lkml.org 
[lkml]   [2001]   [Mar]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [CHECKER] 28 potential interrupt errors
Junfeng Yang wrote:
> [BUG] error path
>
> /u2/acc/oses/linux/2.4.1/drivers/net/appletalk/cops.c:776:cops_rx: ERROR:INTR:763:804: Interrupts inconsistent, severity `20':804

Fixed.

Request: can the checker check for skb's being freed correctly? The
rules:

If an skb is in interrupt context, call dev_kfree_skb_irq.
If an skb might be in interrupt context, call dev_kfree_skb_any.
If an skb is not in interrupt context, call dev_kfree_skb.

I also found and fixed an error of this sort on cops.c as well.

> [BUG] error path. this bug is interesting
>
> /u2/acc/oses/linux/2.4.1/drivers/net/pcmcia/wavelan_cs.c:2561:wavelan_get_wireless_stats: ERROR:INTR:2528:2561: Interrupts inconsistent, severity `20':2561
>
> /* Disable interrupts & save flags */
> Start --->
> spin_lock_irqsave (&lp->lock, flags);
>
> if(lp == (net_local *) NULL)
> return (iw_stats *) NULL;

Fixed.

I dunno WTF the programmer was thinking here... Your de-ref checker
should have caught this too: check 'lp' for NULL after de-referencing
lp->lock.

> [BUG] error path
>
> /u2/acc/oses/linux/2.4.1/drivers/net/tokenring/smctr.c:3655:smctr_open_tr: ERROR:INTR:3594:3661: Interrupts inconsistent, severity `20':3661

Seems to be fixed already.

--
Jeff Garzik | May you have warm words on a cold evening,
Building 1024 | a full mooon on a dark night,
MandrakeSoft | and a smooth road all the way to your door.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:29    [W:0.116 / U:0.252 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site