Re: SUJ panic on new directory rename

Is this core updates somewhere? (With, possibly, a copy of your kernel
binaries?)

Attilio

2010/7/3 Mateusz Guzik <mjguzik_at_gmail.com>:
> Hi,
>
> I've got the following panic while running kernel as of r209343:
>
> Kernel page fault with the following non-sleepable locks held:
> exclusive sleep mutex Softdep Lock (Softdep Lock) r = 0 (0xc0a89ff8)
> locked _at_ /srv/respos/freebsd/sys/ufs/ffs/ffs_softdep.c:7124
>
> free_jremref (jremref=0x0) at /srv/repos/freebsd/sys/ufs/ffs/ffs_softdep.c:3553
> 3553            if (jremref->jr_ref.if_jsegdep)
> (kgdb) bt
> #0  free_jremref (jremref=0x0) at
> /srv/repos/freebsd/sys/ufs/ffs/ffs_softdep.c:3553
> #1  0xc078e536 in cancel_diradd (dap=0xc1bd9880, dirrem=0xc1cc6380,
> jremref=0x0, dotremref=0xc1cc4480,
>    dotdotremref=0x0) at /srv/repos/freebsd/sys/ufs/ffs/ffs_softdep.c:6765
> #2  0xc078eb14 in newdirrem (bp=0xc3b560cc, dp=0xc1cb77b4,
> ip=0xc1e617b4, isrmdir=0x1, prevdirremp=0xc838c914)
>    at /srv/repos/freebsd/sys/ufs/ffs/ffs_softdep.c:7188
> #3  0xc078ebb3 in softdep_setup_directory_change (bp=0xc3b560cc,
> dp=0xc1cb77b4, ip=0xc1e617b4, newinum=0xb803,
>    isrmdir=0x1) at /srv/repos/freebsd/sys/ufs/ffs/ffs_softdep.c:7254
> #4  0xc07a6969 in ufs_dirrewrite (dp=0xc1cb77b4, oip=0xc1e617b4,
> newinum=0xb803, newtype=0x4, isrmdir=0x1)
>    at /srv/repos/freebsd/sys/ufs/ufs/ufs_lookup.c:1269
> #5  0xc07afe10 in ufs_rename (ap=0xc838cbec) at
> /srv/repos/freebsd/sys/ufs/ufs/ufs_vnops.c:1429
> #6  0xc0839d05 in VOP_RENAME_APV (vop=0xc08e1320, a=0xc838cbec) at
> vnode_if.c:1474
> #7  0xc062f0a7 in kern_renameat (td=0xc1e8a280, oldfd=0xffffff9c,
> old=0x8048507 "foo", newfd=0xffffff9c,
>    new=0x8048503 "bar", pathseg=UIO_USERSPACE) at vnode_if.h:636
> #8  0xc062f256 in kern_rename (td=0xc1e8a280, from=0x8048507 "foo",
> to=0x8048503 "bar", pathseg=UIO_USERSPACE)
>    at /srv/repos/freebsd/sys/kern/vfs_syscalls.c:3574
> #9  0xc062f289 in rename (td=0xc1e8a280, uap=0xc838ccec) at
> /srv/repos/freebsd/sys/kern/vfs_syscalls.c:3551
> #10 0xc05cf6b6 in syscallenter (td=0xc1e8a280, sa=0xc838cce4) at
> /srv/repos/freebsd/sys/kern/subr_trap.c:335
> #11 0xc081829f in syscall (frame=0xc838cd28) at
> /srv/repos/freebsd/sys/i386/i386/trap.c:1060
> #12 0xc07ffd70 in Xint0x80_syscall () at
> /srv/repos/freebsd/sys/i386/i386/exception.s:261
> #13 0xbfbfed9c in ?? ()
>
> This can be easly reproduced by running this program:
> http://student.agh.edu.pl/~mjguzik/rename.c
>
> Thanks,
> --
> Mateusz Guzik <mjguzik_at_gmail.com>
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