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Date: Tue, 22 Feb 2005 18:50:36 GMT
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To: freebsd-i386@FreeBSD.org
From: Vladimir Kotal <vlada@devnull.cz>
Subject: Re: i386/76397: ata raid crashes in g_down (heavy load)
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The following reply was made to PR i386/76397; it has been noted by GNATS.

From: Vladimir Kotal <vlada@devnull.cz>
To: freebsd-gnats-submit@FreeBSD.org, rp@tns.cz
Cc:  
Subject: Re: i386/76397: ata raid crashes in g_down (heavy load)
Date: Tue, 22 Feb 2005 19:44:28 +0100

 I can confirm that there is a problem in GEOM in 5.3 patch branch:
 
 Feb 21 11:07:53 news kernel:
 Feb 21 11:07:53 news kernel:
 Feb 21 11:07:53 news kernel: Fatal trap 12: page fault while in kernel 
 mode
 Feb 21 11:07:53 news kernel: fault virtual address      = 0x7c
 Feb 21 11:07:53 news kernel: fault code         = supervisor write, 
 page not present
 Feb 21 11:07:53 news kernel: instruction pointer        = 0x8:0xc044f23d
 Feb 21 11:07:53 news kernel: stack pointer              = 
 0x10:0xcc714c5c
 Feb 21 11:07:53 news kernel: frame pointer              = 
 0x10:0xcc714cd8
 Feb 21 11:07:53 news kernel: code segment               = base 0x0, 
 limit 0xfffff, type 0x1b
 Feb 21 11:07:53 news kernel: = DPL 0, pres 1, def32 1, gran 1
 Feb 21 11:07:53 news kernel: processor eflags   = interrupt enabled, 
 resume, IOPL = 0
 Feb 21 11:07:53 news kernel: current process            = 4 (g_down)
 Feb 21 11:07:53 news kernel: trap number                = 12
 Feb 21 11:07:53 news kernel: panic: page fault
 Feb 21 11:07:53 news kernel: Uptime: 20m50s
 Feb 21 11:07:53 news kernel: Cannot dump. No dump device defined.
 Feb 21 11:07:53 news kernel: Automatic reboot in 15 seconds - press a 
 key on the console to abort
 Feb 21 11:07:53 news kernel: Rebooting...
 
 
 relevant part of dmesg:
 
 ad4: 38166MB <WDC WD400JB-00ENA0/05.03E05> [77545/16/63] at ata2-master 
 UDMA100
 ad6: 38166MB <WDC WD400JB-00ENA0/05.03E05> [77545/16/63] at ata3-master 
 UDMA100
 ar0: 38166MB <ATA RAID1 array> [4865/255/63] status: READY subdisks:
   disk0 READY on ad4 at ata2-master
   disk1 READY on ad6 at ata3-master
 Mounting root from ufs:/dev/ar0s1a
 
 
 uname -a output:
 
 FreeBSD news 5.3-RELEASE-p1 FreeBSD 5.3-RELEASE-p1 #0: Tue Feb 22
 09:49:48 CET 2005     news:/usr/src/sys/i386/compile/news_5.3
 i386
 
 When the system crashes again, I will submit full backtrace.