From: Tejun Heo <tj@kernel.org>
To: Jason Yan <yanaijie@huawei.com>
Cc: linux-ide@vger.kernel.org
Subject: Re: about warning in ata_eh_finish()
Date: Wed, 20 Dec 2017 09:36:36 -0800 [thread overview]
Message-ID: <20171220173636.GC3413940@devbig577.frc2.facebook.com> (raw)
In-Reply-To: <5A39FF85.1040904@huawei.com>
On Wed, Dec 20, 2017 at 02:13:25PM +0800, Jason Yan wrote:
> Hi, Tejun,
>
> We often see this warning when using sata disks with libsas:
>
> [26705.760518] WARNING: CPU: 1 PID: 6796 at
> drivers/ata/libata-eh.c:4037 ata_eh_finish+0xb4/0xcc
>
> [26706.350156] [<ffff0000088baf70>] ata_eh_finish+0xb4/0xcc
> [26706.364260] [<ffff0000088bb764>] ata_do_eh+0x68/0xd8
> [26706.377497] [<ffff0000088bb818>] ata_std_error_handler+0x44/0x8c
> [26706.393406] [<ffff0000088bb408>] ata_scsi_port_error_handler+0x480/0x694
> [26706.411352] [<ffff000008879364>] async_sas_ata_eh+0x4c/0x80
> [26706.426133] [<ffff0000080f6be8>] async_run_entry_fn+0x4c/0x170
> [26706.441841] [<ffff0000080ebd70>] process_one_work+0x144/0x390
> [26706.457057] [<ffff0000080ec100>] worker_thread+0x144/0x418
> [26706.471610] [<ffff0000080f2c98>] kthread+0x10c/0x138
> [26706.484991] [<ffff0000080855dc>] ret_from_fork+0x10/0x18
>
> This seems implies that ap->nr_active_links is wrong and should be zero.
> But I didn't see any other errors. The disks work well.
Which kernel version are you running on what sort of device? Can you
post the full log?
Thanks.
--
tejun
next prev parent reply other threads:[~2017-12-20 17:36 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-20 6:13 about warning in ata_eh_finish() Jason Yan
2017-12-20 17:36 ` Tejun Heo [this message]
2017-12-21 1:31 ` Jason Yan
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