Greetings, I've come across the following duplicate free when tracking down the occational page fault panic. (kgdb) x/s panicstr 0xc08a7cc0: "Duplicate free of item 0xc4c9a290 from zone 0xc108c380(16)\n" (kgdb) bt #0 0xc05de3bd in doadump () #1 0xc05de964 in boot () #2 0xc05dedf8 in panic () #3 0xc075062b in uma_dbg_free () #4 0xc074f448 in uma_zfree_arg () #5 0xc05cd536 in free () #6 0xc0735a30 in ffs_close_ea () #7 0xc0736131 in ffs_getextattr () #8 0xc06751a7 in vn_extattr_get () #9 0xc0739086 in ufs_getacl () #10 0xc07433c6 in ufs_access () #11 0xc0655a18 in vfs_cache_lookup () #12 0xc07d48fd in VOP_LOOKUP_APV () #13 0xc065be19 in lookup () #14 0xc065cdce in namei () #15 0xc066bb6d in kern_statat_vnhook () #16 0xc066bcaf in kern_statat () #17 0xc066bce7 in kern_lstat () #18 0xc066bd7b in lstat () #19 0xc07c44ec in syscall () #20 0xc07aaab0 in Xint0x80_syscall () #21 0x00000033 in ?? () Previous frame inner to this frame (corrupt stack?) The source tree is csupped at 2009-02-22T12:00:00Z. I think the problem is that ffs_getextattr() depends on vp's being exclusively locked but that no longer is true when ufs_access() are going to retrieve an ACL. Virtually yours, -- -|-__ YAMAMOTO, Taku | __ < <taku_at_tackymt.homeip.net> - A chicken is an egg's way of producing more eggs. -Received on Sat Mar 07 2009 - 18:32:52 UTC
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