LOR acpi_ibm module

[Felix Stolba]

Brandon Gooch schrieb:
> 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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>   
I'm getting the same LOR at boot in 9.0-current (source from 7th of
september).