* RE: PPC 2.6.11.4 kernel panics while doing insmod (store fault wi th d cbst in icache_flush_range)
@ 2006-08-29 4:59 Kallol Biswas
0 siblings, 0 replies; only message in thread
From: Kallol Biswas @ 2006-08-29 4:59 UTC (permalink / raw)
To: 'Paul Mackerras'
Cc: linux-kernel, linuxppc-dev, Ronald Lee,
Radjendirane Codandaramane, Shawn Jin
Processor: PPC440
Dcbst takes the store fault.
-----Original Message-----
From: Paul Mackerras [mailto:paulus@samba.org]
Sent: Monday, August 28, 2006 9:35 PM
To: Kallol Biswas
Cc: linux-kernel@vger.kernel.org; linuxppc-dev@ozlabs.org; Ronald Lee; Radjendirane Codandaramane; Shawn Jin
Subject: Re: PPC 2.6.11.4 kernel panics while doing insmod (store fault with d cbst in icache_flush_range)
Kallol Biswas writes:
> mr r6,r3
> 1: dcbst 0,r3
> addi r3,r3,L1_CACHE_LINE_SIZE
> bdnz 1b
>
> The instruction takes a store fault (DST bit, bit 8 of ESR gets set),
> kernel panics with oops (signal 11).
What processor are you using?
Which instruction takes a store fault?
Paul.
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2006-08-29 4:59 PPC 2.6.11.4 kernel panics while doing insmod (store fault wi th d cbst in icache_flush_range) Kallol Biswas
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