Date: Thu, 01 Sep 2011 15:58:55 +0400 From: "Marat N.Afanasyev" <amarat@ksu.ru> To: Andriy Gapon <avg@freebsd.org> Cc: gecko@freebsd.org Subject: Re: firefox-6.0_1 spinning on a cpu Message-ID: <4E5F737F.1070703@ksu.ru> In-Reply-To: <4E5F6753.3070402@FreeBSD.org> References: <4E5F6753.3070402@FreeBSD.org>
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Andriy Gapon wrote: > > I observe the following problem - sometimes a firefox processes starts consuming a > lot of CPU for no apparent reason. > ktrace shows that it does the following: > 9332 179912 firefox-bin 0.000007 CALL poll(0x7fffff5fabc0,0x3,0x3e7fc18) > 9332 179912 firefox-bin 0.000008 RET poll 2 > 9332 179912 firefox-bin 0.000007 CALL gettimeofday(0x7fffff5fadf0,0) > 9332 179912 firefox-bin 0.000007 RET gettimeofday 0 > 9332 179912 firefox-bin 0.000009 CALL gettimeofday(0x7fffff5fadf0,0) > 9332 179912 firefox-bin 0.000018 RET gettimeofday 0 > 9332 179912 firefox-bin 0.000009 CALL > getpeername(0x42,0x7fffff5faa90,0x7fffff5faa4c) > 9332 179912 firefox-bin 0.000008 RET getpeername -1 errno 57 Socket is not > connected > 9332 179912 firefox-bin 0.000008 CALL > getpeername(0x43,0x7fffff5faa90,0x7fffff5faa4c) > 9332 179912 firefox-bin 0.000008 RET getpeername -1 errno 57 Socket is not > connected > 9332 179912 firefox-bin 0.000007 CALL gettimeofday(0x7fffff5fab60,0) > 9332 179912 firefox-bin 0.000008 RET gettimeofday 0 > 9332 179912 firefox-bin 0.000018 CALL poll(0x7fffff5fabc0,0x3,0x3e7fc18) > 9332 179912 firefox-bin 0.000009 RET poll 2 > 9332 179912 firefox-bin 0.000007 CALL gettimeofday(0x7fffff5fadf0,0) > 9332 179912 firefox-bin 0.000008 RET gettimeofday 0 > 9332 179912 firefox-bin 0.000009 CALL gettimeofday(0x7fffff5fadf0,0) > 9332 179912 firefox-bin 0.000007 RET gettimeofday 0 > 9332 179912 firefox-bin 0.000008 CALL > getpeername(0x42,0x7fffff5faa90,0x7fffff5faa4c) > 9332 179912 firefox-bin 0.000014 RET getpeername -1 errno 57 Socket is not > connected > 9332 179912 firefox-bin 0.000008 CALL > getpeername(0x43,0x7fffff5faa90,0x7fffff5faa4c) > 9332 179912 firefox-bin 0.000007 RET getpeername -1 errno 57 Socket is not > connected > 9332 179912 firefox-bin 0.000008 CALL gettimeofday(0x7fffff5fab60,0) > 9332 179912 firefox-bin 0.000007 RET gettimeofday 0 > 9332 179912 firefox-bin 0.000007 CALL poll(0x7fffff5fabc0,0x3,0x3e7fc18) > > and so on. > The two sockets in question (66 and 67) appear as follows in sockstat output: > avg firefox-bi 9332 66 tcp4 92.249.64.71:44862 63.245.217.114:443 > avg firefox-bi 9332 67 tcp4 92.249.64.71:34232 63.245.217.114:443 > Where: > $ host 63.245.217.114 > 114.217.245.63.in-addr.arpa domain name pointer > addons-versioncheck.zlb.phx.mozilla.net. > > So apparently this has something to do with automatic version check for addons. > > I am not sure if this is a general "cross-platform" bug or if it is specific to > FreeBSD in some way. E.g. maybe the error code is unexpected or what poll(2) > returns is different from e.g. Linux. > > Maybe this is already fixed in 6.0.1? > > Anyone gets the same? Anybody has an idea how to fix? > Thank you! I have a seamonkey with the same symptoms, from time to time it eats several cores of my CPU. -- SY, Marat
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