linux-kernel - Re: [PATCH] gdth: bugfix for the at-exit problems

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <47B469E3.4080403@panasas.com>
Date:	Thu, 14 Feb 2008 18:18:43 +0200
From:	Boaz Harrosh <bharrosh@...asas.com>
To:	James Bottomley <James.Bottomley@...senPartnership.com>
CC:	Sven Köhler <skoehler@....de>,
	Christoph Hellwig <hch@...radead.org>,
	Jeff Garzik <jeff@...zik.org>,
	linux-scsi <linux-scsi@...r.kernel.org>,
	linux-kernel@...r.kernel.org, Joerg Dorchain <joerg@...chain.net>,
	Jon Chelton <jchelton@...global.com>,
	Stefan Priebe - allied internet ag 
	<s.priebe@...ied-internet.ag>
Subject: Re: [PATCH] gdth: bugfix for the at-exit problems

On Thu, Feb 14 2008 at 18:10 +0200, James Bottomley <James.Bottomley@...senPartnership.com> wrote:
> On Thu, 2008-02-14 at 13:58 +0200, Boaz Harrosh wrote:
>> This is a bugfix for the 2.6.24.x stable releases.
>>
>> gdth_exit would first remove all cards then stop the timer
>> and would not sync with the timer function. This caused a crash
>> in gdth_timer() when module was unloaded.
>> So del_timer_sync the timer before we delete the cards.
>>
>> also the reboot notifier function would crash. So unify
>> the exit and halt functions with a gdth_shutdown() that's
>> called by both.
> 
> The patch looks fine now, thanks.  Can we actually get a tester just to
> make sure there's nothing I missed.
> 
> James
> 
> 

Yes, and the tester reported, a breakage. We are on it.
Apparently, you cannot do a full deallocation of resources
at reboot notifier, nor would you want to I guess.

But you can do the flush. The exit call is never called
on a reboot and the card access is valid to the end.

Please comment?

So I pretty much reverted that patch, but did leave some
cleanups.

Also we found the other problems reported with user-mode tools
and cat /proc/sys/gdth/0

so 2 patches on the way above reverted. Give us a few ours to test
every thing.

Thanks
Boaz

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/