kern/95459: Rebooting the system while rebuilding RAID (Intel MatrixRAID) results in data loss

Mon Nov 13 10:50:10 UTC 2006

The following reply was made to PR kern/95459; it has been noted by GNATS.

From: "Wouter de Jong" <maddog2k at maddog2k.net>
To: <bug-followup at FreeBSD.org>,
	<be9-ml at be9.ru>
Cc:  
Subject: Re: kern/95459: Rebooting the system while rebuilding RAID (Intel MatrixRAID) results in data loss
Date: Mon, 13 Nov 2006 11:47:44 +0100

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 I get the same error message _after_ rebuilding (and the ar0 goes back =
 to status READY).
 However, my data is not lost nor the RAID.
 The system just 'hangs'.

 This is with both ICH5 and ICH6-chipset. (different SuperMicro =
 server-models).

 Nov 13 10:41:16 monitoring0-1 kernel: ad4: 76319MB <WDC WD800JD-00LSA0 =
 06.01D06> at ata2-master SATA150
 Nov 13 10:41:37 monitoring0-1 kernel: ad4: inserted into ar0 disk0 as =
 spare
 Nov 13 11:34:22 monitoring0-1 kernel: ad6: WARNING - WRITE_DMA taskqueue =
 timeout - completing request directly
 Nov 13 11:34:22 monitoring0-1 kernel: ad4: WARNING - WRITE_DMA freeing =
 taskqueue zombie request
 Nov 13 11:34:22 monitoring0-1 kernel: ad6: WARNING - WRITE_DMA freeing =
 taskqueue zombie request

 After rebooting, it's all OK _after_ a forced fsck in single mode.

 Regards,

 Wouter
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 <DIV><FONT face=3DArial size=3D2>I get the same error&nbsp;message =
 _after_=20
 rebuilding (and the ar0 goes back to status READY).</FONT></DIV>
 <DIV><FONT face=3DArial size=3D2>However, my data is not lost nor=20
 the&nbsp;RAID.</FONT></DIV>
 <DIV><FONT face=3DArial size=3D2>The system just 'hangs'.</FONT></DIV>
 <DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
 <DIV><FONT face=3DArial size=3D2>This is with both ICH5 and =
 ICH6-chipset. (different=20
 SuperMicro server-models).</FONT></DIV>
 <DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
 <DIV><FONT face=3DArial size=3D2>Nov 13 10:41:16 monitoring0-1 kernel: =
 ad4: 76319MB=20
 &lt;WDC WD800JD-00LSA0 06.01D06&gt; at ata2-master SATA150<BR>Nov 13 =
 10:41:37=20
 monitoring0-1 kernel: ad4: inserted into ar0 disk0 as spare<BR>Nov 13 =
 11:34:22=20
 monitoring0-1 kernel: ad6: WARNING - WRITE_DMA taskqueue timeout - =
 completing=20
 request directly<BR>Nov 13 11:34:22 monitoring0-1 kernel: ad4: WARNING - =

 WRITE_DMA freeing taskqueue zombie request<BR>Nov 13 11:34:22 =
 monitoring0-1=20
 kernel: ad6: WARNING - WRITE_DMA freeing taskqueue zombie=20
 request<BR></FONT></DIV>
 <DIV><FONT face=3DArial size=3D2>After rebooting, it's all OK _after_ a =
 forced fsck=20
 in single mode.</FONT></DIV>
 <DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
 <DIV><FONT face=3DArial size=3D2>Regards,</FONT></DIV>
 <DIV><FONT face=3DArial size=3D2><BR>Wouter</DIV></FONT></BODY></HTML>

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