Hello,
kernel test robot noticed
"Oops:general_protection_fault,probably_for_non-canonical_address#:#[##]SMP_KASAN_PTI"
on:
commit: 142f20971642be40507d3a0bc94e905e251db81a ("[PATCH 1/2] dma-buf: Add
__dma_fence_is_signaled()")
url:
https://github.com/intel-lab-lkp/linux/commits/Philipp-Stanner/dma-buf-dma-fence-Unify-return-codes-for-signalled-fences/20251125-184735
base: git://linuxtv.org/sailus/media_tree.git master
patch link:
https://lore.kernel.org/all/[email protected]/
patch subject: [PATCH 1/2] dma-buf: Add __dma_fence_is_signaled()
in testcase: lkvs
version: lkvs-x86_64-6505b18-1_20251124
with following parameters:
test: rapl-client
config: x86_64-rhel-9.4-func
compiler: gcc-14
test machine: 4 threads Intel(R) Core(TM) i5-6500 CPU @ 3.20GHz (Skylake) with
32G memory
(please refer to attached dmesg/kmsg for entire log/backtrace)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <[email protected]>
| Closes: https://lore.kernel.org/oe-lkp/[email protected]
[ 46.662293][ T179] i915 0000:00:02.0: vgaarb: VGA decodes changed:
olddecodes=io+mem,decodes=io+mem:owns=io+mem
[ 46.680656][ T40] sd 1:0:0:0: [sda] Preferred minimum I/O size 4096 bytes
[ 46.682302][ T59] i915 0000:00:02.0: Direct firmware load for
i915/skl_dmc_ver1_27.bin failed with error -2
[ 46.698362][ T59] i915 0000:00:02.0: [drm] Failed to load DMC firmware
i915/skl_dmc_ver1_27.bin (-ENOENT). Disabling runtime power management.
[ 46.711256][ T59] i915 0000:00:02.0: [drm] DMC firmware homepage:
https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git
[ 46.725941][ T12] Oops: general protection fault, probably for
non-canonical address 0xdffffc01544551ba: 0000 [#1] SMP KASAN PTI
[ 46.725953][ T179] ------------[ cut here ]------------
[ 46.737600][ T12] KASAN: probably user-memory-access in range
[0x0000000aa22a8dd0-0x0000000aa22a8dd7]
[ 46.737612][ T12] CPU: 3 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G S
I 6.18.0-rc5-00236-g142f20971642 #1 PREEMPT(voluntary)
[ 46.742889][ T179] Fence 0000:00:02.0:[i915]:9:2 released with pending
signals!
[ 46.752212][ T12] Tainted: [S]=CPU_OUT_OF_SPEC, [I]=FIRMWARE_WORKAROUND
[ 46.752217][ T12] Hardware name: Dell Inc. OptiPlex 7040/0Y7WYT, BIOS
1.1.1 10/07/2015
[ 46.752220][ T12] Workqueue: i915 __i915_gem_free_work [i915]
[ 46.765216][ T179] WARNING: CPU: 0 PID: 179 at
drivers/dma-buf/dma-fence.c:555 dma_fence_release
(kbuild/src/consumer/drivers/dma-buf/dma-fence.c:555 (discriminator 1))
[ 46.772517][ T12]
[ 46.772521][ T12] RIP: 0010:__list_add_valid_or_report
(kbuild/src/consumer/lib/list_debug.c:29)
[ 46.772528][ T12] Code: 8b 98 fe 48 89 d3 48 85 d2 0f 84 af 8b 98 fe 4c 8d
62 08 48 89 fd 49 89 f5 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80>
3c 02 00 0f 85 b7 00 00 00 4c 39 6b 08 75 43 48 b8 00 00 00 00
All code
========
0: 8b 98 fe 48 89 d3 mov -0x2c76b702(%rax),%ebx
6: 48 85 d2 test %rdx,%rdx
9: 0f 84 af 8b 98 fe je 0xfffffffffe988bbe
f: 4c 8d 62 08 lea 0x8(%rdx),%r12
13: 48 89 fd mov %rdi,%rbp
16: 49 89 f5 mov %rsi,%r13
19: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
20: fc ff df
23: 4c 89 e2 mov %r12,%rdx
26: 48 c1 ea 03 shr $0x3,%rdx
2a:* 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <--
trapping instruction
2e: 0f 85 b7 00 00 00 jne 0xeb
34: 4c 39 6b 08 cmp %r13,0x8(%rbx)
38: 75 43 jne 0x7d
3a: 48 rex.W
3b: b8 00 00 00 00 mov $0x0,%eax
Code starting with the faulting instruction
===========================================
0: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1)
4: 0f 85 b7 00 00 00 jne 0xc1
a: 4c 39 6b 08 cmp %r13,0x8(%rbx)
e: 75 43 jne 0x53
10: 48 rex.W
11: b8 00 00 00 00 mov $0x0,%eax
[ 46.779267][ T179] Modules linked in:
[ 46.787293][ T12] RSP: 0018:ffffc9000010fac8 EFLAGS: 00010003
[ 46.787300][ T12] RAX: dffffc0000000000 RBX: 0000000aa22a8dcf RCX:
ffffffff82f5859d
[ 46.793179][ T179] platform_profile
[ 46.803018][ T12] RDX: 00000001544551ba RSI: ffff88884fde5c90 RDI:
ffffc9000010fb50
[ 46.803023][ T12] RBP: ffffc9000010fb50 R08: 0000000000000000 R09:
ffffed1109fbcb96
[ 46.803025][ T12] R10: ffff88884fde5cb7 R11: fefefefefefefeff R12:
0000000aa22a8dd7
[ 46.805219][ T179] sd_mod
[ 46.811413][ T12] R13: ffff88884fde5c90 R14: ffff88884fde5c90 R15:
0000000aa22a8dcf
[ 46.811417][ T12] FS: 0000000000000000(0000) GS:ffff888848e3e000(0000)
knlGS:0000000000000000
[ 46.811419][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 46.830755][ T179] intel_rapl_common
[ 46.834463][ T12] CR2: 00007f3bc83ae000 CR3: 0000000868388002 CR4:
00000000003726f0
[ 46.834467][ T12] Call Trace:
[ 46.834469][ T12] <TASK>
[ 46.840348][ T179] snd_hda_core
[ 46.848115][ T12] dma_fence_default_wait
(kbuild/src/consumer/include/linux/list.h:158 (discriminator 1)
kbuild/src/consumer/include/linux/list.h:177 (discriminator 1)
kbuild/src/consumer/drivers/dma-buf/dma-fence.c:800 (discriminator 1))
[ 46.851758][ T179] x86_pkg_temp_thermal
[ 46.859527][ T12] ? __pfx_dma_fence_default_wait
(kbuild/src/consumer/drivers/dma-buf/dma-fence.c:778)
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20251209/[email protected]
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
