Date: Sat, 24 Aug 2013 17:35:00 -0400 From: J David <j.david.lists@gmail.com> To: Konstantin Belousov <kostikbel@gmail.com> Cc: re <re@freebsd.org>, Rick Macklem <rmacklem@uoguelph.ca>, freebsd-stable <freebsd-stable@freebsd.org> Subject: Re: NFS deadlock on 9.2-Beta1 Message-ID: <CABXB=RSUmpQo54fLCgWNs-7vqSTneuxFgv2aSagzVQwzsWqddA@mail.gmail.com> In-Reply-To: <20130824205515.GS4972@kib.kiev.ua> References: <CABXB=RSGrpUr34EdDu_6kab4nDm4NmYAoJZR8MPJOitpVzSNrA@mail.gmail.com> <158996730.12825374.1377265437471.JavaMail.root@uoguelph.ca> <CABXB=RTYZRs2okKu%2B3eZA1twNx%2B2J849Efo-8t=8ZSO3K9sRHw@mail.gmail.com> <20130824174103.GQ4972@kib.kiev.ua> <CABXB=RTLQ5NP1Y35SnF66uSM=eTscJJoy_w3XUGSrFoUvTFMaA@mail.gmail.com> <20130824193814.GR4972@kib.kiev.ua> <CABXB=RTP%2Bv7dXfZW99umbUJTQN2-L07PPfKPkASpf8feO9X43A@mail.gmail.com> <20130824205515.GS4972@kib.kiev.ua>
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On Sat, Aug 24, 2013 at 4:55 PM, Konstantin Belousov <kostikbel@gmail.com> wrote: > On Sat, Aug 24, 2013 at 04:11:09PM -0400, J David wrote: >> On Sat, Aug 24, 2013 at 3:38 PM, Konstantin Belousov >> <kostikbel@gmail.com> wrote: >> > No, at least not without reverting the r254754 first. The IGN_SBUSY patch >> > is not critical there. >> >> There is lots of other stuff in r250907 / reverted by r254754. Some >> of it looks important for sendfile() performance. If testing this >> extensively in the next few days could help get that work back into >> 9.2 we are happy to do it, but if it's too late then we can leave it >> for those on stable/9. > > The revert in the r254754 is only a workaround for your workload, it does > not fix the real issue, which can be reproduced by other means. > > I am not sure would re allow to merge the proper fix, since we are already > somewhere in RC3. Well, let's ask them. :) Thanks!
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