lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Date:   Sat, 4 Feb 2017 15:09:36 +0800
From:   kernel test robot <xiaolong.ye@...el.com>
To:     Dan Williams <dan.j.williams@...el.com>
Cc:     Jens Axboe <axboe@...com>,
        James Bottomley <James.Bottomley@...senpartnership.com>,
        Bart Van Assche <bart.vanassche@...disk.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Jan Kara <jack@...e.cz>, Omar Sandoval <osandov@...ndov.com>,
        Omar Sandoval <osandov@...com>, Christoph Hellwig <hch@....de>,
        LKML <linux-kernel@...r.kernel.org>,
        Jens Axboe <axboe@...nel.dk>, lkp@...org
Subject: [lkp-robot] [scsi, block]  0dba1314d4:
 WARNING:at_fs/sysfs/dir.c:#sysfs_warn_dup


FYI, we noticed the following commit:

commit: 0dba1314d4f81115dce711292ec7981d17231064 ("scsi, block: fix duplicate bdi name registration crashes")
https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git for-4.11/next

in testcase: boot

on test machine: qemu-system-i386 -enable-kvm -cpu Haswell,+smep,+smap -m 360M

caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):


+----------------------------------------------+------------+------------+
|                                              | efa7c9f97e | 0dba1314d4 |
+----------------------------------------------+------------+------------+
| boot_successes                               | 0          | 0          |
| boot_failures                                | 6          | 6          |
| WARNING:at_include/linux/kref.h:#kobject_get | 6          | 6          |
| BUG:workqueue_lockup-pool                    | 2          |            |
| WARNING:at_fs/sysfs/dir.c:#sysfs_warn_dup    | 0          | 6          |
+----------------------------------------------+------------+------------+



[    8.820258] ------------[ cut here ]------------
[    8.821188] WARNING: CPU: 0 PID: 1 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x58/0x70
[    8.822994] sysfs: cannot create duplicate filename '/class/scsi_disk/0:0:0:0'
[    8.824567] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G        W       4.10.0-rc5-00097-g0dba131 #1
[    8.826275] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.3-20161025_171302-gandalf 04/01/2014
[    8.828156] Call Trace:
[    8.828851]  dump_stack+0x79/0xa4
[    8.829628]  __warn+0xd2/0xf0
[    8.830372]  ? sysfs_warn_dup+0x58/0x70
[    8.831211]  warn_slowpath_fmt+0x36/0x40
[    8.832054]  sysfs_warn_dup+0x58/0x70
[    8.832865]  sysfs_do_create_link_sd+0x9e/0xb0
[    8.833844]  sysfs_create_link+0x20/0x40
[    8.834714]  device_add+0x218/0x610
[    8.835511]  ? kvasprintf_const+0x49/0x60
[    8.836352]  ? kobject_set_name_vargs+0x62/0x80
[    8.837253]  sd_probe+0x31a/0x390
[    8.838027]  ? _raw_spin_unlock+0x1d/0x30
[    8.838884]  driver_probe_device+0x190/0x4a0
[    8.839751]  __device_attach_driver+0x6f/0x100
[    8.840736]  ? klist_next+0x6e/0x100
[    8.841538]  ? __driver_attach+0xf0/0xf0
[    8.842383]  bus_for_each_drv+0x47/0x80
[    8.843226]  __device_attach+0xa8/0x120
[    8.844062]  ? __driver_attach+0xf0/0xf0
[    8.844902]  device_initial_probe+0xd/0x10
[    8.845754]  bus_probe_device+0x77/0x80
[    8.846593]  device_add+0x320/0x610
[    8.847387]  scsi_sysfs_add_sdev+0x85/0x2b0
[    8.848246]  ? scsi_attach_vpd+0x1f9/0x210
[    8.849103]  scsi_probe_and_add_lun+0xd44/0xe70
[    8.850021]  __scsi_scan_target+0xd8/0x690
[    8.850918]  ? __pm_runtime_resume+0x37/0x80
[    8.852124]  scsi_scan_channel+0x8f/0xb0
[    8.852977]  scsi_scan_host_selected+0x100/0x180
[    8.853885]  do_scsi_scan_host+0x8a/0x90
[    8.854733]  scsi_scan_host+0x15a/0x1a0
[    8.855562]  sdebug_driver_probe+0x14f/0x3d0
[    8.856435]  ? _raw_spin_unlock+0x1d/0x30
[    8.857270]  ? devices_kset_move_last+0x71/0xc0
[    8.858170]  ? sysfs_create_link+0x20/0x40
[    8.859057]  driver_probe_device+0xd4/0x4a0
[    8.859924]  __device_attach_driver+0x6f/0x100
[    8.860814]  ? klist_next+0x6e/0x100
[    8.861619]  ? __driver_attach+0xf0/0xf0
[    8.862470]  bus_for_each_drv+0x47/0x80
[    8.863298]  __device_attach+0xa8/0x120
[    8.864131]  ? __driver_attach+0xf0/0xf0
[    8.864975]  device_initial_probe+0xd/0x10
[    8.865831]  bus_probe_device+0x77/0x80
[    8.866704]  device_add+0x320/0x610
[    8.867497]  ? pm_runtime_init+0xea/0xf0
[    8.868326]  device_register+0x12/0x20
[    8.869146]  sdebug_add_adapter+0xda/0x1e0
[    8.870002]  ? driver_register+0x83/0xe0
[    8.870847]  scsi_debug_init+0x5a0/0x6eb
[    8.871686]  ? kobject_uevent+0xa/0x10
[    8.872507]  ? driver_register+0x83/0xe0
[    8.873336]  ? scsi_register_driver+0xf/0x20
[    8.874218]  ? init_ch_module+0x9d/0x9d
[    8.875088]  do_one_initcall+0x7b/0x132
[    8.875918]  ? kernel_init_freeable+0xe7/0x188
[    8.876807]  kernel_init_freeable+0x10a/0x188
[    8.877690]  ? rest_init+0xb0/0xb0
[    8.878482]  kernel_init+0xb/0x100
[    8.879262]  ? schedule_tail+0xc/0x70
[    8.880076]  ? rest_init+0xb0/0xb0
[    8.880861]  ret_from_fork+0x21/0x2c
[    8.881688] ---[ end trace 62a20110376b9cdf ]---


To reproduce:

        git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git
        cd lkp-tests
        bin/lkp qemu -k <bzImage> job-script  # job-script is attached in this email



Thanks,
Xiaolong

View attachment "config-4.10.0-rc5-00097-g0dba131" of type "text/plain" (101167 bytes)

View attachment "job-script" of type "text/plain" (3743 bytes)

Download attachment "dmesg.xz" of type "application/octet-stream" (21480 bytes)

Powered by blists - more mailing lists