Date: Wed, 28 Jul 2004 00:33:20 +0200 From: "Willem Jan Withagen" <wjw@withagen.nl> To: <current@FreeBSD.ORG> Cc: bzeeb+freebsd+lor@zabbadoz.net Subject: Fatal LOR: PV ENTRY (UMA zone) @ /home2/src/sys/vm/uma_core.c:2033 Message-ID: <022801c47429$b8957420$471b3dd4@digiware.nl>
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Running on amd64: lock order reversal 1st 0xffffff007fed7c10 PV ENTRY (UMA zone) @ /home2/src/sys/vm/uma_core.c:2033 2nd 0xffffffff8063dce0 UMA pcpu (UMA pcpu) @ /home2/src/sys/vm/uma_core.c:2015 KDB: stack backtrace: kdb_backtrace() at kdb_backtrace+0x34 witness_checkorder() at witness_checkorder+0x613 _mtx_lock_flags() at _mtx_lock_flags+0x68 uma_zfree_arg() at uma_zfree_arg+0x80 namei() at namei+0x15c vn_open_cred() at vn_open_cred+0x285 vn_open() at vn_open+0x17 kern_open() at kern_open+0x101 open() at open+0x18 syscall() at syscall+0x330 Xfast_syscall() at Xfast_syscall+0xa8 --- syscall (5, FreeBSD ELF64, open), rip = 0x76d75c, rsp = 0x7fffffffe088, rbp = 0x7fffffffe0c0 --- And right followed by.... panic: lock (sleep mutex) Giant not locked @ /home2/src/sys/kern/vfs_syscalls.c: 959 cpuid = 0; KDB: stack backtrace: kdb_backtrace() at kdb_backtrace+0x34 panic() at panic+0x1d2 witness_unlock() at witness_unlock+0xdd _mtx_unlock_flags() at _mtx_unlock_flags+0x68 kern_open() at kern_open+0x128 open() at open+0x18 syscall() at syscall+0x330 Xfast_syscall() at Xfast_syscall+0xa8 --- syscall (5, FreeBSD ELF64, open), rip = 0x76d75c, rsp = 0x7fffffffe088, rbp = 0x7fffffffe0c0 --- KDB: enter: panic [thread 100316] Stopped at kdb_enter+0x2e: nop --WjW
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