Re: smb related problem

On Thursday 19 April 2007 10:02:13 am Goran Gajic wrote:
> 
> Hi,
> 
> I have just noticed from today build:
> 
> FreeBSD fbsd.interex-pla.net 7.0-CURRENT FreeBSD 7.0-CURRENT #0: Thu Apr 
> 19 11:42:17 CEST 2007 
> root_at_fbsd.interex-pla.net:/usr/src/sys/i386/compile/GENERIC i386
> 
> netsmb_dev: loaded
> smb_co_lock: recursive lock for object 1
> lockmgr: thread 0xc3a39a20 unlocking unheld lock
> KDB: stack backtrace:
> db_trace_self_wrapper(c094fe7e) at db_trace_self_wrapper+0x25
> kdb_backtrace(c094b1d7,c3a39a20) at kdb_backtrace+0x29
> _lockmgr(c367ce08,2006,c367ce38,c3a39a20,c3a6e210,...) at _lockmgr+0x5fa
> smb_co_put(c367ce00,d728ab90,c3678d00,c367ce00,0,...) at smb_co_put+0x50
> smb_sm_lookup(d728ab1c,d728aafc,d728ab90,d728aaf8,d728aafc,...) at 
> smb_sm_lookup+0x11a
> smb_usr_lookup(c2f09400,d728ab90,d728ab8c,d728ab88,c0a9e708,...) at 
> smb_usr_lookup+0x76
> 
nsmb_dev_ioctl(c3678700,82fc6e6a,c2f09400,3,c3a39a20,c0a51488,0,c0948e06,131) 
> at nsmb_dev_ioctl+0x1e5
> giant_ioctl(c3678700,82fc6e6a,c2f09400,3,c3a39a20,...) at giant_ioctl+0x33
> devfs_ioctl_f(c37e8090,82fc6e6a,c2f09400,c3673e80,c3a39a20) at 
> devfs_ioctl_f+0xaf
> kern_ioctl(c3a39a20,3,82fc6e6a,c2f09400) at kern_ioctl+0x1ae
> ioctl(c3a39a20,d728ad00) at ioctl+0xf1
> syscall(d728ad38) at syscall+0x252
> Xint0x80_syscall() at Xint0x80_syscall+0x20
> --- syscall (54, FreeBSD ELF32, ioctl), eip = 0x2815772f, esp = 
> 0xbfbfe40c, ebp = 0xbfbfe738 ---
> 
> I've noticed this when I have tried mount_smbfs..

Can you try this and reply with the stack trace from the panic?

Index: smb_conn.c
===================================================================
RCS file: /usr/cvs/src/sys/netsmb/smb_conn.c,v
retrieving revision 1.18
diff -u -r1.18 smb_conn.c
--- smb_conn.c  6 Nov 2006 13:42:06 -0000       1.18
+++ smb_conn.c  7 Nov 2006 18:42:41 -0000
_at__at_ -351,6 +351,7 _at__at_
        if (smb_co_lockstatus(cp, td) == LK_EXCLUSIVE &&
            (flags & LK_CANRECURSE) == 0) {
                SMBERROR("recursive lock for object %d\n", cp->co_level);
+               panic("rescursive lock for object %p", cp);
                return 0;
        }
        return lockmgr(&cp->co_lock, flags, &cp->co_interlock, td);

-- 
John Baldwin