Date: Tue, 20 Jul 2010 07:37:27 GMT From: Yuriy Kohut <ykohut@onapp.com> To: freebsd-gnats-submit@FreeBSD.org Subject: i386/148780: panic: mtx_lock() of spin mutex (null) @ /usr/src/sys/net/netisr.c:830 Message-ID: <201007200737.o6K7bRb1067372@www.freebsd.org> Resent-Message-ID: <201007200740.o6K7e1wR041700@freefall.freebsd.org>
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>Number: 148780 >Category: i386 >Synopsis: panic: mtx_lock() of spin mutex (null) @ /usr/src/sys/net/netisr.c:830 >Confidential: no >Severity: critical >Priority: low >Responsible: freebsd-i386 >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Tue Jul 20 07:40:00 UTC 2010 >Closed-Date: >Last-Modified: >Originator: Yuriy Kohut >Release: FreeBSD 8.0-RELEASE-p4 (XEN) >Organization: UK2, OnApp >Environment: FreeBSD freebsd.tst 8.0-RELEASE-p4 FreeBSD 8.0-RELEASE-p4 #0: Tue Jul 20 08:46:15 EEST 2010 root@freebsd.vm:/mnt/usr/src/sys/XEN i386 >Description: FreeBSD 8.0 i386 is running as Xen 3.0 guest (DomU). Kernel panics while building on ports. The command was: cd /usr/ports/devel/m4 && make config; The panic details: panic: mtx_lock() of spin mutex (null) @ /usr/src/sys/net/netisr.c:830 cpuid = 0 KDB: enter: panic [thread pid 36643 tid 100050 ] Stopped at kdb_enter+0x3a: movl $0,kdb_why db> where Tracing pid 36643 tid 100050 td 0xc41246c0 kdb_enter(c035909f,c035909f,c0357ac9,c3db39d8,0,...) at kdb_enter+0x3a panic(c0357ac9,0,c03678d3,33e,c00d6a98,...) at panic+0x136 _mtx_lock_flags(c07b2808,0,c03678d3,33e,c43db600,...) at _mtx_lock_flags+0x98 netisr_clearqdrops(c3db3a28,c3db3a3c,c00df55a,0) at netisr_clearqdrops+0x66e netisr_queue_src(1,0,c43db600,c3db3a6c,c01817ce,...) at netisr_queue_src+0xa7 netisr_queue(1,c43db600,df,0,c3db3a80,...) at netisr_queue+0x20 if_simloop(c3ece400,c43db600,2,0,c019df3f,...) at if_simloop+0xfe looutput(c3ece400,c43db600,c3db3b00,c3db3af8,c031b624,...) at looutput+0x141 ip_output(c43db600,0,0,0,0,...) at ip_output+0x9cc tcp_output(c429f9e0,c40f12b0,1b9,c429d7a8,c42b4338,...) at tcp_output+0x1540 tcp_ctloutput(c42b4338,c40f12b0,c41246c0,25,c3db3c70,...) at tcp_ctloutput+0x933 soconnect(c42b4338,c40f12b0,c41246c0,bf7fae30,c40f12b0,...) at soconnect+0x52 kern_connect(c41246c0,6,c40f12b0,c40f12b0,ffffffff,...) at kern_connect+0xa6 connect(c41246c0,c3db3d08,c,c3db0000,c0397338,...) at connect+0x46 syscall(c3db3d48) at syscall+0x2a3 Xint0x80_syscall() at Xint0x80_syscall+0x22 --- syscall (98, FreeBSD ELF32, connect), eip = 0x283b9e5b, esp = 0xbf7faccc, ebp = 0xbf7faef8 --- >How-To-Repeat: >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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