Re: Reset due to emergency remount r/o

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi Priyaranjan,


On Wed, Feb 19, 2014 at 6:14 PM, Priyaranjan Das
<priyaranjan456789@xxxxxxxxx> wrote:
>
> Hi All,
>
> I am facing an kernel restart due to emergency remount. Could anybody tell me general techniques to go head with the debugging?
>
> Below are the logs which are seen during a reboot.
>
> [ 425.832395,1] SysRq : Emergency Remount R/O

This looks like be a sys request from user space.
Application can write echo u > /proc/sysrq-trigger to trigger an
emergency remount.

You can hack "drivers/tty/sysrq.c" to print current task(to know who is doing).

Thanks,
Arun
>
> [ 425.876210,1] EXT4-fs (mmcblk0p36): re-mounted. Opts: (null)
> [ 425.925899,1] EXT4-fs (mmcblk0p33): re-mounted. Opts: (null)
> [ 425.928731,1] EXT4-fs (mmcblk0p29): re-mounted. Opts: (null)
> [ 425.955762,1] Emergency Remount complete
>
> [ 426.187136,0] Restarting system with command 'bootloader'.
> [ 426.187327,0] Current task:init(1) Parent task:swapper/0(0)
> [ 426.187430,0] Going down for restart now
>
>
> Regards,
>
> Priyaranjan
>
>
> _______________________________________________
> Kernelnewbies mailing list
> Kernelnewbies@xxxxxxxxxxxxxxxxx
> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
>

_______________________________________________
Kernelnewbies mailing list
Kernelnewbies@xxxxxxxxxxxxxxxxx
http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies




[Index of Archives]     [Newbies FAQ]     [Linux Kernel Mentors]     [Linux Kernel Development]     [IETF Annouce]     [Git]     [Networking]     [Security]     [Bugtraq]     [Yosemite]     [MIPS Linux]     [ARM Linux]     [Linux RAID]     [Linux SCSI]     [Linux ACPI]
  Powered by Linux