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Re: kern/47041 (amd64 kernel core dumps are broken)
The following reply was made to PR kern/47041; it has been noted by GNATS.
From: Chuck Silvers <chuq%chuq.com@localhost>
To: Taylor R Campbell <campbell+netbsd%mumble.net@localhost>
Cc: gnats-bugs%NetBSD.org@localhost, kern-bug-people%netbsd.org@localhost,
Subject: Re: kern/47041 (amd64 kernel core dumps are broken)
Date: Sat, 12 Jan 2013 08:27:22 -0800
On Sat, Jan 12, 2013 at 08:16:05AM +0000, Taylor R Campbell wrote:
> Similar issue again, triggered by `sysctl -w kern.panic_now=1' while
> the machine was idle. My wild guess is that this smells faintly like
> an ahcisata MP-safety issue.
> Skipping crash dump on recursive panic
> panic: pool_get(ataspl): free list modified: magic=deaddeed; page
> 0xfffffe8874831000; item addr 0xfffffe8874831f00
> cpu18: Begin traceback...
> printf_nolog() at netbsd:printf_nolog
> pool_cache_cpu_init1() at netbsd:pool_cache_cpu_init1
> ata_get_xfer() at netbsd:ata_get_xfer+0x2d
> ahci_ata_bio() at netbsd:ahci_ata_bio+0x2f
> wddump() at netbsd:wddump+0x167
this ahcisata problem is reported separately in PR 41095.
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