian 4.19.160-2
> Hardware name: FUJITSU D3162-B1/D3162-B1, BIOS V4.6.5.3 R1.23.0 for 
> D3162-B1x 12/01/2014
> RIP: 0010:unmap_page_range+0x561/0xa60
> Code: 80 00 00 00 01 e8 4f 2b 01 00 49 8b 07 f6 c4 80 0f 84 0e 03 00 
> 00 4c 89 ff e8 6b 91 fe ff 85 c0 0f 88 e6 02 00 00 49 8b 46 28 <8b> 50 
> 08 8d 4a 01 89 48 08 4c 89 7c d0 10 3b 48 0c 0f 84 d2 00 00
> RSP: 0018:ffff9c3a49167cd0 EFLAGS: 00010206
> RAX: 0000000000000000 RBX: ffff8e2f47a83a10 RCX: 0000000000000001
> RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8e2f7dd20000
> RBP: 00007faa2ed43000 R08: 0000000000000000 R09: ffff8e2ef8ae1c70
> R10: ffff8e2f9e5df000 R11: 0000000000000000 R12: 00007faa2ed42000
> R13: 000000014fd44025 R14: ffff9c3a49167dd0 R15: ffffd073853f5100
> FS:  0000000000000000(0000) GS:ffff8e2f7e140000(0000) 
> knlGS:0000000000000000
> CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: 0000000000000008 CR3: 000000015020a003 CR4: 00000000000606e0
> Call Trace:
>  unmap_vmas+0x7f/0xb0
>  exit_mmap+0xaa/0x180
>  mmput+0x54/0x130
>  do_exit+0x33f/0xbb0
>  ? handle_mm_fault+0xd6/0x200
>  do_group_exit+0x3a/0xa0
>  __x64_sys_exit_group+0x14/0x20
>  do_syscall_64+0x53/0x110
>  entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x7faa2eaa99d6
> Code: Bad RIP value.
> RSP: 002b:00007ffd860931d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
> RAX: ffffffffffffffda RBX: 00007faa2eb9a760 RCX: 00007faa2eaa99d6
> RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000
> RBP: 0000000000000000 R08: 00000000000000e7 R09: ffffffffffffff80
> R10: 00007ffd86093096 R11: 0000000000000246 R12: 00007faa2eb9a760
> R13: 0000000000000001 R14: 00007faa2eba3428 R15: 0000000000000000
> Modules linked in: ppp_deflate cfg80211 rfkill 8021q garp stp mrp llc 
> ppp_async crc_ccitt ppp_generic slhc nfsd auth_rpcgss nfs_acl lockd 
> grace sunrpc xt_nat nft_chain_nat_ipv4 nf_nat_ipv4 nf_nat nf_conntrack 
> nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c ipt_REJECT nf_reject_ipv4 
> nft_limit xt_limit xt_tcpudp nft_compat x_tables nft_counter nf_tables 
> nfnetlink binfmt_misc bonding sch5636 sch56xx_common rc_it913x_v1 
> it913x af9033 dvb_usb_af9035 dvb_usb_v2 dvb_core rc_core 
> snd_hda_codec_hdmi snd_hda_codec_conexant snd_hda_codec_generic 
> intel_rapl i915 x86_pkg_temp_thermal snd_hda_intel intel_powerclamp 
> snd_hda_codec coretemp snd_hda_core snd_hwdep snd_pcm xhci_pci 
> ehci_pci ahci snd_timer xhci_hcd drm_kms_helper ehci_hcd libahci kvm 
> snd mei_wdt tg3 iTCO_wdt irqbypass mei_me e1000e drm libata usbcore
>  iTCO_vendor_support soundcore lpc_ich libphy mei i2c_algo_bit 
> usb_common mfd_core crct10dif_pclmul crc32_pclmul ppdev 
> ghash_clmulni_intel sg i2c_i801 intel_cstate evdev intel_uncore 
> pcc_cpufreq video parport_pc button intel_rapl_perf pcspkr parport 
> ext4 crc16 mbcache jbd2 crc32c_generic fscrypto ecb sd_mod 
> crc32c_intel aacraid aesni_intel aes_x86_64 crypto_simd scsi_mod 
> cryptd glue_helper thermal fan
> CR2: 0000000000000008
> ---[ end trace 1f0672175c6e1ff0 ]---
> RIP: 0010:unmap_page_range+0x55d/0xa60
> Code: ff 83 ac 84 80 00 00 00 01 e8 4f 2b 01 00 49 8b 07 f6 c4 80 0f 
> 84 0e 03 00 00 4c 89 ff e8 6b 91 fe ff 85 c0 0f 88 e6 02 00 00 <49> 8b 
> 46 28 8b 50 08 8d 4a 01 89 48 08 4c 89 7c d0 10 3b 48 0c 0f
> RSP: 0018:ffff9c3a43a67cd0 EFLAGS: 00010202
> RAX: 0000000000000004 RBX: ffff8e2f47a0deb0 RCX: 0000000000000001
> RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8e2f7dd20000
> RBP: 00007f9f121d7000 R08: 0000000000000000 R09: ffff8e2f6a6e09c0
> R10: ffff8e2f9e5df000 R11: 0000000000000000 R12: 00007f9f121d6000
> R13: 000000081e49f025 R14: ffff9c3a43a67dd0 R15: ffffd073a07927c0
> FS:  0000000000000000(0000) GS:ffff8e2f7e140000(0000) 
> knlGS:0000000000000000
> CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: 00007faa2eaa99ac CR3: 000000015020a003 CR4: 00000000000606e0
> Fixing recursive fault but reboot is needed!
>
> ============================================
>
> This is not the first time, so I suspect a persistent problem. I have 
> no idea how to look for the solution. Any suggestions??
If this is recurring error, was it identical in terms of codes, trace 
and register data?
If it is not identical I suggest to start by checking RAM (and partially 
a CPU) with Memtest86+ [1]
It will be good to know if hardware is fine anyway. Leave the test 
running overnight or longer. A 10 or so test passes should be enough to 
tell if RAM is good.
Next I'd check official Fujitsu website for BIOS\BMC\Firmware updates 
for your server\motherboard and update to latest version available.
It could be complicated and dangerous process, so be sure to first check 
out any relevant technical advisories from Fujitsu, that are available 
for your server system and official guides on update process.


[1] https://www.memtest.org/

-- 
With kindest regards, Alexander.

⢀⣴⠾⠻⢶⣦⠀
⣾⠁⢠⠒⠀⣿⡁ Debian - The universal operating system
⢿⡄⠘⠷⠚⠋⠀ https://www.debian.org
⠈⠳⣄⠀⠀⠀⠀

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#229870

On 12/19/20 9:57 PM, Alexander V. Makartsev wrote:
> If this is recurring error, was it identical in terms of codes, trace 
> and register data?

Errors look similar but I'm not an expert. Some numbers are different.

I think it started after installing HPE Ethernet 1Gb 4-port 331T 
Adapter. This is server adapter end requires PCIe pin B5 and B6 covering 
to disconnect SMBus

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#229879

Hi,

Alexander V. Makartsev wrote:
> > If this is recurring error, was it identical in terms of codes, trace and
> > register data?

Grzesiek Sójka wrote:
> Errors look similar but I'm not an expert. Some numbers are different.

Does it always name "awk" as the userland program which triggered the
kernel bug ?

> > > CPU: 5 PID: 12441 Comm: awk Tainted: G      D           4.19.0-13-amd64 #1


Have a nice day :)

Thomas

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#229881

[Multipart message — attachments visible in raw view] — view raw

On 21.12.2020 04:16, Grzesiek Sójka wrote:
> On 12/19/20 9:57 PM, Alexander V. Makartsev wrote:
>> If this is recurring error, was it identical in terms of codes, trace 
>> and register data?
>
> Errors look similar but I'm not an expert. Some numbers are different.
>
> I think it started after installing HPE Ethernet 1Gb 4-port 331T 
> Adapter. This is server adapter end requires PCIe pin B5 and B6 
> covering to disconnect SMBus
>
That is an interesting bit of information. Why do you think it requires 
that and what is the reason behind it?

This network adapter uses "tg3" driver and its version (3.137) from 
kernel 4.19.0-13-amd64 could have problems according to HP advisory. [1]
You should check out support section of HPE web site, there could be 
firmware updates for your network adapter. [2]

If your server is not at remote location, you can temporarily blacklist 
"tg3" module to prevent it from loading and see if your system will 
still get similar errors without 331T adapter.


[1] 
https://support.hpe.com/hpesc/public/docDisplay?docLocale=en_US&docId=a00099659en_us
[2] 
https://support.hpe.com/hpesc/public/km/product/1013098027/Product#t=DriversandSoftware&sort=relevancy&layout=table&numberOfResults=25

-- 
With kindest regards, Alexander.

⢀⣴⠾⠻⢶⣦⠀
⣾⠁⢠⠒⠀⣿⡁ Debian - The universal operating system
⢿⡄⠘⠷⠚⠋⠀ https://www.debian.org
⠈⠳⣄⠀⠀⠀⠀

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#229868

On Sat, 19 Dec 2020 17:13:13 +0100
Grzesiek Sójka <pld@sojka.co> wrote:

> Hi there,
> 
> I found the following in my "server" log:
> 
> ==============================================
> 
> BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
> PGD 0 P4D 0
> Oops: 0000 [#2] SMP PTI
> CPU: 5 PID: 12441 Comm: awk Tainted: G      D           4.19.0-13-amd64 
> #1 Debian 4.19.160-2
> Hardware name: FUJITSU D3162-B1/D3162-B1, BIOS V4.6.5.3 R1.23.0 for 
> D3162-B1x 12/01/2014
> RIP: 0010:unmap_page_range+0x561/0xa60
> Code: 80 00 00 00 01 e8 4f 2b 01 00 49 8b 07 f6 c4 80 0f 84 0e 03 00 00 
> 4c 89 ff e8 6b 91 fe ff 85 c0 0f 88 e6 02 00 00 49 8b 46 28 <8b> 50 08 
> 8d 4a 01 89 48 08 4c 89 7c d0 10 3b 48 0c 0f 84 d2 00 00
> RSP: 0018:ffff9c3a49167cd0 EFLAGS: 00010206
> RAX: 0000000000000000 RBX: ffff8e2f47a83a10 RCX: 0000000000000001
> RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8e2f7dd20000
> RBP: 00007faa2ed43000 R08: 0000000000000000 R09: ffff8e2ef8ae1c70
> R10: ffff8e2f9e5df000 R11: 0000000000000000 R12: 00007faa2ed42000
> R13: 000000014fd44025 R14: ffff9c3a49167dd0 R15: ffffd073853f5100
> FS:  0000000000000000(0000) GS:ffff8e2f7e140000(0000) knlGS:0000000000000000
> CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: 0000000000000008 CR3: 000000015020a003 CR4: 00000000000606e0
> Call Trace:
>   unmap_vmas+0x7f/0xb0
>   exit_mmap+0xaa/0x180
>   mmput+0x54/0x130
>   do_exit+0x33f/0xbb0
>   ? handle_mm_fault+0xd6/0x200
>   do_group_exit+0x3a/0xa0
>   __x64_sys_exit_group+0x14/0x20
>   do_syscall_64+0x53/0x110
>   entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x7faa2eaa99d6
> Code: Bad RIP value.
> RSP: 002b:00007ffd860931d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
> RAX: ffffffffffffffda RBX: 00007faa2eb9a760 RCX: 00007faa2eaa99d6
> RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000
> RBP: 0000000000000000 R08: 00000000000000e7 R09: ffffffffffffff80
> R10: 00007ffd86093096 R11: 0000000000000246 R12: 00007faa2eb9a760
> R13: 0000000000000001 R14: 00007faa2eba3428 R15: 0000000000000000
> Modules linked in: ppp_deflate cfg80211 rfkill 8021q garp stp mrp llc 
> ppp_async crc_ccitt ppp_generic slhc nfsd auth_rpcgss nfs_acl lockd 
> grace sunrpc xt_nat nft_chain_nat_ipv4 nf_nat_ipv4 nf_nat nf_conntrack 
> nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c ipt_REJECT nf_reject_ipv4 
> nft_limit xt_limit xt_tcpudp nft_compat x_tables nft_counter nf_tables 
> nfnetlink binfmt_misc bonding sch5636 sch56xx_common rc_it913x_v1 it913x 
> af9033 dvb_usb_af9035 dvb_usb_v2 dvb_core rc_core snd_hda_codec_hdmi 
> snd_hda_codec_conexant snd_hda_codec_generic intel_rapl i915 
> x86_pkg_temp_thermal snd_hda_intel intel_powerclamp snd_hda_codec 
> coretemp snd_hda_core snd_hwdep snd_pcm xhci_pci ehci_pci ahci snd_timer 
> xhci_hcd drm_kms_helper ehci_hcd libahci kvm snd mei_wdt tg3 iTCO_wdt 
> irqbypass mei_me e1000e drm libata usbcore
>   iTCO_vendor_support soundcore lpc_ich libphy mei i2c_algo_bit 
> usb_common mfd_core crct10dif_pclmul crc32_pclmul ppdev 
> ghash_clmulni_intel sg i2c_i801 intel_cstate evdev intel_uncore 
> pcc_cpufreq video parport_pc button intel_rapl_perf pcspkr parport ext4 
> crc16 mbcache jbd2 crc32c_generic fscrypto ecb sd_mod crc32c_intel 
> aacraid aesni_intel aes_x86_64 crypto_simd scsi_mod cryptd glue_helper 
> thermal fan
> CR2: 0000000000000008
> ---[ end trace 1f0672175c6e1ff0 ]---
> RIP: 0010:unmap_page_range+0x55d/0xa60
> Code: ff 83 ac 84 80 00 00 00 01 e8 4f 2b 01 00 49 8b 07 f6 c4 80 0f 84 
> 0e 03 00 00 4c 89 ff e8 6b 91 fe ff 85 c0 0f 88 e6 02 00 00 <49> 8b 46 
> 28 8b 50 08 8d 4a 01 89 48 08 4c 89 7c d0 10 3b 48 0c 0f
> RSP: 0018:ffff9c3a43a67cd0 EFLAGS: 00010202
> RAX: 0000000000000004 RBX: ffff8e2f47a0deb0 RCX: 0000000000000001
> RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8e2f7dd20000
> RBP: 00007f9f121d7000 R08: 0000000000000000 R09: ffff8e2f6a6e09c0
> R10: ffff8e2f9e5df000 R11: 0000000000000000 R12: 00007f9f121d6000
> R13: 000000081e49f025 R14: ffff9c3a43a67dd0 R15: ffffd073a07927c0
> FS:  0000000000000000(0000) GS:ffff8e2f7e140000(0000) knlGS:0000000000000000
> CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: 00007faa2eaa99ac CR3: 000000015020a003 CR4: 00000000000606e0
> Fixing recursive fault but reboot is needed!
> 
> ============================================
> 
> This is not the first time, so I suspect a persistent problem. I have no 
> idea how to look for the solution. Any suggestions??
> Just in case:
> 
> ============================================
> 
> # lspci
> 00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor 
> Family DRAM Controller (rev 09)
> 00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core 
> Processor Family PCI Express Root Port (rev 09)
> 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core 
> Processor Family Integrated Graphics Controller (rev 09)
> 00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset 
> Family USB xHCI Host Controller (rev 04)
> 00:16.0 Communication controller: Intel Corporation 7 Series/C216 
> Chipset Family MEI Controller #1 (rev 04)
> 00:16.3 Serial controller: Intel Corporation 7 Series/C210 Series 
> Chipset Family KT Controller (rev 04)
> 00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network 
> Connection (rev 04)
> 00:1a.0 USB controller: Intel Corporation 7 Series/C216 Chipset Family 
> USB Enhanced Host Controller #2 (rev 04)
> 00:1b.0 Audio device: Intel Corporation 7 Series/C216 Chipset Family 
> High Definition Audio Controller (rev 04)
> 00:1c.0 PCI bridge: Intel Corporation 7 Series/C216 Chipset Family PCI 
> Express Root Port 1 (rev c4)
> 00:1d.0 USB controller: Intel Corporation 7 Series/C216 Chipset Family 
> USB Enhanced Host Controller #1 (rev 04)
> 00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev a4)
> 00:1f.0 ISA bridge: Intel Corporation Q77 Express Chipset LPC Controller 
> (rev 04)
> 00:1f.2 SATA controller: Intel Corporation 7 Series/C210 Series Chipset 
> Family 6-port SATA Controller [AHCI mode] (rev 04)
> 00:1f.3 SMBus: Intel Corporation 7 Series/C216 Chipset Family SMBus 
> Controller (rev 04)
> 00:1f.6 Signal processing controller: Intel Corporation 7 Series/C210 
> Series Chipset Family Thermal Management Controller (rev 04)
> 01:00.0 RAID bus controller: Adaptec Series 7 6G SAS/PCIe 3 (rev 01)
> 02:00.0 Ethernet controller: Broadcom Limited NetXtreme BCM5719 Gigabit 
> Ethernet PCIe (rev 01)
> 02:00.1 Ethernet controller: Broadcom Limited NetXtreme BCM5719 Gigabit 
> Ethernet PCIe (rev 01)
> 02:00.2 Ethernet controller: Broadcom Limited NetXtreme BCM5719 Gigabit 
> Ethernet PCIe (rev 01)
> 02:00.3 Ethernet controller: Broadcom Limited NetXtreme BCM5719 Gigabit 
> Ethernet PCIe (rev 01)
> 

How often does this happen? Does it happen only on high load? I'm asking
because you might boot live system with newest kernel possible to see
if this will happen. Also you can simply try with backported kernel
5.9.6.

Does the system crash?

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#229869

On 12/20/20 10:22 PM, Marko Randjelovic wrote:
 > How often does this happen?

Not too often, once per few days.

Does it happen only on high load?

Difficult to say, rather not.

 > I'm asking
 > because you might boot live system with newest kernel possible to see
 > if this will happen. Also you can simply try with backported kernel
 > 5.9.6.

Thanks for the tip

btw I think it started after installing HPE Ethernet 1Gb 4-port 331T 
Adapter. This is server adapter end requires PCIe pin B5 and B6 covering 
to disconnect SMBus

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#229872

Grzesiek Sójka wrote:

> btw I think it started after installing HPE Ethernet 1Gb 4-port 331T
> Adapter. This is server adapter end requires PCIe pin B5 and B6 covering
> to disconnect SMBus

come on, this is important and you did not mention it! Shame on you :)

now try removing the card and see if it is happening again.

Why would you disconnect SMBus?

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