[Bug 210203] New: linux boot sometimes hang around scsi_try_target_reset for a system with SSD/SATA 1.92T *10

[Bug 210203] New: linux boot sometimes hang around scsi_try_target_reset for a system with SSD/SATA 1.92T *10

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=210203

            Bug ID: 210203
           Summary: linux boot sometimes hang around scsi_try_target_reset
                    for a system with SSD/SATA 1.92T *10
           Product: IO/Storage
           Version: 2.5
    Kernel Version: 5.4.76 and other 5.4.x
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: SCSI
          Assignee: linux-scsi@vger.kernel.org
          Reporter: wangyugui@e16-tech.com
        Regression: No

Created attachment 293673
  --> https://bugzilla.kernel.org/attachment.cgi?id=293673&action=edit
sysrq-l-t-1.log

linux boot sometimes hang around scsi_try_target_reset for a system with
SSD/SATA 1.92T *10

console output:
        A start job is running for dev-disk-by\x2dlabel-OS_T604.device
                *** always waiting here

Failed to login, so only gathered SysRq info(saved in sysrq-l-t-1.log,
sysrq-l-t-2.log).
- sysrq l command
- sysrq t command

From SysRq info, it seem a problem around scsi_try_target_reset();

[  744.388123] scsi_eh_9       S    0   604      2 0x80004000
[  744.388124] Call Trace:
[  744.388125]  __schedule+0x285/0x6e0
[  744.388126]  ? scsi_try_target_reset+0x90/0x90
[  744.388127]  schedule+0x2f/0xa0
[  744.388128]  scsi_error_handler+0x1c4/0x500
[  744.388129]  ? scsi_eh_get_sense+0x220/0x220
[  744.388130]  kthread+0x112/0x130
[  744.388131]  ? kthread_park+0x80/0x80
[  744.388132]  ret_from_fork+0x1f/0x40


Frequency: about 10%
   only happened in a server with btrfs RAID0 & 10 SSD.
   yet not happened in another two server with the same kernel

OS: centos 7.8/7.9
kernel version:
        5.4.76, 5.4.74, 5.4.73, and others 5.4.x

# lsscsi
[14:0:0:0]   disk    ATA      MK1920GFDKU      HPG0  /dev/sda
[14:0:1:0]   disk    ATA      MK1920GFDKU      HPG0  /dev/sdb
[14:0:2:0]   disk    ATA      MK1920GFDKU      HPG0  /dev/sdc
[14:0:3:0]   disk    ATA      MK1920GFDKU      HPG0  /dev/sdd
[14:0:4:0]   disk    ATA      MK1920GFDKU      HPG0  /dev/sde
[14:0:6:0]   disk    ATA      SAMSUNG MZ7KM1T9 003Q  /dev/sdf
[14:0:7:0]   disk    ATA      SAMSUNG MZ7KM1T9 003Q  /dev/sdg
[14:0:8:0]   disk    ATA      SAMSUNG MZ7KM1T9 003Q  /dev/sdh
[14:0:9:0]   disk    ATA      SAMSUNG MZ7KM1T9 003Q  /dev/sdi
[14:0:10:0]  disk    ATA      SAMSUNG MZ7KM1T9 003Q  /dev/sdj

-- 
You are receiving this mail because:
You are the assignee for the bug.

[Bug 210203] linux boot sometimes hang around scsi_try_target_reset for a system with SSD/SATA 1.92T *10

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=210203

--- Comment #1 from wangyugui@e16-tech.com (wangyugui@e16-tech.com) ---
Created attachment 293675
  --> https://bugzilla.kernel.org/attachment.cgi?id=293675&action=edit
sysrq-l-t-2.log

-- 
You are receiving this mail because:
You are the assignee for the bug.

[Bug 210203] linux boot sometimes hang around scsi_try_target_reset for a system with SSD/SATA 1.92T *10

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=210203

--- Comment #2 from wangyugui@e16-tech.com (wangyugui@e16-tech.com) ---
or maybe some problem of megaraid_sas.ko?

This is a Dell PERCH730P(Broadcom / LSI MegaRAID SAS-3 3108 )with the lastest
firmware from Dell.

# modinfo megaraid_sas
filename:      
/lib/modules/5.4.76-1.2.el7.x86_64/kernel/drivers/scsi/megaraid/megaraid_sas.ko.xz
description:    Broadcom MegaRAID SAS Driver
author:         megaraidlinux.pdl@broadcom.com
version:        07.710.50.00-rc1

-- 
You are receiving this mail because:
You are the assignee for the bug.

[Bug 210203] linux boot sometimes hang around scsi_try_target_reset for a system with SSD/SATA 1.92T *10

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=210203

wangyugui@e16-tech.com (wangyugui@e16-tech.com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |CODE_FIX

--- Comment #3 from wangyugui@e16-tech.com (wangyugui@e16-tech.com) ---
I tested it with 5.10-rc4 too.

5.10-rc4 always failed to boot on centos 7.9, but x-systemd.device-timeout=120
works, so we can login to check more.

blkid show megaraid_sas works well,

so it should be a problem of systemd or d-bus of centos 7.9? althrough yet not
full resolved, Let's close it firstly.

-- 
You are receiving this mail because:
You are the assignee for the bug.