Re: Lockup after logging out of X

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On Wed, May 09, 2007 at 01:01:34AM +0200, Andi Kleen wrote:
> 
> Already known, although it is still unclear what the bug actually is.
> Can you run with the appended patch please (from Eric Biederman) 
> and post any backtraces the WARN_ON in there spews out? 
> 
> Also do you use swiotlb?
> 
> Thanks
> 
> -Andi
> 
 Had to turn off modules to get it to build.  It half-logged another
oops, but no backtraces, and SysRq+r does nothing.  Nothing else
unusual in the log.

May  9 00:47:12 bluesbreaker gconfd (ken-2833): Resolved address
"xml:readonly:/etc/gnome/gconf/gconf.xml.defaults" to a read-only
configuration source at position 2
May  9 00:52:59 bluesbreaker kernel: [  275.667737] Unable to handle
kernel paging request at ffff81003b4ac3e8 RIP:
May  9 00:52:59 bluesbreaker kernel: [  275.667742]
[<ffffffff8027134a>] fasync_helper+0x52/0xf0
May  9 00:52:59 bluesbreaker kernel: [  275.667749] PGD 8063 PUD
9063 PMD 800000003b4a11e3 BAD
May  9 00:52:59 bluesbreaker kernel: [  275.667754] Oops: 0009 [1]
PREEMPT
May  9 00:54:26 bluesbreaker syslogd 1.4.1: restart.
May  9 00:54:26 bluesbreaker bootlog: Starting system log daemon...
[  OK  ]

 Apparently I do use swiotlb - I didn't know that, and can't see
where it gets asked in menuconfig, but I can see
CONFIG_SWIOTLB=y

 Let me know if there is anything else I can test (probably pm
tomorrow), otherwise I'll go back to -head.

Ken
-- 
das eine Mal als Tragödie, das andere Mal als Farce
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