Re: magic sysrq keys functionality

From: bugghy <bugghy_at_home.ro>
Date: Sun, 25 Jul 2004 21:23:36 +0000
Yeah but it sometimes "freezes" (no reboot) ... and I'd rather umount my
filesystems before rebooting.

On Sun, 2004-07-25 at 01:42, Daniel O'Connor wrote:
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> On Sun, 25 Jul 2004 10:50, bugghy wrote:
> > 	Does the FBSD kernel have a functionality similar to linux 2.4's
> > MAGIC_SYSRQ. I'd like to remount my filesystems readonly (sync and
> > reboot) after a crash if possible.
> 
> If you have a panic then it will reboot (may or may not be straight away 
> depending on what kernel options you have)
> 
> I think -current as of a few days ago nolonger syncs your disk on panic 
> because it can cause more problems than it solves.
> (ie a panic usually happens when some internal state is hosed which means 
> writing to the disk is potentially dangerous)
> 
> - -- 
> Daniel O'Connor software and network engineer
> for Genesis Software - http://www.gsoft.com.au
> "The nice thing about standards is that there
> are so many of them to choose from."
>   -- Andrew Tanenbaum
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Received on Sun Jul 25 2004 - 16:26:05 UTC

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