From: "Huang\, Ying" <ying.huang@intel.com>
To: Jan Kara <jack@suse.cz>
Cc: "Huang\, Ying" <ying.huang@intel.com>,
kernel test robot <xiaolong.ye@intel.com>,
"Theodore Ts'o" <tytso@mit.edu>, <linux-nvdimm@ml01.01.org>,
Dave Chinner <david@fromorbit.com>,
LKML <linux-kernel@vger.kernel.org>,
Ross Zwisler <ross.zwisler@linux.intel.com>,
<linux-ext4@vger.kernel.org>, <lkp@01.org>
Subject: Re: [LKP] [ext4] e2ae766c1b: BUG:sleeping_function_called_from_invalid_context_at_kernel/locking/rwsem.c
Date: Wed, 14 Dec 2016 11:11:09 +0800 [thread overview]
Message-ID: <87lgvjfbn6.fsf@yhuang-dev.intel.com> (raw)
In-Reply-To: <20161213114208.GF15362@quack2.suse.cz> (Jan Kara's message of "Tue, 13 Dec 2016 12:42:08 +0100")
Jan Kara <jack@suse.cz> writes:
> On Tue 13-12-16 09:27:51, Huang, Ying wrote:
>> Jan Kara <jack@suse.cz> writes:
>>
>> > On Mon 12-12-16 18:13:21, kernel test robot wrote:
>> >> FYI, we noticed the following commit:
>> >>
>> >> commit: e2ae766c1b030271b5099b25674e2131d1d1e8c1 ("ext4: convert DAX faults to iomap infrastructure")
>> >> https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git dev
>> >>
>> >> in testcase: nvml
>> >> with following parameters:
>> >>
>> >> group: vmem
>> >> test: pmem
>> >> nr_pmem: 1
>> >> fs: ext4
>> >> mount_option: dax
>> >>
>> >>
>> >>
>> >> on test machine: 64 threads Intel(R) Xeon(R) CPU E5-4650 0 @ 2.70GHz with 64G memory
>> >>
>> >> caused below changes:
>> >>
>> >>
>> >> +------------------------------------------------+------------+------------+
>> >> | | 96f8ba3dd6 | e2ae766c1b |
>> >> +------------------------------------------------+------------+------------+
>> >> | boot_successes | 2 | 2 |
>> >> | boot_failures | 2 | 2 |
>> >> | BUG:kernel_hang_in_test_stage | 2 | |
>> >> | WARNING:at_fs/sysfs/dir.c:#sysfs_warn_dup | 0 | 2 |
>> >> | calltrace:parport_pc_init | 0 | 2 |
>> >> | calltrace:SyS_finit_module | 0 | 2 |
>> >> | WARNING:at_lib/kobject.c:#kobject_add_internal | 0 | 2 |
>> >> +------------------------------------------------+------------+------------+
>> >>
>> >>
>> >>
>> >> user :notice: [ 325.592182] vmem_aligned_alloc/TEST1: SETUP (check/pmem/debug)
>> >>
>> >> user :notice: [ 325.603973] vmem_aligned_alloc/TEST1: START: vmem_aligned_alloc
>> >> kern :err : [ 325.608906] BUG: sleeping function called from invalid context at kernel/locking/rwsem.c:51
>> >> kern :err : [ 325.608908] in_atomic(): 1, irqs_disabled(): 0, pid: 24813, name: vmem_aligned_al
>> >> kern :warn : [ 325.608914] CPU: 44 PID: 24813 Comm: vmem_aligned_al Tainted: G O 4.9.0-rc4-00045-ge2ae766 #1
>> >> kern :warn : [ 325.608916] Hardware name: Intel Corporation LH Pass/S4600LH...., BIOS SE5C600.86B.99.02.1047.032320122259 03/23/2012
>> >> kern :warn : [ 325.608922] ffffc9002c1f7be0
>> >> kern :warn : [ 325.608923] ffffffff81466af9
>> >> kern :warn : [ 325.608924] ffff880fea2425c0
>> >
>> > I think this is actually a bug introduced by Ross' PMD support. Attached
>> > patch should fix it. Ross, can you check it please?
>>
>> Hi, Jan
>>
>> Could you provide a git tree commit for me to test it? If you want it
>> to be tested by 0day.
>
> Thanks for the offer! I've pushed out the latest version of my DAX patches
> including the above fix to
>
> git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs.git dax
The test result of the head and its parent is as follow,
=========================================================================================
compiler/fs/group/kconfig/mount_option/nr_pmem/rootfs/tbox_group/test/testcase:
gcc-6/ext4/vmem/x86_64-rhel-7.2/dax/1/debian-x86_64-2016-08-31.cgz/lkp-sbx04/pmem/nvml
commit:
c6207e9b753f466bc2e41455dc7611869d439d4e
4393b9bdd5043e550f1bcaf7f4e9c413d0088425
c6207e9b753f466b 4393b9bdd5043e550f1bcaf7f4
---------------- --------------------------
fail:runs %reproduction fail:runs
| | |
3:3 -100% :3 dmesg.BUG:sleeping_function_called_from_invalid_context_at_kernel/locking/rwsem.c
3:3 -100% :3 kmsg.in_atomic():#,irqs_disabled():#,pid:#,name:vmem_aligned_al
3:3 -100% :3 kmsg.in_atomic():#,irqs_disabled():#,pid:#,name:vmem_multiple_p
The bug has been fixed. Feel free to add,
Tested-by: "Huang, Ying" <ying.huang@intel.com>
Best Regards,
Huang, Ying
prev parent reply other threads:[~2016-12-14 3:11 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20161212101321.GA37214@inn.lkp.intel.com>
2016-12-12 16:35 ` [ext4] e2ae766c1b: BUG:sleeping_function_called_from_invalid_context_at_kernel/locking/rwsem.c Jan Kara
2016-12-12 22:13 ` Ross Zwisler
2016-12-12 22:37 ` Theodore Ts'o
2016-12-12 22:48 ` Ross Zwisler
2016-12-12 23:00 ` Theodore Ts'o
2016-12-12 23:13 ` Ross Zwisler
2016-12-13 8:47 ` Jan Kara
2016-12-13 1:27 ` [LKP] " Huang, Ying
2016-12-13 11:42 ` Jan Kara
2016-12-14 3:11 ` Huang, Ying [this message]
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