From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 71021] WARNING: CPU: 0 PID: 5517 at
/build/buildd/linux-3.13.0/fs/sysfs/group.c:214
sysfs_remove_group+0xc6/0xd0()
Date: Sat, 06 Feb 2016 01:20:11 +0000
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https://bugzilla.kernel.org/show_bug.cgi?id=71021
Yijing Wang changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |wangyijing@huawei.com
--- Comment #4 from Yijing Wang ---
I also found the same issue when remove my disk in my platform, I think the
code logic is incorrect, this call trace would appear every disk remove. I
found Dan Williams posted a fix patch, but it was not merged to kernel.
https://www.mail-archive.com/linux-scsi@vger.kernel.org/msg39187.html
Following is my call trace:
WARNING: CPU: 2 PID: 6 at fs/sysfs/group.c:224 sysfs_remove_group+0x9c/0xa0()
sysfs group (power)ffff800000a2dbe8 not found for kobject '0:0:1:0'
Modules linked in:
CPU: 2 PID: 6 Comm: kworker/u64:0 Not tainted 4.1.6+ #157
Hardware name: Hisilicon PhosphorV660 Development Board (DT)
Workqueue: scsi_wq_0 sas_destruct_devices
Call trace:
[] dump_backtrace+0x0/0x124
[] show_stack+0x10/0x1c
[] dump_stack+0x78/0x98
[] warn_slowpath_common+0x98/0xd0
[] warn_slowpath_fmt+0x4c/0x58
[] sysfs_remove_group+0x98/0xa0
[] dpm_sysfs_remove+0x54/0x68
[] device_del+0x3c/0x208
[] device_unregister+0x10/0x2c
[] bsg_unregister_queue+0xbc/0xf8
[] __scsi_remove_device+0x9c/0xbc
[] scsi_remove_device+0x44/0x64
[] scsi_remove_target+0x198/0x258
[] sas_rphy_remove+0x8c/0xb4
[] sas_rphy_delete+0x34/0x54
[] sas_destruct_devices+0x60/0x98
[] process_one_work+0x13c/0x344
[] worker_thread+0x13c/0x494
[] kthread+0xd8/0xf0
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