Date: Mon, 17 Jan 2011 16:27:27 GMT From: Monthadar <monthadar@gmail.com> To: freebsd-gnats-submit@FreeBSD.org Subject: misc/154091: Panic: netgraph, unaligned mbuf? Message-ID: <201101171627.p0HGRRjk036805@red.freebsd.org> Resent-Message-ID: <201101171630.p0HGUBVW094185@freefall.freebsd.org>
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>Number: 154091 >Category: misc >Synopsis: Panic: netgraph, unaligned mbuf? >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Mon Jan 17 16:30:11 UTC 2011 >Closed-Date: >Last-Modified: >Originator: Monthadar >Release: Current 201010 >Organization: >Environment: FreeBSD 9.0-CURRENT-201010 FreeBSD 9.0-CURRENT-201010 #17: Wed Dec 29 05:33:36 UTC 2010 root@FreeBSD.NFS:/usr/just_kernel_nfs/obj/mips.mips/usr/src/sys/RSPRO_NFS mips >Description: when I try to connect wlan and weired to a Netgraph hub I get a panic Trap cause = 4 (address error (load or I-fetch) - kernel mode) [ thread pid 11 tid 100037 ] Stopped at ip_input+0xd8: lw v0,0(s0) Register output: db> show registers at 0 v0 0 v1 0x2e0d _DYNAMIC_LINKING+0x2e0c a0 0xc0960200 a1 0x2e0c _DYNAMIC_LINKING+0x2e0b a2 0 a3 0x806b4880 t0 0xc0960200 t1 0x805ef060 t2 0xec01 _DYNAMIC_LINKING+0xec00 t3 0xfffffffe t4 0x504dc871 t5 0x504dc870 t6 0x171d000 t7 0x401310 s0 0xc0960246 s1 0xc0a82000 s2 0xc0aa3980 s3 0 s4 0 s5 0xc0d0ae40 s6 0xc0ccf880 s7 0xc0aa3980 t8 0x23 _DYNAMIC_LINKING+0x22 t9 0x5025a4f0 k0 0x14e24c k1 0xd00bb489 gp 0 sp 0xc76b1b48 s8 0xc7bd5ec4 ng_package_data ra 0x80277b1c netisr_dispatch_src+0x124 sr 0xec03 _DYNAMIC_LINKING+0xec02 lo 0x39 _DYNAMIC_LINKING+0x38 hi 0 bad 0xc0960246 cs 0x10 _DYNAMIC_LINKING+0xf pc 0x802d685c ip_input+0xd8 ip_input+0xd8: lw v0,0(s0) db> >How-To-Repeat: After creating wlan0 with wlanmode mesh I run the following ngctl commands: mkpeer wlan0: hub lower hook0 name wlan0:lower hub connect hub: wlan0: hook1 upper connect hub: arge0: hook2 lower after quiting a panic is generated. >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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