linux-kernel - Re: Linux 2.6.25-rc4

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Message-Id: <200803181403.37969.bzolnier@gmail.com>
Date:	Tue, 18 Mar 2008 14:03:36 +0100
From:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
To:	Anders Eriksson <aeriksson@...tmail.fm>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	Jens Axboe <jens.axboe@...cle.com>,
	Ingo Molnar <mingo@...e.hu>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: Linux 2.6.25-rc4

On Tuesday 18 March 2008, Anders Eriksson wrote:
> 
> torvalds@...ux-foundation.org said:
> > So try to see if you get to ide_error(), which is where Bartlomiejs latest
> > patch was in effect - but add a few printk's there to print out the 'stat'
> > variable etc to see if it actually triggers. And maybe a WARN_ON(1) to get
> > the trace.. 
> 
> Seems we don't. At least this addition didn't yield anything:
> 
> ide_startstop_t ide_error (ide_drive_t *drive, const char *msg, u8 stat)
> {
>         ide_hwif_t *hwif = drive->hwif;
>         struct request *rq = hwif->hwgroup->rq;
>         u8 err;
> 
>               printk("ide_error(msg=%s, stat=%i)\n",msg,stat);
>               WARN_ON(1);
>                if (rq && rq->cmd_type == REQ_TYPE_ATA_TASKFILE) {
> 

Could you also add printk() to task_in_intr()?

---
 drivers/ide/ide-taskfile.c |    2 ++
 1 file changed, 2 insertions(+)

Index: b/drivers/ide/ide-taskfile.c
===================================================================
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
@@ -433,6 +433,8 @@ static ide_startstop_t task_in_intr(ide_
 
 	/* new way for dealing with premature shared PCI interrupts */
 	if (!OK_STAT(stat, DRQ_STAT, BAD_R_STAT)) {
+		printk(KERN_INFO "%s: %s: stat=%02x\n",
+				 __func__, drive->name, stat);
 		if (stat & (ERR_STAT | DRQ_STAT))
 			return task_error(drive, rq, __FUNCTION__, stat);
 		/* No data yet, so wait for another IRQ. */

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