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From: Cong Wang <xiyou.wangcong@gmail.com>
To: Johannes Thumshirn <jthumshirn@suse.de>
Cc: LKML <linux-kernel@vger.kernel.org>,
	Dan Williams <dan.j.williams@intel.com>,
	Praveen Murali <pmurali@logicube.com>,
	"James E.J. Bottomley" <jejb@linux.vnet.ibm.com>,
	"Martin K. Petersen" <martin.petersen@oracle.com>,
	linux-scsi@vger.kernel.org
Subject: Re: [PATCH] libsas: flush pending destruct work in sas_unregister_domain_devices()
Date: Tue, 28 Nov 2017 09:00:54 -0800	[thread overview]
Message-ID: <CAM_iQpV-uy9VXfVx9s5AX8TN5-0G=7Ny0uvmCCn7V7ys_gBbWw@mail.gmail.com> (raw)
In-Reply-To: <20171128082049.5smff3hvrkwrf77o@linux-x5ow.site>

On Tue, Nov 28, 2017 at 12:20 AM, Johannes Thumshirn <jthumshirn@suse.de> wrote:
> On Mon, Nov 27, 2017 at 04:24:45PM -0800, Cong Wang wrote:
>> We saw dozens of the following kernel waring:
>>
>>  WARNING: CPU: 0 PID: 705 at fs/sysfs/group.c:224 sysfs_remove_group+0x54/0x88()
>>  sysfs group ffffffff81ab7670 not found for kobject '6:0:3:0'
>>  Modules linked in: cpufreq_ondemand x86_pkg_temp_thermal coretemp kvm_intel kvm microcode raid0 iTCO_wdt iTCO_vendor_support sb_edac edac_core lpc_ich mfd_core ioatdma i2c_i801 shpchp wmi hed acpi_cpufreq lp parport tcp_diag inet_diag ipmi_si ipmi_devintf ipmi_msghandler sch_fq_codel igb ptp pps_core i2c_algo_bit i2c_core crc32c_intel isci libsas scsi_transport_sas dca ipv6
>>  CPU: 0 PID: 705 Comm: kworker/u240:0 Not tainted 4.1.35.el7.x86_64 #1
>
> This should by now be fixed with commit fbce4d97fd43 ("scsi: fixup kernel
> warning during rmmod()" which went into v4.14-rc6.

I don't see the full backtrace in commit fbce4d97fd43, but it is probably
not rmmod path in our case.

      parent reply	other threads:[~2017-11-28 17:01 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-28  0:24 [PATCH] libsas: flush pending destruct work in sas_unregister_domain_devices() Cong Wang
2017-11-28  8:20 ` Johannes Thumshirn
2017-11-28 11:18   ` John Garry
2017-11-28 17:04     ` Cong Wang
2017-12-07 13:37       ` John Garry
2017-12-07 22:57         ` Cong Wang
2017-12-08  0:40           ` Cong Wang
2017-12-08  1:04             ` Cong Wang
2017-12-08  7:54           ` Jason Yan
2017-12-09 19:51             ` Cong Wang
2017-11-28 17:00   ` Cong Wang [this message]

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