Date: Sat, 10 Apr 2004 12:54:14 -0500 (CDT) From: "Jon Noack" <noackjr@alumni.rice.edu> To: "Putinas Piliponis" <putinas.piliponis@icnspot.net> Cc: current@freebsd.org Subject: Re: LOR: sys/kern/sys_generic.c:902 sys/fs/specfs/spec_vnops.c:387 Message-ID: <1747.192.168.1.9.1081619654.squirrel@www.noacks.org> In-Reply-To: <001401c41f21$9634efd0$1e64a8c0@spotripoli.local> References: <001401c41f21$9634efd0$1e64a8c0@spotripoli.local>
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Putinas Piliponis wrote: > Hi, with todays kernel I got this: > Sorry if it was already reported... > what about the web page for lor status? > > lock order reversal > 1st 0xc657c838 filedesc structure (filedesc structure) @ > /usr/src/sys/kern/sys_generic.c:902 > 2nd 0xc072d060 Giant (Giant) @ /usr/src/sys/fs/specfs/spec_vnops.c:387 > Stack backtrace: > backtrace(c06bebd7,c072d060,c06ba893,c06ba893,c06b5ac3) at backtrace+0x17 > witness_checkorder(c072d060,9,c06b5ac3,183,c06b8216) at > witness_checkorder+0x707 > _mtx_lock_flags(c072d060,0,c06b5ac3,183,c06bf1e1) at _mtx_lock_flags+0x9b > spec_poll(e7219afc,e7219b1c,c0580726,e7219afc,c07225c0) at spec_poll+0x14a > spec_vnoperate(e7219afc,c07225c0,c64c9e38,40,c2274600) at > spec_vnoperate+0x18 > vn_poll(c64a4bb0,40,c2274600,c64b2690,c2274600) at vn_poll+0x3c > selscan(c64b2690,e7219b9c,e7219b8c,4,4) at selscan+0x11e > kern_select(c64b2690,4,bfbfe4d0,0,0) at kern_select+0x368 > select(c64b2690,e7219d14,14,434,5) at select+0x67 > syscall(2f,2f,2f,ffffffff,0) at syscall+0x271 > Xint0x80_syscall() at Xint0x80_syscall+0x1d > --- syscall (93), eip = 0x282d8e23, esp = 0xbfbfe47c, ebp = 0xbfbfe588 --- I got this same one today. Seems like this one even has a PR: http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/55175 Like I said, I'm not going to put any work into the web page until I find someone to commit a pointer to it when you get a lock order reversal. Otherwise, the page is of limited value (we will still get peppered with questions on the list). Jonhelp
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