Date: Sat, 21 Jul 2012 16:18:46 -0400 From: Kim Culhan <w8hdkim@gmail.com> To: Adrian Chadd <adrian.chadd@gmail.com> Cc: freebsd-wireless@freebsd.org Subject: ath lor Message-ID: <CAKZxVQUcuk=Bw0rBkOLmy1ie%2BZYqn5uNkEndW_sEOH5u-Ef04w@mail.gmail.com>
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Observed some instances of this lor: Jul 21 16:09:49 foo kernel: lock order reversal: Jul 21 16:09:49 foo kernel: 1st 0xffffff8001ad3948 ath0_scan_lock (ath0_scan_lock) @ /usr/src/sys/net80211/ieee8 0211_node.c:2166 Jul 21 16:09:49 foo kernel: 2nd 0xffffff8001ad2018 ath0_com_lock (ath0_com_lock) @ /usr/src/sys/net80211/ieee802 11_node.c:2518 Jul 21 16:09:49 foo kernel: KDB: stack backtrace: Jul 21 16:09:49 foo kernel: db_trace_self_wrapper() at db_trace_self_wrapper+0x37 Jul 21 16:09:49 foo kernel: kdb_backtrace() at kdb_backtrace+0x39 Jul 21 16:09:49 foo kernel: witness_checkorder() at witness_checkorder+0xca1 Jul 21 16:09:49 foo kernel: _mtx_lock_flags() at _mtx_lock_flags+0x79 Jul 21 16:09:49 foo kernel: ieee80211_node_leave() at ieee80211_node_leave+0x97 Jul 21 16:09:49 foo kernel: ieee80211_iterate_nodes() at ieee80211_iterate_nodes+0x89 Jul 21 16:09:49 foo kernel: setmlme_common() at setmlme_common+0x408 Jul 21 16:09:49 foo kernel: ieee80211_ioctl_setmlme() at ieee80211_ioctl_setmlme+0x87 Jul 21 16:09:49 foo kernel: ieee80211_ioctl_set80211() at ieee80211_ioctl_set80211+0x5b0 Jul 21 16:09:49 foo kernel: in_control() at in_control+0x234 Jul 21 16:09:49 foo kernel: ifioctl() at ifioctl+0x148c Jul 21 16:09:49 foo kernel: kern_ioctl() at kern_ioctl+0x1dc Jul 21 16:09:49 foo kernel: sys_ioctl() at sys_ioctl+0x12e Jul 21 16:09:50 foo kernel: amd64_syscall() at amd64_syscall+0x25a Jul 21 16:09:50 foo kernel: Xfast_syscall() at Xfast_syscall+0xfb Jul 21 16:09:50 foo kernel: --- syscall (54, FreeBSD ELF64, sys_ioctl), rip = 0x801210dfc, rsp = 0x7fffffffda78, rbp = 0x2a --- Jul 21 16:09:50 foo kernel: ath0: stuck beacon; resetting (bmiss count 4) thanks -kim
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