Date: Fri, 29 Aug 2003 07:52:43 -0600 From: "Kenneth D. Merry" <ken@kdm.org> To: Maxim Konovalov <maxim@macomnet.ru> Cc: stable@freebsd.org Subject: Re: INVARIANTS panic in -stable Message-ID: <20030829135243.GA36933@panzer.kdm.org> In-Reply-To: <20030829163808.B93371@news1.macomnet.ru> References: <20030829163808.B93371@news1.macomnet.ru>
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On Fri, Aug 29, 2003 at 17:21:08 +0400, Maxim Konovalov wrote: > Something committed between 2003.08.24.00.00.00 and > 2003.08.25.00.00.00 GMT triggers a panic: > > ... > lpt0: <Printer> on ppbus0 > lpt0: Interrupt-driven port > ppi0: <Parallel I/O> on ppbus0 > Waiting 10 seconds for SCSI devices to settle > panic: malloc(M_WAITOK) in interrupt context > Debugger("panic") > Stopped at Debugger+0x34: movb $0,in_Debugger.429 > > db> trace > Debugger(c0250f5b) at Debugger+0x34 > panic(c024f6a0,c02b2bc8,c1383470,c1383000,80286) at panic+0x70 > malloc(2c,c0286100,0,c0279888,c1383470) at malloc+0x27 > sysctl_add_oid(c1383470,c02b2bc8,ffffffff,c0279838,80000001) at > sysctl_add_oid+0x7e > daregister(c1382b80,c0279a9c,6c0800,c0279a9c,80) at daregister+0x18a Yes, this is a known problem. I'm planning to fix it by adding a task queue that runs in a thread context (instead of a software interrupt context) and using that taskqueue to add the sysctl variables. I haven't gotten it working yet, though. Ken -- Kenneth Merry ken@kdm.org
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