linux-kernel - Re: 2.6.24-rc6-git7: Reported regressions from 2.6.23

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Date:	Tue, 1 Jan 2008 14:26:06 -0800 (PST)
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
cc:	LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>, Greg KH <greg@...ah.com>,
	James Bottomley <James.Bottomley@...elEye.com>,
	Boaz Harrosh <bharrosh@...asas.com>, Alan Cox <alan@...hat.com>
Subject: Re: 2.6.24-rc6-git7: Reported regressions from 2.6.23



On Tue, 1 Jan 2008, Rafael J. Wysocki wrote:
> 
> Subject	: Could not set non-blocking flag with 2.6.24-rc5
> Submitter	: Tino Keitel <tino.keitel@....de>
> Date		: 2007-12-13 16:27
> References	: http://lkml.org/lkml/2007/12/13/392
> 		  http://bugzilla.kernel.org/show_bug.cgi?id=9557
> Handled-By	: 
> Patch		: 

That strace shows that trying to open /dev/null fails with ENXIO:

	[pid  6050] open("/dev/null", O_RDONLY <unfinished ...>
	[pid  6050] <... open resumed> )        = -1 ENXIO (No such device or address)

and everything goes downhill from there.

It would be worth looking at your /dev/null to see what kind of (broken) 
device node it is, and get a clue about *why* it is broken.

Greg, any udev breakage that could affect /dev/null? 

> Subject	: Problems on booting
> Submitter	: "werner" <werner@...aya.yi.org>
> Date		: 2007-12-22 14:29
> References	: http://lkml.org/lkml/2007/12/22/110
> 		  http://bugzilla.kernel.org/show_bug.cgi?id=9621
> Handled-By	: 
> Patch		: 

Hmm. I assume the "-git6" and "-git7" are 2.6.24-rc4-gitX, ie commits

 - 2.6.24-rc5-git6: 3e3b3916a9c5c28a16528585478de19fea59816b
 - 2.6.24-rc5-git7: fbdcf18df73758b2e187ab94678b30cd5f6ff9f9

and doing a

	gitk 3e3b3916a9..fbdcf18df7

does show a SCSI merge, and two commits that touch drivers/scsi/initio.*.

James, Alan and Boaz, ideas? 

		Linus
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