Date: Sun, 26 Mar 2006 16:15:47 +0100 From: "Joao Barros" <joao.barros@gmail.com> To: freebsd-current@freebsd.org Subject: lockmgr: thread 0xc385ebd0 unlocking unheld lock Message-ID: <70e8236f0603260715u54e4640di18300fa1fd031c4f@mail.gmail.com>
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Last night I was mounting a windows share with mount_smbfs and browsing it via apache and I got the machine to panic twice. I was tired and went to bed. Today I can't replicate the panic but this always happens when I unmount: lockmgr(c36cfb08,2006,c36cfb2c,c35251b0,d5926c00) at lockmgr+0x5c6 smb_co_put(c36cfb00,d5926c00,d5926c00,c35251b0,c3703280) at smb_co_put+0x46 smbfs_unmount(c33f6800,8000000,c35251b0,0,415) at smbfs_unmount+0x71 dounmount(c33f6800,8000000,c35251b0,c0733b28,0) at dounmount+0x286 unmount(c35251b0,d5926d04,c3527234,c,c35251b0) at unmount+0x1f6 syscall(3b,3b,3b,804a465,8201a51) at syscall+0x27e Xint0x80_syscall() at Xint0x80_syscall+0x1f --- syscall (22, FreeBSD ELF32, unmount), eip =3D 0x280c205f, esp =3D 0xbfb= fe54c, eb p =3D 0xbfbfe5f8 --- Another time, a different share: lockmgr: thread 0xc385ebd0 unlocking unheld lock KDB: stack backtrace: kdb_backtrace(c06ca09c,c385ebd0) at kdb_backtrace+0x29 lockmgr(c36ed508,2006,c36ed52c,c385ebd0,dab78c00) at lockmgr+0x5c6 smb_co_put(c36ed500,dab78c00,dab78c00,c385ebd0,c3703280) at smb_co_put+0x46 smbfs_unmount(c33f5400,8000000,c385ebd0,0,415) at smbfs_unmount+0x71 dounmount(c33f5400,8000000,c385ebd0,c0733b28,0) at dounmount+0x286 unmount(c385ebd0,dab78d04,c385d000,c,c385ebd0) at unmount+0x1f6 syscall(3b,3b,3b,804a465,8201a51) at syscall+0x27e Xint0x80_syscall() at Xint0x80_syscall+0x1f --- syscall (22, FreeBSD ELF32, unmount), eip =3D 0x280c205f, esp =3D 0xbfb= fe53c, eb p =3D 0xbfbfe5e8 --- The machine is running CURRENT cvsuped last night with a kernel compiled without a bunch of drivers. I can compile GENERIC if needed. I'm trying to replicate the panic, and if I can I'll post a followup. In the meantime if anyone can provide some insight on this or needs more info I'm more than available. -- Joao Barros
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