Re: 2.6.24 Kernel Soft Lock Up with heavy I/O in dm-crypt

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To: Alasdair G Kergon <agk@...>

Cc: Yan Li <elliot.li.tech@...>, Andrew Morton <akpm@...>, Ritesh Raj Sarraf <rrs@...>, Christophe Saout <christophe@...>, <linux-kernel@...>, <dm-devel@...>, Herbert Xu <herbert@...>, <rjmaomao@...>, <dm-crypt@...>

Subject: Re: 2.6.24 Kernel Soft Lock Up with heavy I/O in dm-crypt

Date: Friday, June 6, 2008 - 2:46 am

Yan Li wrote:
quoted text> On Mon, Jun 02, 2008 at 02:51:04PM +0200, Milan Broz wrote:
>> Patch for 2.6.24 kernel
>> Add cond_resched() to prevent stuck in big bio processing.
> 
> This patch actual has lead to performance _gain_.
hmmm, nice:)

quoted text> With patched kernel, soft lockup _no longer_ occurred.

Alasdair, please could you move this patch back to actual tree
and sent it upstream?

We have at least two separate reports confirming that it fixes
the problem.

Milan
--
mbroz@redhat.com

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Messages in current thread:

2.6.24 Kernel Soft Lock Up with heavy I/O in dm-crypt, Ritesh Raj Sarraf, (Thu Feb 28, 9:54 am)

Re: 2.6.24 Kernel Soft Lock Up with heavy I/O in dm-crypt, Andrew Morton, (Fri Feb 29, 3:20 am)

Re: 2.6.24 Kernel Soft Lock Up with heavy I/O in dm-crypt, Yan Li, (Sun Jun 1, 11:07 pm)

Re: 2.6.24 Kernel Soft Lock Up with heavy I/O in dm-crypt, Milan Broz, (Mon Jun 2, 2:52 am)

Re: 2.6.24 Kernel Soft Lock Up with heavy I/O in dm-crypt, Yan Li, (Mon Jun 2, 8:31 am)

Re: 2.6.24 Kernel Soft Lock Up with heavy I/O in dm-crypt, Milan Broz, (Mon Jun 2, 8:51 am)

Re: 2.6.24 Kernel Soft Lock Up with heavy I/O in dm-crypt, Yan Li, (Thu Jun 5, 6:44 pm)

Re: 2.6.24 Kernel Soft Lock Up with heavy I/O in dm-crypt, Milan Broz, (Fri Jun 6, 2:46 am)

Re: [dm-devel] Re: 2.6.24 Kernel Soft Lock Up with heavy I/O..., Alasdair G Kergon, (Fri Feb 29, 2:46 pm)

Re: [dm-devel] Re: 2.6.24 Kernel Soft Lock Up with heavy I/O..., Ritesh Raj Sarraf, (Fri Feb 29, 2:59 pm)

Re: [dm-devel] Re: 2.6.24 Kernel Soft Lock Up with heavy I/O..., Milan Broz, (Sat Mar 1, 3:30 pm)

Re: [dm-devel] Re: 2.6.24 Kernel Soft Lock Up with heavy I/O..., Milan Broz, (Sat Mar 1, 3:33 pm)

Re: [dm-devel] Re: 2.6.24 Kernel Soft Lock Up with heavy I/O , Ritesh Raj Sarraf, (Thu Mar 6, 10:41 am)

Re: 2.6.24 Kernel Soft Lock Up with heavy I/O in dm-crypt, Herbert Xu, (Fri Feb 29, 2:15 pm)


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Washington Odhiambo	Weird Problem with NAT - more details
Greg Kroah-Hartman	[PATCH 001/196] Chinese: Add the known_regression URI to the HOWTO
Tarkan Erimer	Re: Dual-Licensing Linux Kernel with GPL V2 and GPL V3
Andrew Morton	-mm merge plans for 2.6.23
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linux-netdev:
Jarek Poplawski	[PATCH] pkt_sched: Destroy gen estimators under rtnl_lock().
Gerrit Renker	[PATCH 0/37] dccp: Feature negotiation - last call for comments
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Denys Fedoryshchenko	thousands of classes, e1000 TX unit hang
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Re: 2.6.24 Kernel Soft Lock Up with heavy I/O in dm-crypt

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