Re: Call for testers, vfs changes. (fixed)

From: Jeff Roberson (jroberson_at_chesapeake.net)
Date: 03/12/05

  • Next message: Philippe PEGON: "Panic with amr and 5.4-PRERELEASE" 
    Date: Sat, 12 Mar 2005 04:39:23 -0500 (EST)
To: Jeremie Le Hen <jeremie@le-hen.org>

    On Fri, 11 Mar 2005, Jeremie Le Hen wrote:

    > Hi Jeff,
    >
    > > I have a patch at http://www.chesapeake.net/~jroberson/vgone.diff that
    > > greatly simplifies the vnode teardown code, and should fix some of the
    > > races that have been seen with smp vfs enabled. I would appreciate any
    > > testing people can offer. See the thread on arch@ for details.

    I updated the patch at the same location.

    >
    > I applied your patch yesterday, and I got a panic during the night. My
    > ssh session froze at about 3:02am, so I guess it's happened during daily
    > periodic(8).
    >
    > This is hand written:
    >
    > %%%
    > panic: lockmgr: unknown locktype request 0
    > KDB: stack backtrace:
    > kdb_backtrace(c0707071,c0763000,c0705327,d50d2c0c,100) at kdb_backtrace+0x2e
    > panic(c0705327,0,c07051f4,1d2,c18fc320)
    > lockmgr(c1928164,10000,c1928188,c18fc320,d50d2c5c) at lockmgr+0x563
    > vop_stdlock(d50d2cc4,0,d50d2c94,c1928110,d50d2c7c) at vop_stdlock+0x2f
    > VOP_LOCK_APV(c074d780,d50d2cc4,c070df3b,d50d2c94,d50d2cc4) at VOP_LOCK_APV+0xbc
    > ffs_lock(d50d2cc4,c1928110,28,c1928110,d50d2ce0) at ffs_lock+0x90
    > VOP_LOCK_APV(c074d180,d50d2cc4,c070df3b,235,c18fc320) at VOP_LOCK_APV+0xbc
    > vlrureclaim(c184e800,10,c0768ce0,c18fc320,3e8) at vlrureclaim+0x1c1
    > vnlru_proc(0,d50d2d48,c0704615,30e,0) at vnlru_proc+0x19f
    > fork_exit(c0599db0,0,d50d2d48) at fork_exit+0xc6
    > fork_trampoline() at fork_trampoline+0x8
    > --- trap 0x1, eip = 0, esp = 0xd50d2d7c, ebp = 0 ---
    > KDB: enter: panic
    > [thread pid 45 tid 100062 ]
    > Stopped at kdb_enter+Xà30: leave
    > db> show lockedvnods
    > Locked vnodes
    >
    > 0xc348880: tag ufs, type VDIR
    > usecount 2, writecount 0, refcount 1 mountedhere 0
    > flags ()
    > v_object 0xc34b3ce4 ref 0 pages 1
    > lock type ufs: EXCL (count 1) by thread 0xc2056000 (pid 2137)
    > ino 34539, on dev ad0s1e
    > db> show all procs
    > [ pid 2137 is find(1) ]
    > %%%
    >
    > A dump is available, please contact me off-list to get it.
    >
    > I hope this will help. Thanks for your work.
    >
    > Regards,
    > --
    > Jeremie Le Hen
    > < jeremie at le-hen dot org >< ttz at chchile dot org >
    > _______________________________________________
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  • Next message: Philippe PEGON: "Panic with amr and 5.4-PRERELEASE"

    Relevant Pages

    • Re: Call for testers, vfs changes.
      ... On Fri, 11 Mar 2005, Jeremie Le Hen wrote: ... >> greatly simplifies the vnode teardown code, and should fix some of the ... I just left a flag ...
      (freebsd-current)
    • Re: Call for testers, vfs changes.
      ... > greatly simplifies the vnode teardown code, and should fix some of the ... Locked vnodes ... Jeremie Le Hen ... < jeremie at le-hen dot org>< ttz at chchile dot org> ...
      (freebsd-current)