From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <41E8F7F7.1010908@yahoo.com.au> Date: Sat, 15 Jan 2005 22:01:11 +1100 From: Nick Piggin MIME-Version: 1.0 Subject: Re: Odd kswapd behaviour after suspending in 2.6.11-rc1 References: <20050113061401.GA7404@blackham.com.au> <41E61479.5040704@yahoo.com.au> <20050113085626.GA5374@blackham.com.au> <20050113101426.GA4883@blackham.com.au> <41E8ED89.8090306@yahoo.com.au> <1105785254.13918.4.camel@desktop.cunninghams> <41E8F313.4030102@yahoo.com.au> <1105786115.13918.9.camel@desktop.cunninghams> In-Reply-To: <1105786115.13918.9.camel@desktop.cunninghams> Content-Type: multipart/mixed; boundary="------------070303030109030502040501" Sender: owner-linux-mm@kvack.org Return-Path: To: ncunningham@linuxmail.org Cc: Bernard Blackham , Linux Memory Management List-ID: This is a multi-part message in MIME format. --------------070303030109030502040501 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Nigel Cunningham wrote: > Hi Nick. > > On Sat, 2005-01-15 at 21:40, Nick Piggin wrote: > >>I've seen try to do order 8 allocations or something almost as >>ridiculous. Atomic too. > > > I believe you. But Bernard and I are dealing with Suspend2. > Sorry, indeed you are. My mistake. > >>Well, correction, I've seen _reports_. Never tried swsusp myself. > > > :> > >>I don't think a few order 0 and 1 allocations would do any harm >>because otherwise every man and his dog would be having problems. > > > Yes. Suspend2 does allocate a large number of zero order allocations for > submitting I/O, but again, they're all freed prior to thawing frozen > processes. > Hmm. I wouldn't have thought that should be a problem. Obviously something is just irritating a bug somewhere. > >>>>Thanks for the report... I'll come up with something for you to try >>>>in the next day or so. >>> >>> >>>I'm flying to America on Monday, but I'll try to keep up with the >>>progress in this and do anything I can to help. >>> >> >>It is basically a problem with one of my patches. I should be able >>to fix it (although fixing swsusp would be nice too :) ). > > > :> Nevertheless, if there's something suspend2 related I should fix... > I wouldn't suspect so, but we'll see... How do I get my hands on suspend2? Also, Bernard, can you try running with the following patch and see what output it gives when you reproduce the problem? Thanks a lot, Nick --------------070303030109030502040501 Content-Type: text/plain; name="kswapd-debug" Content-Transfer-Encoding: base64 Content-Disposition: inline; filename="kswapd-debug" SW5kZXg6IGxpbnV4LTIuNi9tbS92bXNjYW4uYwo9PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09Ci0tLSBsaW51eC0y LjYub3JpZy9tbS92bXNjYW4uYwkyMDA1LTAxLTE1IDIxOjU0OjI0LjU3OTEzNDI5NCArMTEw MAorKysgbGludXgtMi42L21tL3Ztc2Nhbi5jCTIwMDUtMDEtMTUgMjE6NTY6NTEuNzE5MzU1 OTI5ICsxMTAwCkBAIC0xMTgyLDYgKzExODIsNyBAQAogCQl9CiAJCWZpbmlzaF93YWl0KCZw Z2RhdC0+a3N3YXBkX3dhaXQsICZ3YWl0KTsKIAorCQlwcmludGsoImtzd2FwZDogYmFsYW5j ZV9wZ2RhdCwgb3JkZXIgPSAlbHVcbiIsIG9yZGVyKTsKIAkJYmFsYW5jZV9wZ2RhdChwZ2Rh dCwgMCwgb3JkZXIpOwogCX0KIAlyZXR1cm4gMDsK --------------070303030109030502040501-- -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: aart@kvack.org