Reset due to emergency remount r/o

[Valdis.Kletnieks at vt.edu]

On Thu, 27 Feb 2014 09:43:35 +0530, Arun KS said:

> > [ 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).

Note that if it came in courtesy of alt-SYSRQ keyboard request, then
current-> won't point anywhere meaningful.
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