Date: Thu, 16 Sep 2004 11:50:03 +0300 (EEST) From: Achilleus Mantzios <achill@matrix.gatewaynet.com> To: Alexey Zelkin <phantom@FreeBSD.org.ua> Cc: freebsd-java@freebsd.org Subject: Re: WARNING: -server JVM on recent 5.x/6.x (was: Re: jdk14 & tomcat-5.0, JVM stops and consumes 100% CPU) Message-ID: <Pine.LNX.4.44.0409161146370.2205-100000@matrix.gatewaynet.com> In-Reply-To: <20040916091725.GA11080@phantom.cris.net>
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O Alexey Zelkin έγραψε στις Sep 16, 2004 : > Gentelmen, > > Since gcc 3.4 import -server JVM is imfunctionable. It fails very early > and very hard to debug. Most likely it is some gcc optiomization related > problem. I am working on this now, but very slowly (because of > requirement to recompile everything on every change). > > Conclusion: Do not use -server switch for any java applications while > running CURRENT or RELENG_5 now! Right, but what about eclipse? On my gcc 3.4.2 5.3-BETA2, a freshly built jdk1.4.2-p6 will also fail to run eclipse where no -server issue is involved. Maybe the whole gcc34 situation is somehow problematic. > > On Mon, Sep 13, 2004 at 03:05:31PM +0200, Palle Girgensohn wrote: > > Hi! > > > > I have a problem with jdk14 + tomcat, and believe it is the HotSpot Server > > VM that fails. > > > > We're running jdk + tomcat. > > > > After running for hours or days, suddenly the JVM stop and consumes 100% > > CPU cycles. This can go on for a minute, sometimes ten, then its back to > > normal. > > > > All access are routed via apache & mod_jk, and mod_jk's log says: > > > > [Mon Sep 13 11:38:49 2004] [jk_ajp_common.c (1303)]: ERROR: Client > > connection aborted or network problems > > > > repeatedly when the problem occurs. > > > > I log apache with %T (service time in seconds) and it reveals that apache > > has to wait for the JVM. > > > > I suspected Garbage collection, but a log of GC (-Xloggc:/tmp/filename) > > reveals nothing special. > > > > top reveals 100% CPU usage for java. I truss:ed a JVM before restarting, > > output attached, although it doesn't really make any sense... > > > > There is no extra load on the machine at the time, it can happen to an > > almost idle system. I've seen it happen when the first request after an > > idle period happens, and also under normal, pretty constant load. > > > > Removing `-server' from java's option list seems to also remove the > > problem, so I guess there's a bug in the HotSpot Server VM? Any ideas, how > > can I help debugging? > > > > jdk-1.4.2p6_4 > > tomcat-5.0.24 > > FreeBSD-4.10 > > apache+mod_ssl-1.3.31+2.8.18_4 > > mod_jk-1.2.5_1,1 > > > > This happens on several different machines, same setup > > > > /Palle > > > ;; This buffer is for notes you don't want to save, and for Lisp evaluation. > > ;; If you want to create a file, first visit that file with C-x C-f, > > ;; then enter the text in that file's own buffer. > > > > SIGNAL 27 > > gettimeofday(0x281057a8,0x0) = 0 (0x0) > > sigprocmask(0x3,0x28105818,0x0) = 0 (0x0) > > poll(0x805f000,0x3,0x0) = 0 (0x0) > > sigreturn(0x88ab8e0) ERR#185360396 'Unknown error: 185360396' > > SIGNAL 27 > > SIGNAL 27 > > gettimeofday(0x281057a8,0x0) = 0 (0x0) > > sigprocmask(0x3,0x28105818,0x0) = 0 (0x0) > > poll(0x805f000,0x3,0x0) = 0 (0x0) > > sigreturn(0x88ab8e0) ERR#185360396 'Unknown error: 185360396' > > SIGNAL 27 > > SIGNAL 27 > > gettimeofday(0x281057a8,0x0) = 0 (0x0) > > sigprocmask(0x3,0x28105818,0x0) = 0 (0x0) > > poll(0x805f000,0x3,0x0) = 0 (0x0) > > sigreturn(0x88ab8e0) = 17548 (0x448c) > > SIGNAL 27 > > SIGNAL 27 > > gettimeofday(0x281057a8,0x0) = 0 (0x0) > > sigprocmask(0x3,0x28105818,0x0) = 0 (0x0) > > poll(0x805f000,0x3,0x0) = 0 (0x0) > > sigreturn(0x88ab8e0) ERR#185360396 'Unknown error: 185360396' > > SIGNAL 27 > > SIGNAL 27 > > gettimeofday(0x281057a8,0x0) = 0 (0x0) > > sigprocmask(0x3,0x28105818,0x0) = 0 (0x0) > > poll(0x805f000,0x3,0x0) = 0 (0x0) > > gettimeofday(0x88eee44,0x0) = 0 (0x0) > > gettimeofday(0x88eeeb4,0x0) = 0 (0x0) > > poll(0x88f0400,0x0,0x0) = 0 (0x0) > > sigreturn(0x88ab8e0) = 185446412 (0xb0db00c) > > SIGNAL 27 > > SIGNAL 27 > > gettimeofday(0x281057a8,0x0) = 0 (0x0) > > sigprocmask(0x3,0x28105818,0x0) = 0 (0x0) > > poll(0x805f000,0x3,0x0) = 0 (0x0) > > sigreturn(0x88ab8e0) ERR#185360396 'Unknown error: 185360396' > > SIGNAL 27 > > SIGNAL 27 > > gettimeofday(0x281057a8,0x0) = 0 (0x0) > > sigprocmask(0x3,0x28105818,0x0) = 0 (0x0) > > poll(0x805f000,0x3,0x0) = 0 (0x0) > > sigreturn(0x88ab8e0) = 185446412 (0xb0db00c) > > SIGNAL 27 > > SIGNAL 27 > > gettimeofday(0x281057a8,0x0) = 0 (0x0) > > sigprocmask(0x3,0x28105818,0x0) = 0 (0x0) > > poll(0x805f000,0x3,0x0) = 0 (0x0) > > sigreturn(0x88ab8e0) ERR#185360396 'Unknown error: 185360396' > > SIGNAL 27 > > SIGNAL 27 > > gettimeofday(0x281057a8,0x0) = 0 (0x0) > > sigprocmask(0x3,0x28105818,0x0) = 0 (0x0) > > poll(0x805f000,0x3,0x0) = 0 (0x0) > > sigreturn(0x88ab8e0) ERR#185360396 'Unknown error: 185360396' > > SIGNAL 27 > > SIGNAL 27 > > gettimeofday(0x281057a8,0x0) = 0 (0x0) > > sigprocmask(0x3,0x28105818,0x0) = 0 (0x0) > > poll(0x805f000,0x3,0x0) = 0 (0x0) > > sigreturn(0x88ab8e0) ERR#185360396 'Unknown error: 185360396' > > SIGNAL 27 > > SIGNAL 27 > > gettimeofday(0x281057a8,0x0) = 0 (0x0) > > sigprocmask(0x3,0x28105818,0x0) = 0 (0x0) > > poll(0x805f000,0x3,0x0) = 0 (0x0) > > gettimeofday(0x88eee44,0x0) = 0 (0x0) > > gettimeofday(0x88eeeb4,0x0) = 0 (0x0) > > poll(0x88f0400,0x0,0x0) = 0 (0x0) > > sigreturn(0x88ab8e0) ERR#185360396 'Unknown error: 185360396' > > SIGNAL 27 > > SIGNAL 27 > > gettimeofday(0x281057a8,0x0) = 0 (0x0) > > sigprocmask(0x3,0x28105818,0x0) = 0 (0x0) > > poll(0x805f000,0x3,0x0) = 0 (0x0) > > sigreturn(0x88ab8e0) ERR#185360396 'Unknown error: 185360396' > > > _______________________________________________ > > freebsd-java@freebsd.org mailing list > > http://lists.freebsd.org/mailman/listinfo/freebsd-java > > To unsubscribe, send any mail to "freebsd-java-unsubscribe@freebsd.org" > > _______________________________________________ > freebsd-java@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-java > To unsubscribe, send any mail to "freebsd-java-unsubscribe@freebsd.org" > -- -Achilleus
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