____i915_gem_object_get_pages() -> shmem_get_pages() crash in -git

[Ajay Garg]

Hi Jens.

Same issue at my side.

Have posted a patch at
https://lore.kernel.org/linux-mm/CAMZfGtUp6dkT4OWzLhL8whqNnXAbfVw5c6AQogHzY3bbM_k2Qw@mail.gmail.com/T/#m2189d135b9293de9b4a11362f0179c17b254d5ab

Will be great to hear back if it fixes things at your side too.


Thanks and Regards,
Ajay

On Thu, Nov 11, 2021 at 7:54 PM Jens Axboe <axboe at kernel.dk> wrote:
>
> Hi,
>
> Running -git as of a day or two ago on my laptop, and I've hit this resume
> crash a few times:
>
> OOM killer enabled.
> Restarting tasks ... done.
> thermal thermal_zone7: failed to read out thermal zone (-61)
> xfs filesystem being remounted at /run/systemd/unit-root/var/cache/private/fwupdmgr supports timestamps until 2038 (0x7fffffff)
> PM: suspend exit
> BUG: unable to handle page fault for address: fffffffffffffff4
> #PF: supervisor read access in kernel mode
> #PF: error_code(0x0000) - not-present page
> PGD 21360b067 P4D 21360b067 PUD 21360d067 PMD 0
> Oops: 0000 [#1] PREEMPT SMP
> CPU: 7 PID: 3687 Comm: Xorg Tainted: G S                5.15.0+ #12136
> Hardware name: LENOVO 20XWCTO1WW/20XWCTO1WW, BIOS N32ET72W (1.48 ) 10/08/2021
> RIP: 0010:shmem_read_mapping_page_gfp+0x53/0x90
> Code: af 75 5b 41 89 d0 6a 00 45 31 c9 b9 02 00 00 00 6a 00 48 8d 55 f0 4c 89 d7 e8 89 f6 ff ff 5a 85 c0 59 74 2b 48 98 48 89 45 f0 <48> 8b 10 f7 c2 00 00 80 00 48 c7 c2 fb ff ff ff 48 0f 45 c2 48 8b
> RSP: 0018:ffffa01940ec7c18 EFLAGS: 00010282
> RAX: fffffffffffffff4 RBX: 00000000000002f3 RCX: 0000000000000000
> RDX: 0000000000000000 RSI: ffffffffffffffff RDI: ffffffffaff0a3c0
> RBP: ffffa01940ec7c28 R08: 0000000000000000 R09: 0000000000000f00
> R10: 0000000000000002 R11: 0000000000000000 R12: 00000000001120d2
> R13: ffff8c6b0648a200 R14: ffff8c69a45472c0 R15: ffff8c69ba412c10
> FS:  00007ffae02f3a40(0000) GS:ffff8c6b8f7c0000(0000) knlGS:0000000000000000
> CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: fffffffffffffff4 CR3: 000000010efb5001 CR4: 0000000000570ee0
> PKRU: 55555554
> Call Trace:
>  <TASK>
>  shmem_get_pages+0x242/0x640 [i915]
>  ? drm_vma_node_allow+0xb7/0xe0 [drm]
>  ? drm_gem_handle_create_tail+0xca/0x1a0 [drm]
>  ____i915_gem_object_get_pages+0x20/0x50 [i915]
>  __i915_gem_object_get_pages+0x35/0x40 [i915]
>  i915_gem_set_domain_ioctl+0x255/0x2d0 [i915]
>  ? i915_gem_object_set_to_cpu_domain+0xb0/0xb0 [i915]
>  drm_ioctl_kernel+0xb4/0x140 [drm]
>  drm_ioctl+0x22d/0x440 [drm]
>  ? i915_gem_object_set_to_cpu_domain+0xb0/0xb0 [i915]
>  ? __fget_files+0x74/0xa0
>  __x64_sys_ioctl+0x8e/0xc0
>  do_syscall_64+0x35/0xb0
>  entry_SYSCALL_64_after_hwframe+0x44/0xae
> RIP: 0033:0x7ffae065350b
> Code: 0f 1e fa 48 8b 05 85 39 0d 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 55 39 0d 00 f7 d8 64 89 01 48
> RSP: 002b:00007ffe8b906c88 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
> RAX: ffffffffffffffda RBX: 00005611c921d0b0 RCX: 00007ffae065350b
> RDX: 00007ffe8b906cd4 RSI: 00000000400c645f RDI: 0000000000000011
> RBP: 00007ffe8b906d60 R08: 00005611ca9f7360 R09: 00005611cb62e920
> R10: 00005611c9167010 R11: 0000000000000246 R12: 00005611ca9f7360
> R13: 00005611c921d0c8 R14: 00007ffe8b906cd4 R15: 0000000000000011
>  </TASK>
> Modules linked in: rfcomm ccm cmac bnep iwlmvm mac80211 btusb btrtl binfmt_misc btbcm uvcvideo btintel bluetooth x86_pkg_temp_thermal videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common videodev nls_iso8859_1 intel_powerclamp mc coretemp ecdh_generic ecc libarc4 kvm_intel wmi_bmof iwlwifi snd_hda_codec_hdmi kvm snd_ctl_led snd_hda_codec_realtek snd_hda_codec_generic cfg80211 irqbypass snd_hda_intel snd_intel_dspcfg snd_hda_codec intel_cstate input_leds snd_hwdep thinkpad_acpi snd_hda_core serio_raw hid_multitouch nvram ledtrig_audio mei_me platform_profile snd_seq snd_pcm mei snd_timer processor_thermal_device_pci_legacy snd_seq_device intel_soc_dts_iosf processor_thermal_device processor_thermal_rfim snd ucsi_acpi typec_ucsi processor_thermal_mbox typec processor_thermal_rapl intel_rapl_common soundcore int3403_thermal int340x_thermal_zone int3400_thermal wmi acpi_thermal_rel acpi_pad sch_fq_codel msr ip_tables x_tables usbhid i915 hid_generic i2c_algo_bit
>  ttm drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops drm crct10dif_pclmul crc32_pclmul nvme ghash_clmulni_intel aesni_intel nvme_core intel_lpss_pci crypto_simd intel_lpss cryptd idma64 virt_dma video
> CR2: fffffffffffffff4
> ---[ end trace f26a0d7d10ef13d6 ]---
> RIP: 0010:shmem_read_mapping_page_gfp+0x53/0x90
> Code: af 75 5b 41 89 d0 6a 00 45 31 c9 b9 02 00 00 00 6a 00 48 8d 55 f0 4c 89 d7 e8 89 f6 ff ff 5a 85 c0 59 74 2b 48 98 48 89 45 f0 <48> 8b 10 f7 c2 00 00 80 00 48 c7 c2 fb ff ff ff 48 0f 45 c2 48 8b
> RSP: 0018:ffffa01940ec7c18 EFLAGS: 00010282
> RAX: fffffffffffffff4 RBX: 00000000000002f3 RCX: 0000000000000000
> RDX: 0000000000000000 RSI: ffffffffffffffff RDI: ffffffffaff0a3c0
> RBP: ffffa01940ec7c28 R08: 0000000000000000 R09: 0000000000000f00
> R10: 0000000000000002 R11: 0000000000000000 R12: 00000000001120d2
> R13: ffff8c6b0648a200 R14: ffff8c69a45472c0 R15: ffff8c69ba412c10
> FS:  00007ffae02f3a40(0000) GS:ffff8c6b8f7c0000(0000) knlGS:0000000000000000
> CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: fffffffffffffff4 CR3: 000000010efb5001 CR4: 0000000000570ee0
> PKRU: 55555554
>
> Ring a bell for anyone? This is an X1 gen9 laptop, intel graphics.
>
> --
> Jens Axboe
>