lkml.org 
[lkml]   [1999]   [Sep]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: IDE + SMP Lockup (no OOPS) in 2.2.12, 2.2.10
Date
From
> >>EIP: c01d3455 <stext_lock+255d/4a88>=0A=
> Trace: c0197828 <ide_dma_intr+0/90>=0A=

Ok so it took an IRQ and gets stuck waiting on a lock - looks like
the hwgroup->spinlock

> Aiee, killing interrupt handler=0A=
> Kernel panic: Attempted to kill the idle task!=0A=

This second trace is the other CPU (perfect....)

> >>EIP: c010aee0 <disable_irq+34/40>=0A=
> Trace: c0189957 <ide_do_request+2f7/550>=0A=
> Trace: c0189c2c <do_hwgroup_request+48/5c>=0A=

Which makes it all to clear


Ok whats happened is this

CPU0 CPU1
take hwgroup spinlock
take an irq
disable_irq
[wait for IRQ completion]
try to take hwgroup spinlock


Alan



-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:54    [W:1.274 / U:0.148 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site