Re: 2.4.18 AIC7XXX hard lockup

Andrew Morton (akpm@zip.com.au)
Fri, 07 Jun 2002 15:26:49 -0700


James Bourne wrote:
>
> Hi,
> We are currently running 2.4.18 (Marcelo) on a Dell PE4400 with
> Perc3/DC and 2 on board adaptec controllers (two 7899 channels and one
> 7880).
>
> On the first 7899 channel we have attached 2 Quantum DLT 7000 drives and a
> BHTi Quad 7 changer, on the second there are another 2 Quantum DLT
> 7000 drives and a BHTi Q2 changer as well as the internal CDROM.
>
> Now, what is happening is when we are initializing the JBs, the host
> system will abruptly hang. Turning on aic7xxx=verbose on the kernel
> command line has given additional output, but still nothing solid as far
> as trouble shooting information. The only information I have been
> able to get out of it has been:
>
> scsi1:0:6:0: Attempting to queue an ABORT message
>
> This is the stock 6.2.4 adaptec driver in 2.4.18 and with the 6.2.5 driver
> under 2.4.18 (I've patched and tested this one today). Attached are
> kernel log segments of the information from boot to hang for 6.2.4 and
> 6.2.5 driver revisions...
>

It does that for me in 2.5 as well, very occasionally.

Try booting with the `nmi_watchdog=1' kernel boot option,
and see if that catches a backtrace.

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