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Bug#915674: i915 driver crash on kernel 4.18.0-3 (buster/testing)

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  Bug#915674: i915 driver crash on kernel 4.18.0-3 (buster/testing) Pedro MG Palmeiro <mgondium@gmail.com> - 2018-12-05 22:50 +0100
    Bug#915674: i915 driver crash on kernel 4.18.0-3 (buster/testing) Calin Dumitrescu <calin.dumitrescu@gmail.com> - 2018-12-08 14:40 +0100

#62660 — Bug#915674: i915 driver crash on kernel 4.18.0-3 (buster/testing)

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Package: linux-image-amd64
Version: 4.18.0-3-amd64 #1 SMP Debian 4.18.20-2 (2018-11-23) x86_64
GNU/Linux

i915 driver crashes at startup with kernel 4.18.0-3-amd64 (buster) on old
946GZ chipset, monitor goes out of sync both on X and consoles.
All good running 4.18.0-2-amd64.


(...)
[   11.827937] BUG: unable to handle kernel NULL pointer dereference at
0000000000000008
[   11.827945] PGD 0 P4D 0
[   11.827950] Oops: 0000 [#1] SMP PTI
[   11.827955] CPU: 2 PID: 429 Comm: systemd-udevd Not tainted
4.18.0-3-amd64 #1 Debian 4.18.20-2
[   11.827959] Hardware name: LENOVO 9632Y4A/LENOVO, BIOS 2OKT48AUS
11/13/2008
[   11.828043] RIP: 0010:gen4_render_ring_flush+0x55/0xf0 [i915]
[   11.828046] Code: 00 be 16 00 00 00 48 89 ef e8 87 fe ff ff 48 3d 00 f0
ff ff 77 69 89 18 c7 40 04 02 40 00 7a 48 8b 55 78 48 8b 92 10 02 00 00
<48> 8b 52 08 48 c7 40 0c 00 00 00 00 83 ca 04 89 50 08 48 8d 50 14
[   11.828085] RSP: 0018:ffffb5b140a4ba88 EFLAGS: 00010287
[   11.828089] RAX: ffffb5b150002000 RBX: 0000000002000002 RCX:
000000000001ff68
[   11.828092] RDX: 0000000000000000 RSI: 00000000000001a8 RDI:
0000000000000150
[   11.828096] RBP: ffff9a6ef570aac0 R08: 0000000000000001 R09:
0000000000000004
[   11.828099] R10: ffffb5b140a4ba58 R11: 0000000000000000 R12:
ffff9a6ef4da0000
[   11.828103] R13: ffff9a6ef7527600 R14: 0000000000000000 R15:
ffff9a6ef570aac0
[   11.828107] FS:  00007fdff69628c0(0000) GS:ffff9a6effd00000(0000)
knlGS:0000000000000000
[   11.828111] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.828114] CR2: 0000000000000008 CR3: 0000000138bd8000 CR4:
00000000000006e0
[   11.828117] Call Trace:
[   11.828159]  i915_request_alloc+0x243/0x360 [i915]
[   11.828197]  i915_gem_init+0x284/0x480 [i915]
[   11.828231]  i915_driver_load+0xb22/0xef0 [i915]
[   11.828239]  ? acpi_dev_found+0x5f/0x70
[   11.828244]  local_pci_probe+0x42/0xa0
[   11.828248]  ? pci_assign_irq+0x27/0x130
[   11.828252]  pci_device_probe+0x146/0x1b0
[   11.828258]  driver_probe_device+0x2fa/0x470
[   11.828266]  __driver_attach+0xdc/0x100
[   11.828269]  ? driver_probe_device+0x470/0x470
[   11.828273]  bus_for_each_dev+0x76/0xc0
[   11.828277]  ? klist_add_tail+0x3b/0x70
[   11.828281]  bus_add_driver+0x161/0x260
[   11.828285]  ? 0xffffffffc0c8e000
[   11.828288]  driver_register+0x5b/0xe0
[   11.828292]  ? 0xffffffffc0c8e000
[   11.828296]  do_one_initcall+0x46/0x1c8
[   11.828301]  ? _cond_resched+0x15/0x40
[   11.828305]  ? kmem_cache_alloc_trace+0x15d/0x1c0
[   11.828309]  ? do_init_module+0x22/0x201
[   11.828313]  do_init_module+0x5b/0x201
[   11.828317]  load_module.constprop.56+0x1649/0x1d80
[   11.828321]  ? vfs_read+0x113/0x130
[   11.828325]  ? vfs_read+0x113/0x130
[   11.828328]  ? __do_sys_finit_module+0xe9/0x110
[   11.828332]  __do_sys_finit_module+0xe9/0x110
[   11.828336]  do_syscall_64+0x55/0x110
[   11.828340]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   11.828344] RIP: 0033:0x7fdff73c6a79
[   11.828346] Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48
89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05
<48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d df 43 0c 00 f7 d8 64 89 01 48
[   11.828384] RSP: 002b:00007ffc05b6a8e8 EFLAGS: 00000246 ORIG_RAX:
0000000000000139
[   11.828389] RAX: ffffffffffffffda RBX: 000055b9075f5ba0 RCX:
00007fdff73c6a79
[   11.828393] RDX: 0000000000000000 RSI: 00007fdff72cccad RDI:
0000000000000012
[   11.828396] RBP: 00007fdff72cccad R08: 0000000000000000 R09:
0000000000000000
[   11.828399] R10: 0000000000000012 R11: 0000000000000246 R12:
0000000000000000
[   11.828403] R13: 000055b9075eb1c0 R14: 0000000000020000 R15:
000055b9075f5ba0
[   11.828406] Modules linked in: i915(+) ipt_REJECT nf_reject_ipv4
snd_hda_codec_analog cfg80211 snd_hda_codec_generic xt_comment xt_multiport
crc_ccitt rfkill nft_limit xt_limit snd_hda_intel xt_addrtype kvm_intel
snd_hda_codec xt_tcpudp snd_hda_core snd_hwdep video kvm nf_conntrack_ipv4
nf_defrag_ipv4 drm_kms_helper snd_pcm xt_conntrack tg3 snd_timer drm r8169
snd nft_compat libphy iTCO_wdt soundcore irqbypass iTCO_vendor_support mii
i2c_algo_bit floppy i2c_i801 nft_counter pcc_cpufreq button acpi_cpufreq
nf_conntrack_netbios_ns nf_conntrack_broadcast nf_nat_ftp nf_nat
nf_conntrack_ftp nf_conntrack nf_tables nfnetlink it87 hwmon_vid coretemp
parport_pc lp ip_tables x_tables f2fs crc32_generic xhci_pci xhci_hcd raid0
raid1 raid456 libcrc32c async_raid6_recov async_memcpy async_pq async_xor
xor async_tx
[   11.828473]  raid6_pq raid10 md_mod autofs4 ppdev parport sunrpc
rng_core sg arc4 ext4 crc16 mbcache jbd2 crc32c_generic fscrypto ecb
crypto_simd cryptd glue_helper aes_x86_64 binfmt_misc fuse cpuid usbhid
ohci_pci ohci_hcd hid_generic hid uas usb_storage sd_mod ata_generic evdev
ata_piix psmouse pcspkr libata ehci_pci uhci_hcd serio_raw ehci_hcd
scsi_mod lpc_ich usbcore usb_common
[   11.828514] CR2: 0000000000000008
[   11.828533] ---[ end trace 679f3a6d897b885c ]---
[   11.828572] RIP: 0010:gen4_render_ring_flush+0x55/0xf0 [i915]
[   11.828576] Code: 00 be 16 00 00 00 48 89 ef e8 87 fe ff ff 48 3d 00 f0
ff ff 77 69 89 18 c7 40 04 02 40 00 7a 48 8b 55 78 48 8b 92 10 02 00 00
<48> 8b 52 08 48 c7 40 0c 00 00 00 00 83 ca 04 89 50 08 48 8d 50 14
[   11.828614] RSP: 0018:ffffb5b140a4ba88 EFLAGS: 00010287
[   11.828618] RAX: ffffb5b150002000 RBX: 0000000002000002 RCX:
000000000001ff68
[   11.828622] RDX: 0000000000000000 RSI: 00000000000001a8 RDI:
0000000000000150
[   11.828626] RBP: ffff9a6ef570aac0 R08: 0000000000000001 R09:
0000000000000004
[   11.828629] R10: ffffb5b140a4ba58 R11: 0000000000000000 R12:
ffff9a6ef4da0000
[   11.828633] R13: ffff9a6ef7527600 R14: 0000000000000000 R15:
ffff9a6ef570aac0
[   11.828637] FS:  00007fdff69628c0(0000) GS:ffff9a6effd00000(0000)
knlGS:0000000000000000
[   11.828641] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.828644] CR2: 0000000000000008 CR3: 0000000138bd8000 CR4:
00000000000006e0
(...)

Incidently, reportbug on buster is also crashing after selecting the
package, sorry for any lack of details it would automatically provide.

Pedro

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#62685

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Package: src:linux
Followup-For: Bug #915674

I believe the same bug also triggers on Lenovo ThinkPad T410.
linux-image-4.18.0-3-amd64 crashes with a blank screen
while linux-image-4.18.0-2-amd64 works fine. See also #915641 .

CPU: Intel(R) Core(TM) i5 CPU       M 520  @ 2.40GHz
Video chipset :
00:02.0 VGA compatible controller [0300]: Intel Corporation Core Processor
Integrated Graphics Controller [8086:0046] (rev 02) (prog-if 00 [VGA
controller])
        Subsystem: Lenovo Core Processor Integrated Graphics Controller
[17aa:215a]
        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 27
        Region 0: Memory at f2000000 (64-bit, non-prefetchable) [size=4M]
        Region 2: Memory at d0000000 (64-bit, prefetchable) [size=256M]
        Region 4: I/O ports at 1800 [size=8]
        [virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
        Capabilities: <access denied>
        Kernel driver in use: i915
        Kernel modules: i915

kern.log :

[    0.000000] Linux version 4.18.0-3-amd64 (debian-kernel@lists.debian.org)
(gcc version 7.3.0 (Debian 7.3.0-30)) #1 SMP Debian 4.18.20-2 (2018-11-23)
[...]
[   20.396724] pci 0000:00:00.0: Intel HD Graphics Chipset
[   20.396823] pci 0000:00:00.0: detected gtt size: 2097152K total, 262144K
mappable
[   20.397362] pci 0000:00:00.0: detected 32768K stolen memory
[   20.397497] [drm] Replacing VGA console driver
[   20.398174] Console: switching to colour dummy device 80x25
[   20.400980] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[   20.400984] [drm] Driver supports precise vblank timestamp query.
[   20.401583] i915 0000:00:02.0: vgaarb: changed VGA decodes:
olddecodes=io+mem,decodes=io+mem:owns=io+mem
[   20.452326] [drm] RC6 disabled, disabling runtime PM support
[   20.453453] BUG: unable to handle kernel NULL pointer dereference at
0000000000000008
[   20.453457] PGD 0 P4D 0
[   20.453461] Oops: 0000 [#1] SMP PTI
[   20.453466] CPU: 3 PID: 406 Comm: systemd-udevd Not tainted
4.18.0-3-amd64 #1 Debian 4.18.20-2
[   20.453469] Hardware name: LENOVO 2537HN3/2537HN3, BIOS 6IET85WW (1.45 )
02/14/2013
[   20.453528] RIP: 0010:gen4_render_ring_flush+0x55/0xf0 [i915]
[   20.453530] Code: 00 be 16 00 00 00 48 89 ef e8 87 fe ff ff 48 3d 00 f0
ff ff 77 69 89 18 c7 40 04 02 40 00 7a 48 8b 55 78 48 8b 92 10 02 00 00
<48> 8b 52 08 48 c7 40 0c 00 00 00 00 83 ca 04 89 50 08 48 8d 50 14
[   20.453556] RSP: 0018:ffffa97281063a88 EFLAGS: 00010287
[   20.453559] RAX: ffffa972b0004000 RBX: 0000000002000022 RCX:
000000000001ff68
[   20.453562] RDX: 0000000000000000 RSI: 00000000000001a8 RDI:
0000000000000150
[   20.453564] RBP: ffff98346e1a1200 R08: 0000000000000001 R09:
0000000000000020
[   20.453567] R10: ffffa97281063a58 R11: 0000000000000000 R12:
ffff983470be0000
[   20.453569] R13: ffff9834716cf000 R14: 0000000000000000 R15:
ffff98346e1a1200
[   20.453572] FS:  00007feb328218c0(0000) GS:ffff98347bd80000(0000)
knlGS:0000000000000000
[   20.453575] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.453578] CR2: 0000000000000008 CR3: 000000022e4e4003 CR4:
00000000000206e0
[   20.453580] Call Trace:
[   20.453615]  i915_request_alloc+0x243/0x360 [i915]
[   20.453644]  i915_gem_init+0x284/0x480 [i915]
[   20.453670]  i915_driver_load+0xb22/0xef0 [i915]
[   20.453678]  ? mutex_lock+0xe/0x30
[   20.453683]  ? acpi_dev_found+0x5f/0x70
[   20.453688]  local_pci_probe+0x42/0xa0
[   20.453693]  ? pci_assign_irq+0x27/0x130
[   20.453696]  pci_device_probe+0x146/0x1b0
[   20.453702]  driver_probe_device+0x2fa/0x470
[   20.453705]  __driver_attach+0xdc/0x100
[   20.453709]  ? driver_probe_device+0x470/0x470
[   20.453712]  bus_for_each_dev+0x76/0xc0
[   20.453716]  ? klist_add_tail+0x3b/0x70
[   20.453719]  bus_add_driver+0x161/0x260
[   20.453723]  ? 0xffffffffc0f1c000
[   20.453725]  driver_register+0x5b/0xe0
[   20.453728]  ? 0xffffffffc0f1c000
[   20.453733]  do_one_initcall+0x46/0x1c8
[   20.453736]  ? _cond_resched+0x15/0x40
[   20.453741]  ? kmem_cache_alloc_trace+0x15d/0x1c0
[   20.453746]  ? do_init_module+0x22/0x201
[   20.453748]  do_init_module+0x5b/0x201
[   20.453751]  load_module.constprop.56+0x1649/0x1d80
[   20.453756]  ? vfs_read+0x113/0x130
[   20.453759]  ? vfs_read+0x113/0x130
[   20.453762]  ? __do_sys_finit_module+0xe9/0x110
[   20.453764]  __do_sys_finit_module+0xe9/0x110
[   20.453768]  do_syscall_64+0x55/0x110
[   20.453772]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   20.453775] RIP: 0033:0x7feb33285a79
[   20.453776] Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48
89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05
<48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d df 43 0c 00 f7 d8 64 89 01 48
[   20.453802] RSP: 002b:00007ffe27c1de18 EFLAGS: 00000246 ORIG_RAX:
0000000000000139
[   20.453806] RAX: ffffffffffffffda RBX: 000055f169921cf0 RCX:
00007feb33285a79
[   20.453808] RDX: 0000000000000000 RSI: 00007feb3318bcad RDI:
0000000000000011
[   20.453811] RBP: 00007feb3318bcad R08: 0000000000000000 R09:
0000000000000000
[   20.453813] R10: 0000000000000011 R11: 0000000000000246 R12:
0000000000000000
[   20.453816] R13: 000055f169916f00 R14: 0000000000020000 R15:
000055f169921cf0
[   20.453819] Modules linked in: i915(+) irqbypass snd_hda_intel
crct10dif_pclmul iwlwifi crc32_pclmul snd_hda_codec snd_hda_core
ghash_clmulni_intel wmi_bmof mxm_wmi snd_hwdep cfg80211 intel_cstate
snd_pcm sg thinkpad_acpi intel_uncore snd_timer nvram joydev snd tpm_tis
evdev tpm_tis_core pcspkr serio_raw drm_kms_helper tpm soundcore drm
rng_core rfkill iTCO_wdt iTCO_vendor_support intel_ips mei_me i2c_algo_bit
video ac button mei battery wmi pcc_cpufreq acpi_cpufreq parport_pc ppdev
lp parport ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 fscrypto ecb
btrfs zstd_decompress zstd_compress xxhash dm_mod raid10 raid456
async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq
libcrc32c crc32c_generic raid1 raid0 multipath linear md_mod sr_mod cdrom
sd_mod crc32c_intel aesni_intel aes_x86_64
[   20.453881]  crypto_simd cryptd glue_helper psmouse ahci firewire_ohci
libahci firewire_core crc_itu_t i2c_i801 libata ehci_pci sdhci_pci ehci_hcd
cqhci sdhci scsi_mod usbcore lpc_ich mmc_core usb_common e1000e thermal
[   20.453898] CR2: 0000000000000008
[   20.453901] ---[ end trace de540c164cf3a51f ]---
[   20.453931] RIP: 0010:gen4_render_ring_flush+0x55/0xf0 [i915]
[   20.453933] Code: 00 be 16 00 00 00 48 89 ef e8 87 fe ff ff 48 3d 00 f0
ff ff 77 69 89 18 c7 40 04 02 40 00 7a 48 8b 55 78 48 8b 92 10 02 00 00
<48> 8b 52 08 48 c7 40 0c 00 00 00 00 83 ca 04 89 50 08 48 8d 50 14
[   20.453959] RSP: 0018:ffffa97281063a88 EFLAGS: 00010287
[   20.453961] RAX: ffffa972b0004000 RBX: 0000000002000022 RCX:
000000000001ff68
[   20.453964] RDX: 0000000000000000 RSI: 00000000000001a8 RDI:
0000000000000150
[   20.453967] RBP: ffff98346e1a1200 R08: 0000000000000001 R09:
0000000000000020
[   20.453969] R10: ffffa97281063a58 R11: 0000000000000000 R12:
ffff983470be0000
[   20.453972] R13: ffff9834716cf000 R14: 0000000000000000 R15:
ffff98346e1a1200
[   20.453975] FS:  00007feb328218c0(0000) GS:ffff98347bd80000(0000)
knlGS:0000000000000000
[   20.453978] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.453980] CR2: 0000000000000008 CR3: 000000022e4e4003 CR4:
00000000000206e0

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