From: Alexey Kodanev <alexey.kodanev@oracle.com>
To: ltp@lists.linux.it
Subject: [LTP] new user to ltp
Date: Fri, 13 Nov 2015 13:36:46 +0300 [thread overview]
Message-ID: <5645BD3E.1040709@oracle.com> (raw)
In-Reply-To: <5645B10B.9030708@aqueos.com>
Hi,
On 11/13/2015 12:44 PM, Ghislain wrote:
> - vanilla 4.1.12 (lock_torture_re)
> Nov 9 10:12:53 62-210-125-37 kernel: [ 0.000000] Linux version
> 4.1.12 (root@buildjessie64.aqueos.net) (gcc version 4.9.2 (Debian
> 4.9.2-10) ) #1 SMP Mon Nov 9 09:16:13 CET 2015
> Nov 9 14:51:47 62-210-125-37 kernel: [16455.811285] Writes: Total:
> 191554485 Max/Min: 0/0 Fail: 0
> Nov 9 14:51:47 62-210-125-37 kernel: [16455.838665]
> spin_lock_irq-torture: Stopping lock_torture_stats
> Nov 9 14:51:47 62-210-125-37 kernel: [16455.864328] Writes: Total:
> 191554485 Max/Min: 0/0 Fail: 0
> Nov 9 14:51:47 62-210-125-37 kernel: [16455.888892]
> spin_lock_irq-torture:--- End of test: SUCCESS: nwriters_stress=8
> nreaders_stress=0 stat_interval=60 verbose=1 shuffle_interval=3
> stutter=5 shutdown_secs=0 onoff_interval=0 onoff_holdoff=0
> Nov 9 14:51:47 62-210-125-37 kernel: [16455.954404]
> rw_lock-torture:--- Start of test: nwriters_stress=4 nreaders_stress=4
> stat_interval=60 verbose=1 shuffle_interval=3 stutter=5
> shutdown_secs=0 onoff_interval=0 onoff_holdoff=0
> Nov 9 14:51:47 62-210-125-37 kernel: [16456.016119] rw_lock-torture:
> Creating torture_shuffle task
> Nov 9 14:51:48 62-210-125-37 kernel: [16456.048085] rw_lock-torture:
> Creating torture_stutter task
> Nov 9 14:51:48 62-210-125-37 kernel: [16456.048122] rw_lock-torture:
> torture_shuffle task started
> Nov 9 14:51:48 62-210-125-37 kernel: [16456.109988] rw_lock-torture:
> Creating lock_torture_writer task
> Nov 9 14:51:48 62-210-125-37 kernel: [16456.110020] rw_lock-torture:
> torture_stutter task started
> Nov 9 14:51:48 62-210-125-37 kernel: [16456.171992] rw_lock-torture:
> Creating lock_torture_reader task
> Nov 9 14:51:48 62-210-125-37 kernel: [16456.171996] rw_lock-torture:
> lock_torture_writer task started
> Nov 9 14:51:48 62-210-125-37 kernel: [16456.233841] rw_lock-torture:
> Creating lock_torture_writer task
> Nov 9 14:51:48 62-210-125-37 kernel: [16456.233870] rw_lock-torture:
> lock_torture_reader task started
> Nov 9 14:51:48 62-210-125-37 kernel: [16456.297098] rw_lock-torture:
> Creating lock_torture_reader task
> Nov 9 14:51:48 62-210-125-37 kernel: [16456.297127] rw_lock-torture:
> lock_torture_writer task started
>
This test on vanilla Linux kernel prior 4.2-rc1 can trigger kernel panic
(when running rw_lock_irq test-case).
Here is the fix in upstream:
commit f548d99ef4f5ec8f7080e88ad07c44d16d058ddc
Author: Alexey Kodanev <alexey.kodanev@oracle.com>
Date: Sat Mar 7 03:06:53 2015 +0300
locktorture: fix deadlock in 'rw_lock_irq' type
torture_rwlock_read_unlock_irq() must use read_unlock_irqrestore()
instead of write_unlock_irqrestore().
Thanks,
Alexey
prev parent reply other threads:[~2015-11-13 10:36 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-13 9:44 [LTP] new user to ltp Ghislain
2015-11-13 10:13 ` Cedric Hnyda
2015-11-13 10:59 ` Ghislain
2015-11-13 10:36 ` Alexey Kodanev [this message]
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