linux-kernel - Re: mptscsi: BUG: unable to handle kernel NULL pointer, in scsi_send_eh

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Message-ID: <alpine.SOC.1.00.1207101452270.9883@math.ut.ee>
Date:	Tue, 10 Jul 2012 14:54:55 +0300 (EEST)
From:	Meelis Roos <mroos@...ux.ee>
To:	James Bottomley <James.Bottomley@...senpartnership.com>
cc:	linux-scsi@...r.kernel.org,
	Linux Kernel list <linux-kernel@...r.kernel.org>,
	Eric Moore <Eric.Moore@....com>, DL-MPTFusionLinux@....com,
	support@....com
Subject: Re: mptscsi: BUG: unable to handle kernel NULL pointer, in
 scsi_send_eh_cmnd

> > I am using Linux 3.4.0 with a 53c1030 and a tape library that sometimes 
> > barfs for yet unknown reasons. When it happens, I get a BUG with 
> > backtrace and this scsi channel is dead until I reboot. Seems to be 
> > something with either generic scsi error handling or with mpt scsi.
> 
> I think it might actually be fixed by this:
> 
> http://git.kernel.org/?p=linux/kernel/git/jejb/scsi.git;a=commit;h=222a806af830fda34ad1f6bc991cd226916de060

Tested on top on 3.4.0, works - mptscsih is reset successfully, domain 
validation for all scsi devices succeeds, no BUG. Scsi communication 
works.

-- 
Meelis Roos (mroos@...ux.ee)
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