ng_ksocket on CURRENT
Julian Elischer
julian at elischer.org
Mon Jul 5 07:41:51 PDT 2004
It looks like ksocket needs to
ensure that it has giant before calling the network stack.
Robert?
On Mon, 5 Jul 2004, Gleb Smirnoff wrote:
> Actually I can easily reproduce it without WITNESS.
>
> mkpeer xxx: ksocket qqq inet/dgram/udp
> msg xxx:qqq connect inet/127.0.0.1:4444
>
> Then write something to this node.
>
>
> On Sun, Jul 04, 2004 at 10:30:18PM +0400, Gleb Smirnoff wrote:
> T> I can easily reproduce this panic using today's CURRENT
> T> and ng_ksocket and WITNESS turned on:
> T>
> T> mutex Giant not owned at /usr/src/sys/netinet/udp_usrreq.c:734
> T>
> T> #0 Debugger (msg=0x12 <Address 0x12 out of bounds>) at atomic.h:263
> T> #1 0xc0563565 in panic (fmt=0xc0701209 "mutex %s not owned at %s:%d")
> T> at /usr/src/sys/kern/kern_shutdown.c:543
> T> #2 0xc0559b4c in _mtx_assert (m=0xc0779320, what=-1056882688,
> T> file=0xc070d665 "/usr/src/sys/netinet/udp_usrreq.c", line=734)
> T> at /usr/src/sys/kern/kern_mutex.c:747
> T> #3 0xc060e47f in udp_output (inp=0xc17af21c, m=0xc172a500, addr=0x0, control=0x0, td=0xc15012c0)
> T> at /usr/src/sys/netinet/udp_usrreq.c:734
> T> #4 0xc060f067 in udp_send (so=0x12, flags=0, m=0xc172a500, addr=0x12, control=0x12, td=0x12)
> T> at /usr/src/sys/netinet/udp_usrreq.c:1079
> T> #5 0xc05a31ed in sosend (so=0xc17ae4f0, addr=0x0, uio=0x0, top=0xc172a500, control=0x0, flags=0,
> T> td=0xc15012c0) at /usr/src/sys/kern/uipc_socket.c:788
> T> #6 0xc05eb595 in ng_ksocket_rcvdata (hook=0xc19e9380, item=0xc17eb7c0)
> T> at /usr/src/sys/netgraph/ng_ksocket.c:917
> T> #7 0xc05e4fe9 in ng_apply_item (node=0xc19d2800, item=0xc17eb7c0)
> T> at /usr/src/sys/netgraph/ng_base.c:2375
> T> #8 0xc05e4b95 in ng_snd_item (item=0xc17eb7c0, queue=0) at /usr/src/sys/netgraph/ng_base.c:2264
> T> #9 0xc1a01b09 in ?? ()
> T> #10 0xc17eb7c0 in ?? ()
> T>
> T> --
> T> Totus tuus, Glebius.
> T> GLEBIUS-RIPN GLEB-RIPE
> T> _______________________________________________
> T> freebsd-current at freebsd.org mailing list
> T> http://lists.freebsd.org/mailman/listinfo/freebsd-current
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>
> --
> Totus tuus, Glebius.
> GLEBIUS-RIPN GLEB-RIPE
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