Date: Sat, 30 May 2009 20:55:11 +0000 From: Brandon Gooch <jamesbrandongooch@gmail.com> To: FreeBSD Current <freebsd-current@freebsd.org> Cc: bzeeb+freebsd+lor@zabbadoz.net Subject: LOR acpi_ibm module Message-ID: <179b97fb0905301355n2a422e05j665fc3a551ce06f1@mail.gmail.com>
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lock order reversal: 1st 0xffffffff807cf200 sysctl lock (sysctl lock) @ /usr/src/sys/kern/kern_sysctl.c:1608 2nd 0xffffffff80bf1de0 ACPI IBM extras (ACPI IBM extras) @ /usr/src/sys/modules/acpi/acpi_ibm/../../../dev/acpi_support/acpi_ibm.c:481 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2a _witness_debugger() at _witness_debugger+0x2e witness_checkorder() at witness_checkorder+0x81e _sx_xlock() at _sx_xlock+0x54 acpi_ibm_sysctl() at acpi_ibm_sysctl+0x4f sysctl_root() at sysctl_root+0xe3 userland_sysctl() at userland_sysctl+0x158 __sysctl() at __sysctl+0xaa syscall() at syscall+0x1dd Xfast_syscall() at Xfast_syscall+0xd0 --- syscall (202, FreeBSD ELF64, __sysctl), rip = 0x80073769c, rsp = 0x7fffffffda58, rbp = 0x4 ---
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