linux-kernel - Re: kernel BUG at drivers/block/cciss.c:1260! (with recent linux-2.6 tree)

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Date:	Tue, 29 Jan 2008 10:22:17 -0800
From:	Andrew Vasquez <andrew.vasquez@...gic.com>
To:	Jens Axboe <jens.axboe@...cle.com>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	mike.miller@...com, k-ueda@...jp.nec.com, j-nomura@...jp.nec.com
Subject: Re: kernel BUG at drivers/block/cciss.c:1260! (with recent
	linux-2.6  tree)

On Tue, 29 Jan 2008, Jens Axboe wrote:

> Andrew, can you try with this applied?
> 
> diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
> index ef50068..bd7b352 100644
> --- a/drivers/block/cciss.c
> +++ b/drivers/block/cciss.c
> @@ -1257,7 +1257,7 @@ static void cciss_softirq_done(struct request *rq)
>  #endif				/* CCISS_DEBUG */
>  
>  	if (blk_end_request(rq, (rq->errors == 0) ? 0 : -EIO, blk_rq_bytes(rq)))
> -		BUG();
> +		blk_dump_rq_flags(rq, "cciss rq");
>  
>  	spin_lock_irqsave(&h->lock, flags);
>  	cmd_free(h, cmd, 1);

Here the final snippet that was logged:

[   12.724997] input: USB HID v1.01 Mouse [HP Virtual Keyboard] on usb-0000:01:04.4-1
[   12.728971] usbcore: registered new interface driver usbhid
[   12.732866] drivers/hid/usbhid/hid-core.c: v2.6:USB HID core driver
[   12.741172] TCP cubic registered
[   12.744506] NET: Registered protocol family 1
[   12.744884] NET: Registered protocol family 17
[   12.749217] Freeing unused kernel memory: 228k freed
[   12.885823] cciss rq: dev cciss/c0d0: type=2, flags=104c8
[   12.888929] 
[   12.888930] sector 6510615555426900570, nr/cnr 0/0
[   12.892895] bio ffff81042f130730, biotail ffff81042f130730, buffer 0000000000000000, data 0000000000000000, len 0
[   12.896895] cdb: 12 00 00 00 fe 00 00 00 00 00 00 00 00 00 00 00 
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