Re: [PATCH v2 1/1] smb: client: Fix hang in smb2_reconnect

[Rickard x Andersson]

On 4/13/24 21:40, Steve French wrote:
> Is there any way to verify if the same problem can be reproduced with 
> 6.9-rc3 or later


I have now reproduced the problem also on 6.9.0-rc3:


 INFO: task umount:511 blocked for more than 614 seconds.
       Not tainted 6.9.0-rc3-axis9-devel #1
 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
 task:umount          state:D stack:0     pid:511   tgid:511   ppid:509 
   flags:0x00000004
 Call trace:
  __schedule from schedule+0x34/0x14c
  schedule from schedule_preempt_disabled+0x24/0x34
 schedule_preempt_disabled from __mutex_lock.constprop.0+0x330/0x8b0
  __mutex_lock.constprop.0 from smb2_reconnect+0x114/0x8fc [cifs]
  smb2_reconnect [cifs] from SMB2_open_init+0x58/0xa5c [cifs]
  SMB2_open_init [cifs] from smb2_query_info_compound+0x1a4/0x50c [cifs]
  smb2_query_info_compound [cifs] from smb2_queryfs+0x64/0x134 [cifs]
  smb2_queryfs [cifs] from cifs_statfs+0xc8/0x318 [cifs]
  cifs_statfs [cifs] from statfs_by_dentry+0x60/0x84
  statfs_by_dentry from fd_statfs+0x30/0x74
  fd_statfs from sys_fstatfs64+0x40/0x6c
  sys_fstatfs64 from ret_fast_syscall+0x0/0x54
 Exception stack(0xc749ffa8 to 0xc749fff0)
 ffa0:                   01716218 00000000 00000003 00000058 beb62b90 
00000000
 ffc0: 01716218 00000000 00000003 0000010b b6fbd138 01716448 017162a4 
beb62b90
 ffe0: 0000010b beb62ad4 b6f0861f b6e87866


Best regards,
Rickard