Date: Sat, 30 May 2009 20:51:20 +0000 From: Brandon Gooch <jamesbrandongooch@gmail.com> To: FreeBSD Current <freebsd-current@freebsd.org> Cc: bzeeb+freebsd+lor@zabbadoz.net Subject: LOR iwn0_com_lock iwn0 Message-ID: <179b97fb0905301351g26dea00av372ed3f2a816ca1a@mail.gmail.com>
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lock order reversal: 1st 0xffffff8000699018 iwn0_com_lock (iwn0_com_lock) @ /usr/src/sys/net80211/ieee80211_proto.c:1072 2nd 0xffffff80006d7080 iwn0 (network driver) @ /usr/src/sys/modules/iwn/../../dev/iwn/if_iwn.c:2845 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 _mtx_lock_flags() at _mtx_lock_flags+0x78 iwn_wme_update() at iwn_wme_update+0xa3 ieee80211_wme_updateparams_locked() at ieee80211_wme_updateparams_locked+0xef ieee80211_wme_updateparams() at ieee80211_wme_updateparams+0x52 ieee80211_wme_initparams() at ieee80211_wme_initparams+0x1d9 ieee80211_sta_join1() at ieee80211_sta_join1+0xb0 setmlme_assoc() at setmlme_assoc+0x70 ieee80211_ioctl_setmlme() at ieee80211_ioctl_setmlme+0x91 ieee80211_ioctl_set80211() at ieee80211_ioctl_set80211+0xb3a in_control() at in_control+0x273 ifioctl() at ifioctl+0x2de kern_ioctl() at kern_ioctl+0x92 ioctl() at ioctl+0xfd syscall() at syscall+0x1dd Xfast_syscall() at Xfast_syscall+0xd0 --- syscall (54, FreeBSD ELF64, ioctl), rip = 0x800c8940c, rsp = 0x7fffffffde18, rbp = 0x2a ---
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