Date: Mon, 11 Sep 2000 10:39:46 +0100 From: Bob Bishop <rb@gid.co.uk> To: smp@freebsd.org Subject: SMPng box wedges repeatably Message-ID: <l03130302b5e25465094b@[194.32.164.2]>
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Hi, Seems that I can repeatably wedge an MP box running SMPng (yesterday's -current) under the following conditions. It's doing a buildworld -j8 getting its sources via NFS from box B, its /usr/obj from box C and also NFS-serving /usr/obj for box C which is also buildworlding; so there's quite a lot of NFS activity. It's also running a couple of dnetcs. Symptoms are as if the scheduler is wedged: I can ping the box and get into DDB, but nothing is happening in userland. According to ps in DDB the dnetcs are runnable as are half a dozen shells presumably just spawned by make. Eveything else is waiting, a few in ffsvgt or inode, a bunch of shells in wait, a bunch of makes in select, ... DDB trace gives: (debugger) ^ | atkbd_isa_intr() ithd_loop(0) fork_trampoline() .. which doesn't seem very useful. Anyone want more information from this corpse before I turn off its life-support? -- Bob Bishop (0118) 977 4017 international code +44 118 rb@gid.co.uk fax (0118) 989 4254 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-smp" in the body of the messagehelp
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