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Date: Mon, 24 Dec 2018 06:19:32 +0800
From: kernel test robot <lkp@...el.com>
To: Alexandre Belloni <alexandre.belloni@...tlin.com>
Cc: LKML <linux-kernel@...r.kernel.org>,
Stephen Rothwell <sfr@...b.auug.org.au>, lkp@...org
Subject: [rtc] 461e557b97: general_protection_fault:#[##]
FYI, we noticed the following commit (built with gcc-6):
commit: 461e557b97277b693cd8008c32a9d01c7f8f453b ("rtc: nvmem: use devm_nvmem_register()")
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 8G
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
+------------------------------------------+------------+------------+
| | b28cc6cec3 | 461e557b97 |
+------------------------------------------+------------+------------+
| boot_successes | 38 | 6 |
| boot_failures | 0 | 11 |
| general_protection_fault:#[##] | 0 | 10 |
| RIP:kernfs_name_hash | 0 | 11 |
| Kernel_panic-not_syncing:Fatal_exception | 0 | 11 |
| BUG:unable_to_handle_kernel | 0 | 1 |
| Oops:#[##] | 0 | 1 |
+------------------------------------------+------------+------------+
[ 109.608578] serio: i8042 KBD port at 0x60,0x64 irq 1
[ 109.619447] serio: i8042 AUX port at 0x60,0x64 irq 12
[ 109.772717] rtc_cmos 00:00: RTC can wake from S4
[ 109.902360] rtc_cmos 00:00: registered as rtc0
[ 109.942570] rtc_cmos 00:00: alarms up to one day, y3k, 114 bytes nvram, hpet irqs
[ 109.954719] general protection fault: 0000 [#1] PREEMPT SMP PTI
[ 109.958901] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G T 4.20.0-rc1-00009-g461e557 #1
[ 109.958901] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
[ 109.958901] RIP: 0010:kernfs_name_hash+0x13/0x77
[ 109.958901] Code: 36 c2 81 74 04 48 8b 77 40 48 89 df e8 ea 9f 37 00 5a 5b 41 5c 5d c3 55 31 c0 48 89 e5 53 51 48 89 75 f0 48 83 c9 ff 48 89 fb <f2> ae 48 f7 d1 8d 79 ff 31 c9 48 39 cf 74 1f 48 0f be 04 0b 48 ff
[ 109.958901] RSP: 0000:ffff880107c6bbd0 EFLAGS: 00010286
[ 109.958901] RAX: 0000000000000000 RBX: 00306d6172766e5f RCX: ffffffffffffffff
[ 109.958901] RDX: ffffffff81e48650 RSI: 0000000000000000 RDI: 00306d6172766e5f
[ 109.958901] RBP: ffff880107c6bbe0 R08: 0000000000000002 R09: 0000000000000000
[ 109.958901] R10: ffff880107c6bc10 R11: 0000000000000000 R12: 00306d6172760000
[ 109.958901] R13: 00306d6172766e5f R14: 0000000000000000 R15: ffff880107e8c8a0
[ 109.958901] FS: 0000000000000000(0000) GS:ffff880237800000(0000) knlGS:0000000000000000
[ 109.958901] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 109.958901] CR2: 0000000000000000 CR3: 0000000001e12000 CR4: 00000000000406b0
[ 109.958901] Call Trace:
[ 109.958901] kernfs_find_ns+0x8d/0xd7
[ 109.958901] kernfs_remove_by_name_ns+0x48/0x74
[ 109.958901] sysfs_remove_bin_file+0x15/0x1a
[ 109.958901] rtc_nvmem_unregister+0x1d/0x20
[ 109.958901] devm_rtc_release_device+0x10/0x2b
[ 109.958901] release_nodes+0x143/0x166
[ 109.958901] devres_release_all+0x3f/0x42
[ 109.958901] really_probe+0x184/0x43b
[ 109.958901] driver_probe_device+0xd3/0x109
[ 109.958901] __driver_attach+0xbb/0xed
[ 109.958901] ? driver_probe_device+0x109/0x109
[ 109.958901] bus_for_each_dev+0x64/0x84
[ 109.958901] driver_attach+0x1d/0x20
[ 109.958901] bus_add_driver+0x12e/0x215
[ 109.958901] ? abb5zes3_driver_init+0x3e/0x3e
[ 109.958901] driver_register+0x9e/0xd5
[ 109.958901] ? abb5zes3_driver_init+0x3e/0x3e
[ 109.958901] pnp_register_driver+0x1d/0x20
[ 109.958901] cmos_init+0x29/0x124
[ 109.958901] do_one_initcall+0x64/0x13a
[ 109.958901] kernel_init_freeable+0x1f5/0x312
[ 109.958901] ? rest_init+0xf1/0xf1
[ 109.958901] kernel_init+0x9/0xf5
[ 109.958901] ret_from_fork+0x1f/0x30
[ 109.958901] Modules linked in:
[ 110.136281] _warn_unseeded_randomness: 532 callbacks suppressed
[ 110.136448] random: get_random_bytes called from init_oops_id+0x21/0x32 with crng_init=0
[ 110.146604] ---[ end trace efccaee9b41f1345 ]---
[ 110.168116] RIP: 0010:kernfs_name_hash+0x13/0x77
[ 110.172161] Code: 36 c2 81 74 04 48 8b 77 40 48 89 df e8 ea 9f 37 00 5a 5b 41 5c 5d c3 55 31 c0 48 89 e5 53 51 48 89 75 f0 48 83 c9 ff 48 89 fb <f2> ae 48 f7 d1 8d 79 ff 31 c9 48 39 cf 74 1f 48 0f be 04 0b 48 ff
[ 110.201209] RSP: 0000:ffff880107c6bbd0 EFLAGS: 00010286
[ 110.204379] RAX: 0000000000000000 RBX: 00306d6172766e5f RCX: ffffffffffffffff
[ 110.222891] RDX: ffffffff81e48650 RSI: 0000000000000000 RDI: 00306d6172766e5f
[ 110.229003] RBP: ffff880107c6bbe0 R08: 0000000000000002 R09: 0000000000000000
[ 110.247797] R10: ffff880107c6bc10 R11: 0000000000000000 R12: 00306d6172760000
[ 110.252327] R13: 00306d6172766e5f R14: 0000000000000000 R15: ffff880107e8c8a0
[ 110.270803] FS: 0000000000000000(0000) GS:ffff880237800000(0000) knlGS:0000000000000000
[ 110.277399] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 110.287149] CR2: 0000000000000000 CR3: 0000000001e12000 CR4: 00000000000406b0
[ 110.295061] Kernel panic - not syncing: Fatal exception
[ 110.304734] Kernel Offset: disabled
Elapsed time: 120
To reproduce:
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-4.20.0-rc1-00009-g461e557" of type "text/plain" (111786 bytes)
View attachment "job-script" of type "text/plain" (4330 bytes)
Download attachment "dmesg.xz" of type "application/x-xz" (10004 bytes)
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