Date: Mon, 26 Oct 2009 10:52:39 -0500 From: Jaime Bozza <jbozza@mindsites.com> To: Arnaud Houdelette <arnaud.houdelette@tzim.net> Cc: "freebsd-stable@freebsd.org" <freebsd-stable@freebsd.org>, Jacob Myers <jacob@whotookspaz.org> Subject: RE: Possible scheduler (SCHED_ULE) bug? Message-ID: <CF092998EA82AE4D83AF9C9ECA9A8BDE02EB411A99@ATLAS.msg.local> In-Reply-To: <4AE59FBE.6060904@tzim.net> References: <CF092998EA82AE4D83AF9C9ECA9A8BDE02EB411A85@ATLAS.msg.local> <d5992baf0910231149qa4e89fdx2e1cde9b2a529cd3@mail.gmail.com> <CF092998EA82AE4D83AF9C9ECA9A8BDE02EB411A8E@ATLAS.msg.local> <4AE2232E.10406@whotookspaz.org> <CF092998EA82AE4D83AF9C9ECA9A8BDE02EB411A8F@ATLAS.msg.local> <4AE59FBE.6060904@tzim.net>
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From: Arnaud Houdelette [mailto:arnaud.houdelette@tzim.net] > I haven't tried larger files - Maybe the boundary is different on amd64? = Doing some quick tests > right now, I was able to upload a 100MB file without a problem, but this = is an AMD64 system with SMP, > plus the filesystem is all ZFS, so there are too many things different. = I'll have to setup a system > that closely mirrors the rest of my tests (UFS, ULE, no SMP, etc) before = I can say I'm not having a > problem there. > > > > Jaime > > > I had the same issue using 7.1 amd64, with ZFS, no SMP. > Not really sure what is the size boundary. I can't really test either, > as the machine is remote. > But I confirm that each tentative upload of certain relatively 'big' > files (around 1MB) with wordpress hanged the system before I switched > from sendfile to writev. >=20 > I might do some test on amd64 7.2 with no SMP if it can be of any use ? >=20 > Arnaud I was able to duplicate the problem on 7.2-STABLE amd64 no SMP - Problem di= dn't seem to happen with SMP on. While I wasn't able to get a crash dump, = the crash looked similar. Jaime
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