Date: Mon, 11 Oct 2010 10:40:11 -0500 From: "Sam Fourman Jr." <sfourman@gmail.com> To: Andriy Gapon <avg@icyb.net.ua> Cc: freebsd-fs@freebsd.org Subject: Re: Locked up processes after upgrade to ZFS v15 Message-ID: <AANLkTikCDxxqf1v9VOMqKZP7wNimq=6fFLDdyDGMDXQ6@mail.gmail.com> In-Reply-To: <4CB32C75.2060000@icyb.net.ua> References: <39F05641-4E46-4BE0-81CA-4DEB175A5FBE@free.de> <20101009111241.GA58948@icarus.home.lan> <CF901B53-657E-49FC-A43B-27BC7D49F7A7@free.de> <4CB17983.3020907@icyb.net.ua> <20101011151508.GA10917@icarus.home.lan> <4CB32C75.2060000@icyb.net.ua>
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> Jeremy, > > were are in a process of debugging this issue with Kai and I think that w= e are > onto something. =A0I would like to ask you for some additional testing. > > What kind of workload do your run? > Do you have anything using sendfile(2)? =A0E.g. Apache with EnableSendfil= e enabled > (it might be by default, without explicit options). > Can you try to disable sendfile(2) use, reboot and see how system behaves= ? > > If you still experience the same problem after doing the above, then I'd = like to > ask you for shell access with root privileges; or establishing communicat= ion via > IM and running some commands for me. > > Thank you! > -- > Andriy Gapon > _______________________________________________ Andriy, I am not sure if this is the same issue, but I have a similar problem running FreeBSD 9-CURRENT amd64 (sources as of 1 hour ago) a zfs lockup appears very frequently, it is a NFS server it locks up several times per day. I have been having these issues since before the ZFSv15 patch was committed to HEAD a few months ago. let me know if you need details, I have no problems giving you root ssh on this machine... but it does not have a serial port. so I am not sure how useful it would be. --=20 Sam Fourman Jr. Fourman Networks http://www.fourmannetworks.com
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