Public bug reported:
[System Information]
- Hardware: Intel Core Ultra 9 285K / MSI MAG Z890 TOMAHAWK WIFI
- GPU: NVIDIA GeForce RTX 5090 (Driver 580.173.02)
- OS: Ubuntu 24.04.4 LTS (Noble Numbat)
- Kernel Version: 6.8.0-136-generic & 6.8.0-137-generic
[Problem Description]
When running video encoding workloads with libvpx-vp9 (4-channel yuva420p
transparent encoding), the system encounters a severe Linux kernel page table
corruption and hard panic.
[Kernel Log Output from Physical Monitor]
enc0:0:libvpx-v: Corrupted page table at address 7c1bec120fc0
PGD 1e21d7067 P4D 1e21d7067 PUD 1ce3bb067 PTE 80000001f3229867
[1750.348316] Bad page table: 000f [#4] PREEMPT SMP NOPTI
[1750.348565] CPU: 3 PID: 4528 Comm: enc0:0:libvpx-v Tainted: G D OE
6.8.0-136-generic #136-Ubuntu
[1750.348716] Hardware name: Micro-Star International Co., Ltd. MS-7E32/MAG
Z890 TOMAHAWK WIFI (MS-7E32), BIOS 1.A90 06/24/2025
...
ffmpeg[6005]: segfault at 0 in 00000000012cfe64 sp 00007e9c16499fd8 error 4 in
ffmpeg
[Expected Behavior]
libvpx-vp9 CPU encoding should complete without triggering a kernel "Bad page
table" page fault panic on Intel Arrow Lake (Z890) platform.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2163009
Title:
Kernel panic: "BUG: Bad page table: 000f" / "Corrupted page table" in
enc0:0:libvpx-v on Intel Core Ultra 9 285K (Z890)
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