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Date: Fri, 30 Sep 2022 20:57:39 +0800
From: kernel test robot <yujie.liu@...el.com>
To: Jens Axboe <axboe@...nel.dk>
CC: <lkp@...ts.01.org>, <lkp@...el.com>,
<linux-fsdevel@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [eventpoll] ee22f2b4c8: kernel_BUG_at_arch/x86/mm/physaddr.c
Greeting,
FYI, we noticed the following commit (built with clang-14):
commit: ee22f2b4c8bfb80724a63e691b94413144cfdae2 ("eventpoll: add support for min-wait")
https://git.kernel.org/cgit/linux/kernel/git/axboe/linux-block.git io_uring-min_ts
in testcase: boot
on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
[ 252.128536][ T165] ------------[ cut here ]------------
[ 252.130894][ T165] kernel BUG at arch/x86/mm/physaddr.c:28!
[ 252.132812][ T165] invalid opcode: 0000 [#1] SMP KASAN PTI
[ 252.134687][ T165] CPU: 1 PID: 165 Comm: udevd Tainted: G B 6.0.0-rc2-00005-gee22f2b4c8bf #1 490456e38aa169273f99858be072300186fb46bb
[ 252.138472][ T165] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.0-debian-1.16.0-4 04/01/2014
[ 252.141568][ T165] RIP: 0010:__phys_addr+0x1a7/0x1b8
[ 252.143544][ T165] Code: c7 c7 80 ac ad 85 4c 89 fe 4c 89 f2 e8 91 61 a1 01 e9 2f ff ff ff e8 68 31 3d 00 eb 05 e8 61 31 3d 00 48 ff 05 d2 8d 90 05 90 <0f> 0b e8 52 31 3d 00 48 ff 05 ab 8d 90 05 90 0f 0b 0f 1f 44 00 00
[ 252.149297][ T165] RSP: 0018:ffffc900010afce8 EFLAGS: 00010202
[ 252.151195][ T165] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffffffff877f6770
[ 252.153770][ T165] RDX: 0000000000000000 RSI: ffff8881bf855280 RDI: 0000000000000002
[ 252.156440][ T165] RBP: ffffc900010afd00 R08: ffff8881bf8a5102 R09: 000000008010000e
[ 252.162892][ T165] R10: fffffbfff0ceb2e6 R11: dffff7fff0ceb2e7 R12: 000effff8881bf8a
[ 252.165559][ T165] R13: 000000000000008f R14: 000f00000881bf8a R15: 000f777f8881bf8a
[ 252.171522][ T165] FS: 00007fee8c079300(0000) GS:ffff8883aed00000(0000) knlGS:0000000000000000
[ 252.174412][ T165] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 252.176331][ T165] CR2: 00007f153af4f7b4 CR3: 0000000117a8c000 CR4: 00000000000006e0
[ 252.178931][ T165] Call Trace:
[ 252.180227][ T165] <TASK>
[ 252.181469][ T165] qlink_to_cache+0x1f/0xab
[ 252.183135][ T165] qlist_free_all+0x40/0x83
[ 252.184770][ T165] kasan_quarantine_reduce+0x13d/0x14a
[ 252.186596][ T165] __kasan_slab_alloc+0x30/0x94
[ 252.188276][ T165] ? __llvm_gcov_reset+0x1031/0x1070
[ 252.190080][ T165] kmem_cache_alloc+0x313/0x46f
[ 252.191851][ T165] ? getname_flags+0x63/0x3f8
[ 252.193488][ T165] getname_flags+0x63/0x3f8
[ 252.195015][ T165] __se_sys_unlink+0x2c/0x45
[ 252.196584][ T165] __x64_sys_unlink+0x44/0x47
[ 252.198182][ T165] do_syscall_64+0x7b/0xb7
[ 252.200095][ T165] ? syscall_exit_to_user_mode+0xd1/0xfb
[ 252.201727][ T165] ? do_syscall_64+0x88/0xb7
[ 252.203363][ T165] ? do_syscall_64+0x88/0xb7
[ 252.204989][ T165] ? do_syscall_64+0x88/0xb7
[ 252.206611][ T165] ? sysvec_apic_timer_interrupt+0x57/0x9e
[ 252.208433][ T165] entry_SYSCALL_64_after_hwframe+0x5e/0xc8
[ 252.210401][ T165] RIP: 0033:0x7fee8c1873f7
[ 252.212191][ T165] Code: f0 ff ff 73 01 c3 48 8b 0d 96 8a 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 57 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 69 8a 0c 00 f7 d8 64 89 01 48
[ 252.217680][ T165] RSP: 002b:00007fff06d01e18 EFLAGS: 00000202 ORIG_RAX: 0000000000000057
[ 252.220369][ T165] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fee8c1873f7
[ 252.222891][ T165] RDX: 0000000000000000 RSI: 000000000ef5f4c0 RDI: 000055915b1fea21
[ 252.225464][ T165] RBP: 00000000ffffffff R08: 431bde82d7b634db R09: 00007fff06d7c0b8
[ 252.228053][ T165] R10: 000000000000840e R11: 0000000000000202 R12: 0000000000000000
[ 252.230614][ T165] R13: 000055915b1fe828 R14: 0000000000000000 R15: 0000000000000000
[ 252.233057][ T165] </TASK>
[ 252.234305][ T165] Modules linked in: mousedev ppdev parport_pc input_leds psmouse parport evbug
[ 252.237669][ T165] ---[ end trace 0000000000000000 ]---
[ 252.239650][ T165] RIP: 0010:__phys_addr+0x1a7/0x1b8
[ 252.241681][ T165] Code: c7 c7 80 ac ad 85 4c 89 fe 4c 89 f2 e8 91 61 a1 01 e9 2f ff ff ff e8 68 31 3d 00 eb 05 e8 61 31 3d 00 48 ff 05 d2 8d 90 05 90 <0f> 0b e8 52 31 3d 00 48 ff 05 ab 8d 90 05 90 0f 0b 0f 1f 44 00 00
[ 252.248012][ T165] RSP: 0018:ffffc900010afce8 EFLAGS: 00010202
[ 252.249967][ T165] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffffffff877f6770
[ 252.252528][ T165] RDX: 0000000000000000 RSI: ffff8881bf855280 RDI: 0000000000000002
[ 252.255124][ T165] RBP: ffffc900010afd00 R08: ffff8881bf8a5102 R09: 000000008010000e
[ 252.257962][ T165] R10: fffffbfff0ceb2e6 R11: dffff7fff0ceb2e7 R12: 000effff8881bf8a
[ 252.260362][ T165] R13: 000000000000008f R14: 000f00000881bf8a R15: 000f777f8881bf8a
[ 252.262982][ T165] FS: 00007fee8c079300(0000) GS:ffff8883aed00000(0000) knlGS:0000000000000000
[ 252.265811][ T165] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 252.268148][ T165] CR2: 00007f153af4f7b4 CR3: 0000000117a8c000 CR4: 00000000000006e0
[ 252.270703][ T165] Kernel panic - not syncing: Fatal exception
[ 252.272981][ T165] Kernel Offset: disabled
If you fix the issue, kindly add following tag
| Reported-by: kernel test robot <yujie.liu@...el.com>
| Link: https://lore.kernel.org/r/202209302013.dd5b88c0-yujie.liu@intel.com
Please be noted that this may be a low confidence report since we only
have 1/3 chance to reproduce the problem by multiple runs, and we didn't
find clear relation between the code change and dmesg call trace. If
this is not a real issue, please kindly ignore this report. Thanks.
To reproduce:
# build kernel
cd linux
cp config-6.0.0-rc2-00005-gee22f2b4c8bf .config
make HOSTCC=clang-14 CC=clang-14 ARCH=x86_64 olddefconfig prepare modules_prepare bzImage modules
make HOSTCC=clang-14 CC=clang-14 ARCH=x86_64 INSTALL_MOD_PATH=<mod-install-dir> modules_install
cd <mod-install-dir>
find lib/ | cpio -o -H newc --quiet | gzip > modules.cgz
git clone https://github.com/intel/lkp-tests.git
cd lkp-tests
bin/lkp qemu -k <bzImage> -m modules.cgz job-script # job-script is attached in this email
# if come across any failure that blocks the test,
# please remove ~/.lkp and /lkp dir to run from a clean state.
--
0-DAY CI Kernel Test Service
https://01.org/lkp
View attachment "config-6.0.0-rc2-00005-gee22f2b4c8bf" of type "text/plain" (155011 bytes)
View attachment "job-script" of type "text/plain" (4755 bytes)
Download attachment "dmesg.xz" of type "application/x-xz" (37676 bytes)
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