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Date: Sun, 22 Nov 2020 23:29:25 +0800
From: kernel test robot <oliver.sang@...el.com>
To: Rick Edgecombe <rick.p.edgecombe@...el.com>
Cc: akpm@...ux-foundation.org, jeyu@...nel.org, bpf@...r.kernel.org,
ast@...nel.org, daniel@...earbox.net, luto@...nel.org,
dave.hansen@...ux.intel.com, peterz@...radead.org, x86@...nel.org,
rppt@...nel.org, linux-mm@...ck.org, linux-kernel@...r.kernel.org,
dan.j.williams@...el.com, elena.reshetova@...el.com,
ira.weiny@...el.com, Rick Edgecombe <rick.p.edgecombe@...el.com>,
0day robot <lkp@...el.com>, lkp@...ts.01.org
Subject: [vmalloc] 377647beed:
WARNING:at_arch/x86/kernel/ftrace.c:#ftrace_verify_code
Greeting,
FYI, we noticed the following commit (built with gcc-9):
commit: 377647beed53730bde5b15bcc49401f3c982bd45 ("[PATCH RFC 10/10] vmalloc: Add perm_alloc x86 implementation")
url: https://github.com/0day-ci/linux/commits/Rick-Edgecombe/New-permission-vmalloc-interface/20201121-043212
base: https://git.kernel.org/cgit/linux/kernel/git/bpf/bpf-next.git master
in testcase: boot
on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 8G
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
+---------------------------------------------------------+------------+------------+
| | bc80b28ef8 | 377647beed |
+---------------------------------------------------------+------------+------------+
| boot_successes | 4 | 0 |
| boot_failures | 0 | 4 |
| WARNING:at_arch/x86/kernel/ftrace.c:#ftrace_verify_code | 0 | 4 |
| RIP:ftrace_verify_code | 0 | 4 |
| WARNING:at_kernel/trace/ftrace.c:#ftrace_bug | 0 | 4 |
| RIP:ftrace_bug | 0 | 4 |
| BUG:unable_to_handle_page_fault_for_address | 0 | 3 |
| Oops:#[##] | 0 | 3 |
| RIP:strcmp | 0 | 3 |
| Kernel_panic-not_syncing:Fatal_exception | 0 | 3 |
+---------------------------------------------------------+------------+------------+
If you fix the issue, kindly add following tag
Reported-by: kernel test robot <oliver.sang@...el.com>
[ 6.656527] WARNING: CPU: 0 PID: 2897 at arch/x86/kernel/ftrace.c:90 ftrace_verify_code+0x2f/0x70
[ 6.658669] Modules linked in: sr_mod cdrom sg ata_generic
[ 6.660055] CPU: 0 PID: 2897 Comm: modprobe Not tainted 5.10.0-rc3-00842-g377647beed53 #1
[ 6.662003] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[ 6.664112] RIP: 0010:ftrace_verify_code+0x2f/0x70
[ 6.665391] Code: 00 48 89 f5 48 89 fe 48 83 ec 10 65 48 8b 04 25 28 00 00 00 48 89 44 24 08 31 c0 48 8d 7c 24 03 e8 b9 b9 13 00 48 85 c0 74 09 <0f> 0b b8 f2 ff ff ff eb 1d ba 05 00 00 00 48 89 ee 48 8d 7c 24 03
[ 6.669614] RSP: 0018:ffffc900002ebcd8 EFLAGS: 00010286
[ 6.669617] RAX: ffffffffffffffde RBX: 0000000000000000 RCX: ffffffef8103f45c
[ 6.669618] RDX: 0000800000000000 RSI: 0000000000000005 RDI: 000000100000090f
[ 6.669620] RBP: ffffffff82bf14a8 R08: 0000000000000000 R09: 0000000000000119
[ 6.669621] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffffa0030000
[ 6.669623] R13: ffff88811ded8000 R14: 0000000002000000 R15: 0000000000000001
[ 6.669625] FS: 00007fa2d3dea480(0000) GS:ffff88823fc00000(0000) knlGS:0000000000000000
[ 6.669627] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6.669628] CR2: 00007fa2d3f702b0 CR3: 000000011d576000 CR4: 00000000000406f0
[ 6.669632] Call Trace:
[ 6.669654] ? trace_clock_local+0xc/0x14
[ 6.669659] ftrace_modify_code_direct+0x10/0x4a
[ 6.669665] ftrace_process_locs+0x336/0x3a1
[ 6.669669] load_module+0xd46/0x1149
[ 6.669673] ? __kernel_read+0xfb/0x15f
[ 6.669677] ? kernel_read_file+0x132/0x1db
[ 6.669679] ? __do_sys_finit_module+0x94/0xbb
[ 6.669681] __do_sys_finit_module+0x94/0xbb
[ 6.669684] do_syscall_64+0x33/0x40
[ 6.669687] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 6.669690] RIP: 0033:0x7fa2d3f04f59
[ 6.669694] Code: 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 07 6f 0c 00 f7 d8 64 89 01 48
[ 6.669696] RSP: 002b:00007ffd79a85538 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[ 6.669698] RAX: ffffffffffffffda RBX: 000055b509cbfbc0 RCX: 00007fa2d3f04f59
[ 6.669699] RDX: 0000000000000000 RSI: 000055b509cb43f0 RDI: 0000000000000003
[ 6.669701] RBP: 000055b509cb43f0 R08: 0000000000000000 R09: 000055b509cc1190
[ 6.669702] R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000
[ 6.669703] R13: 000055b509cbfb60 R14: 0000000000040000 R15: 000055b509cbfbc0
[ 6.669709] CPU: 0 PID: 2897 Comm: modprobe Not tainted 5.10.0-rc3-00842-g377647beed53 #1
[ 6.669710] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[ 6.669711] Call Trace:
[ 6.669716] dump_stack+0x57/0x6a
[ 6.669719] __warn+0xbb/0xe7
[ 6.669724] ? ftrace_verify_code+0x2f/0x70
[ 6.669727] report_bug+0x96/0xd6
[ 6.669731] handle_bug+0x4f/0x6f
[ 6.669733] exc_invalid_op+0x14/0x61
[ 6.669736] asm_exc_invalid_op+0x12/0x20
[ 6.669739] RIP: 0010:ftrace_verify_code+0x2f/0x70
[ 6.669741] Code: 00 48 89 f5 48 89 fe 48 83 ec 10 65 48 8b 04 25 28 00 00 00 48 89 44 24 08 31 c0 48 8d 7c 24 03 e8 b9 b9 13 00 48 85 c0 74 09 <0f> 0b b8 f2 ff ff ff eb 1d ba 05 00 00 00 48 89 ee 48 8d 7c 24 03
[ 6.669742] RSP: 0018:ffffc900002ebcd8 EFLAGS: 00010286
[ 6.669744] RAX: ffffffffffffffde RBX: 0000000000000000 RCX: ffffffef8103f45c
[ 6.669746] RDX: 0000800000000000 RSI: 0000000000000005 RDI: 000000100000090f
[ 6.669747] RBP: ffffffff82bf14a8 R08: 0000000000000000 R09: 0000000000000119
[ 6.669748] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffffa0030000
[ 6.669750] R13: ffff88811ded8000 R14: 0000000002000000 R15: 0000000000000001
[ 6.669754] ? ftrace_verify_code+0x2a/0x70
[ 6.669756] ? trace_clock_local+0xc/0x14
[ 6.669758] ftrace_modify_code_direct+0x10/0x4a
[ 6.669761] ftrace_process_locs+0x336/0x3a1
[ 6.669764] load_module+0xd46/0x1149
[ 6.669766] ? __kernel_read+0xfb/0x15f
[ 6.669769] ? kernel_read_file+0x132/0x1db
[ 6.669772] ? __do_sys_finit_module+0x94/0xbb
[ 6.669773] __do_sys_finit_module+0x94/0xbb
[ 6.669776] do_syscall_64+0x33/0x40
[ 6.669778] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 6.669780] RIP: 0033:0x7fa2d3f04f59
[ 6.669782] Code: 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 07 6f 0c 00 f7 d8 64 89 01 48
[ 6.669783] RSP: 002b:00007ffd79a85538 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[ 6.669786] RAX: ffffffffffffffda RBX: 000055b509cbfbc0 RCX: 00007fa2d3f04f59
[ 6.669787] RDX: 0000000000000000 RSI: 000055b509cb43f0 RDI: 0000000000000003
[ 6.669788] RBP: 000055b509cb43f0 R08: 0000000000000000 R09: 000055b509cc1190
[ 6.669789] R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000
[ 6.669790] R13: 000055b509cbfb60 R14: 0000000000040000 R15: 000055b509cbfbc0
[ 6.669793] ---[ end trace 8b6008b88a57006f ]---
To reproduce:
# build kernel
cd linux
cp config-5.10.0-rc3-00842-g377647beed53 .config
make HOSTCC=gcc-9 CC=gcc-9 ARCH=x86_64 olddefconfig prepare modules_prepare bzImage
git clone https://github.com/intel/lkp-tests.git
cd lkp-tests
bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email
Thanks,
Oliver Sang
View attachment "config-5.10.0-rc3-00842-g377647beed53" of type "text/plain" (117452 bytes)
View attachment "job-script" of type "text/plain" (4642 bytes)
Download attachment "dmesg.xz" of type "application/x-xz" (14588 bytes)
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