Date: Wed, 26 Jul 2006 19:13:34 +0100 (BST) From: Robert Watson <rwatson@FreeBSD.org> To: Munehiro Matsuda <haro@h4.dion.ne.jp> Cc: freebsd-current@freebsd.org Subject: Re: Panic with recent uipc changes? Message-ID: <20060726191125.T56364@fledge.watson.org> In-Reply-To: <20060727.025058.07646261.haro@h4.dion.ne.jp> References: <20060727.025058.07646261.haro@h4.dion.ne.jp>
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This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. --0-1770554632-1153937614=:56364 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed On Thu, 27 Jul 2006, Munehiro Matsuda wrote: > Hi Robert Watson, > > Recent changes to uipc, the UNIX domain sockets, seems to cause my -current > laptop to panic and reboot whenever I stop emacs. > > Is there anything I can do to help debug this? I think that the information you attached is sufficient. Could you try removing the call to soisdisconnected() in uipc_detach()? It should now occur in the close path. Patch attached. Robert N M Watson Computer Laboratory University of Cambridge > > =-------------------------------------------------------------------------- > kdb_backtrace(2,c378569c,c,c3488d80,de34fa10,...) at kdb_backtrace+0x29 > witness_warn(5,0,c07208c5) at witness_warn+0x192 > trap(c07b0008,28,c06f0028,c357c9dc,c357c914,...) at trap+0x108 > calltrap() at calltrap+0x5 > --- trap 0xc, eip = 0xc050fc8e, esp = 0xde34fa58, ebp = 0xde34fa58 --- > knlist_mtx_locked(0) at knlist_mtx_locked+0x6 > knote(c357c9dc,0,1,c357c9f4,c357c914,...) at knote+0x1d > sowakeup(c357c914,c357c9d0) at sowakeup+0x61 > soisdisconnected(c357c914,c357c9f4,c357c914,0,de34fad4,...) at soisdisconnected+0xdc > uipc_detach(c357c914) at uipc_detach+0xe3 > sofree(c357c914) at sofree+0x27b > soclose(c357c914) at soclose+0x2d9 > soo_close(c359eb88,c3488d80) at soo_close+0x4b > fdrop_locked(c359eb88,c3488d80,c2dfa220,0,c06f91cb,...) at fdrop_locked+0x88 > fdrop(c359eb88,c3488d80,6b5,c0777974,0,...) at fdrop+0x24 > closef(c359eb88,c3488d80) at closef+0x367 > fdfree(c3488d80) at fdfree+0x4a3 > exit1(c3488d80,0,de34fd30,c06b8cea,c3488d80,...) at exit1+0x420 > exit1(c3488d80,de34fd04) at exit1 > syscall(58de003b,827003b,bfbf003b,bfbfdce0,bfbfdce0,...) at syscall+0x27e > Xint0x80_syscall() at Xint0x80_syscall+0x1f > --- syscall (1, FreeBSD ELF32, sys_exit), eip = 0x284da41b, esp = 0xbfbfdc7c, ebp = 0xbfbfdc98 --- > > > Fatal trap 12: page fault while in kernel mode > cpuid = 0; apic id = 00 > fault virtual address = 0x10 > fault code = supervisor read, page not present > instruction pointer = 0x20:0xc050fc8e > stack pointer = 0x28:0xde34fa58 > frame pointer = 0x28:0xde34fa58 > code segment = base 0x0, limit 0xfffff, type 0x1b > = DPL 0, pres 1, def32 1, gran 1 > processor eflags = interrupt enabled, resume, IOPL = 0 > current process = 39065 (emacs) > trap number = 12 > panic: page fault > cpuid = 0 > KDB: enter: panic > =-------------------------------------------------------------------------- > > > Thanks in advance, > Haro > =------------------------------------------------------------------------------ > _ _ Munehiro (haro) Matsuda > -|- /_\ |_|_| Internet Solution Dept., KGT Inc. > /|\ |_| |_|_| 2-8-8 Shinjuku Shinjuku-ku Tokyo 160-0022, Japan > Tel: +81-3-3225-0767 Fax: +81-3-3225-0740 > Email: haro@kgt.co.jp > --0-1770554632-1153937614=:56364 Content-Type: TEXT/plain; charset=US-ASCII; name=20060726-uipc_detach.diff Content-Transfer-Encoding: BASE64 Content-ID: <20060726191334.D56364@fledge.watson.org> Content-Description: Content-Disposition: attachment; filename=20060726-uipc_detach.diff SW5kZXg6IHVpcGNfdXNycmVxLmMNCj09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT0N ClJDUyBmaWxlOiAvem9vL2N2c3VwL0ZyZWVCU0QtQ1ZTL3NyYy9zeXMva2Vy bi91aXBjX3VzcnJlcS5jLHYNCnJldHJpZXZpbmcgcmV2aXNpb24gMS4xODEN CmRpZmYgLXUgLXIxLjE4MSB1aXBjX3VzcnJlcS5jDQotLS0gdWlwY191c3Jy ZXEuYwkyNCBKdWwgMjAwNiAxNToyMDowNyAtMDAwMAkxLjE4MQ0KKysrIHVp cGNfdXNycmVxLmMJMjYgSnVsIDIwMDYgMTg6MTE6MjIgLTAwMDANCkBAIC00 NDMsNyArNDQzLDYgQEANCiAJCXN0cnVjdCB1bnBjYiAqcmVmID0gTElTVF9G SVJTVCgmdW5wLT51bnBfcmVmcyk7DQogCQl1bnBfZHJvcChyZWYsIEVDT05O UkVTRVQpOw0KIAl9DQotCXNvaXNkaXNjb25uZWN0ZWQodW5wLT51bnBfc29j a2V0KTsNCiAJdW5wLT51bnBfc29ja2V0LT5zb19wY2IgPSBOVUxMOw0KIAls b2NhbF91bnBfcmlnaHRzID0gdW5wX3JpZ2h0czsNCiAJVU5QX1VOTE9DSygp Ow0K --0-1770554632-1153937614=:56364--
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