Date: Fri, 06 Nov 2015 11:17:36 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 204330] Lock order reversal in ffs_vnops.c:bufwait Message-ID: <bug-204330-8@https.bugs.freebsd.org/bugzilla/>
next in thread | raw e-mail | index | archive | help
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=204330 Bug ID: 204330 Summary: Lock order reversal in ffs_vnops.c:bufwait Product: Base System Version: 11.0-CURRENT Hardware: amd64 OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: liuw@liuw.name lock order reversal: 1st 0xfffff8000514cd50 ufs (ufs) @ /usr/home/weil/freebsd/sys/kern/vfs_subr.c:2231 2nd 0xfffffe007aa26b80 bufwait (bufwait) @ /usr/home/weil/freebsd/sys/ufs/ffs/ffs_vnops.c:263 3rd 0xfffff8000d254240 ufs (ufs) @ /usr/home/weil/freebsd/sys/kern/vfs_subr.c:2231 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe0094c44e80 witness_checkorder() at witness_checkorder+0xe79/frame 0xfffffe0094c44f00 __lockmgr_args() at __lockmgr_args+0xd3b/frame 0xfffffe0094c44fb0 ffs_lock() at ffs_lock+0xa6/frame 0xfffffe0094c45000 VOP_LOCK1_APV() at VOP_LOCK1_APV+0x100/frame 0xfffffe0094c45030 _vn_lock() at _vn_lock+0x9a/frame 0xfffffe0094c450a0 vget() at vget+0x63/frame 0xfffffe0094c450f0 vfs_hash_get() at vfs_hash_get+0xcc/frame 0xfffffe0094c45140 ffs_vgetf() at ffs_vgetf+0x40/frame 0xfffffe0094c451d0 softdep_sync_buf() at softdep_sync_buf+0xad1/frame 0xfffffe0094c452b0 ffs_syncvnode() at ffs_syncvnode+0x256/frame 0xfffffe0094c45330 ffs_truncate() at ffs_truncate+0x6cd/frame 0xfffffe0094c45520 ufs_direnter() at ufs_direnter+0x7bb/frame 0xfffffe0094c455f0 ufs_makeinode() at ufs_makeinode+0x5f3/frame 0xfffffe0094c457b0 ufs_create() at ufs_create+0x2d/frame 0xfffffe0094c457d0 VOP_CREATE_APV() at VOP_CREATE_APV+0xf1/frame 0xfffffe0094c45800 vn_open_cred() at vn_open_cred+0x2f8/frame 0xfffffe0094c45970 kern_openat() at kern_openat+0x25c/frame 0xfffffe0094c45ae0 amd64_syscall() at amd64_syscall+0x2de/frame 0xfffffe0094c45bf0 Xfast_syscall() at Xfast_syscall+0xfb/frame 0xfffffe0094c45bf0 --- syscall (499, FreeBSD ELF64, sys_openat), rip = 0x800b50c2a, rsp = 0x7fffffffe1a8, rbp = 0x7fffffffe280 --- -- You are receiving this mail because: You are the assignee for the bug.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?bug-204330-8>