Date: Thu, 27 Nov 2003 19:16:05 -0500 (EST) From: Mikhail Teterin <mi@aldan.algebra.com> To: current@FreeBSD.org Subject: lock order reversal is 5.2-BETA Nov 26 Message-ID: <200311280016.hAS0G5m2073958@aldan.algebra.com>
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It did not crash or anything, but the following is printed on console now (addresses ommitted): lock order reversal 1st ... UMA lock (UMA lock) @ /usr/src/sys/vm/uma_core.c:1201 2nd ... system map (system map) @ /usr/src/sys/vm/vm_map.c:2210 Stack backtrace: backtrace(....) at backtrace+0x17 witness_lock(....) at wintess_lock+0x672 _mtx_lock_flags(....) at _mtx_lock_flags+0xba _vm_map_lock(....) at _vm_map_lock+0x36 vm_map_remove(....) at vm_map_remove+0x30 kmem_free(....) at kmem_free+0x32 page_free(....) at page_free+0x3b zone_drain(....) at zone_drain+0x2cf zone_foreach(....) at zone_foreach+0x45 uma_reclaim(....) at uma_reclaim+0x17 vm_pageout_scan(....) at vm_pageout_scan+0x148 vm_pageout(....) at vm_pageout+0x31b fork_exit(....) at fork_exit+0xb4 fork_trampoline(....) at fork_trampoline+0x8 --- trap 0x1, eip = 0, esp = ....., ebp = 0 --- Hope, this is usefull. A new kernel -- from today's sources -- is being compiled now. -mi
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