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Message-ID: <20200702090722.GI3874@shao2-debian>
Date: Thu, 2 Jul 2020 17:07:22 +0800
From: kernel test robot <lkp@...el.com>
To: Masahiro Yamada <masahiroy@...nel.org>
Cc: Sami Tolvanen <samitolvanen@...gle.com>,
Steven Rostedt <rostedt@...dmis.org>,
LKML <linux-kernel@...r.kernel.org>, lkp@...ts.01.org
Subject: [kbuild] 8e9417d856:
WARNING:at_kernel/trace/trace.c:#run_tracer_selftest
Greeting,
FYI, we noticed the following commit (built with gcc-9):
commit: 8e9417d8562c89b62d4c939ec6b016c54d16cc8d ("kbuild: introduce ccflags-remove-y and asflags-remove-y")
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master
in testcase: trinity
with following parameters:
runtime: 300s
test-description: Trinity is a linux system call fuzz tester.
test-url: http://codemonkey.org.uk/projects/trinity/
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):
+-------------------------------------------------------------------------------+------------+------------+
| | f80bb31b95 | 8e9417d856 |
+-------------------------------------------------------------------------------+------------+------------+
| boot_successes | 30 | 0 |
| boot_failures | 2 | 34 |
| page_allocation_failure:order:#,mode:#(GFP_NOWAIT|__GFP_COMP),nodemask=(null) | 1 | |
| Mem-Info | 1 | |
| WARNING:at_kernel/rcu/rcutorture.c:#rcutorture_oom_notify | 1 | |
| RIP:rcutorture_oom_notify | 1 | |
| canonical_address#:#[##] | 1 | |
| RIP:rcu_torture_fwd_cb_hist | 1 | |
| Kernel_panic-not_syncing:Fatal_exception | 1 | |
| BUG:kernel_hang_in_boot_stage | 1 | 12 |
| WARNING:at_kernel/trace/trace.c:#run_tracer_selftest | 0 | 34 |
| RIP:run_tracer_selftest | 0 | 34 |
| WARNING:at_kernel/trace/trace.c:#init_trace_selftests | 0 | 34 |
| RIP:init_trace_selftests | 0 | 34 |
| WARNING:at_kernel/trace/ftrace.c:#ftrace_init_array_ops | 0 | 34 |
| RIP:ftrace_init_array_ops | 0 | 34 |
| IP-Config:Auto-configuration_of_network_failed | 0 | 22 |
| WARNING:stack_going_in_the_wrong_direction?at_wake_up_q/0x | 0 | 3 |
+-------------------------------------------------------------------------------+------------+------------+
If you fix the issue, kindly add following tag
Reported-by: kernel test robot <lkp@...el.com>
[ 5.396774] WARNING: CPU: 0 PID: 1 at kernel/trace/trace.c:1814 run_tracer_selftest+0x23d/0x2f8
[ 5.396802] Modules linked in:
[ 5.396858] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.8.0-rc2-00006-g8e9417d8562c8 #1
[ 5.396886] RIP: 0010:run_tracer_selftest+0x23d/0x2f8
[ 5.396911] Code: 11 01 4c 89 2d b1 08 d3 01 41 89 c4 85 c0 74 33 48 c7 c7 60 0b 6d 82 48 ff 05 7c 67 d2 02 e8 ae 0a f1 ff 48 ff 05 80 67 d2 02 <0f> 0b 48 ff 05 7f 67 d2 02 48 ff 05 80 67 d2 02 41 83 cc ff e9 98
[ 5.396923] RSP: 0000:ffffc9000001fdb8 EFLAGS: 00010202
[ 5.396950] RAX: 0000000000000007 RBX: ffffffff834802c0 RCX: 0000000000000000
[ 5.396963] RDX: 0000000000000000 RSI: 0000000000000004 RDI: fffff52000003fae
[ 5.396976] RBP: ffffffff83480362 R08: 0000000000000007 R09: 0000000000000000
[ 5.396989] R10: ffffed1020f96521 R11: ffff888107cb2907 R12: 00000000ffffffff
[ 5.397002] R13: ffffffff8349a1e0 R14: 0000000000000000 R15: ffffffff83968070
[ 5.397016] FS: 0000000000000000(0000) GS:ffff8883a2200000(0000) knlGS:0000000000000000
[ 5.397030] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5.397044] CR2: 0000000000000000 CR3: 0000000002e14000 CR4: 00000000000406b0
[ 5.397056] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 5.397068] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 5.397099] Call Trace:
[ 5.397111] init_trace_selftests+0xf4/0x274
[ 5.397123] ? latency_fsnotify_init+0x54/0x54
[ 5.397135] do_one_initcall+0x150/0x309
[ 5.397148] ? rcu_lock_acquire+0x22/0x22
[ 5.397161] ? add_sysfs_param+0x6a0/0x6b6
[ 5.397173] ? __kasan_kmalloc+0x83/0x94
[ 5.397187] ? test_bit+0x23/0x2e
[ 5.397200] kernel_init_freeable+0x34e/0x3d0
[ 5.397213] ? rest_init+0x122/0x122
[ 5.397225] kernel_init+0xd/0x116
[ 5.397237] ret_from_fork+0x22/0x30
[ 5.397250] ---[ end trace dd714b3d0679334d ]---
To reproduce:
# build kernel
cd linux
cp config-5.8.0-rc2-00006-g8e9417d8562c8 .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,
lkp
View attachment "config-5.8.0-rc2-00006-g8e9417d8562c8" of type "text/plain" (150024 bytes)
View attachment "job-script" of type "text/plain" (4417 bytes)
Download attachment "dmesg.xz" of type "application/x-xz" (16740 bytes)
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