Vlad Yasevich c078669340 sctp: Fix oops when sending queued ASCONF chunks ... When we finish processing ASCONF_ACK chunk, we try to send the next queued ASCONF. This action runs the sctp state machine recursively and it's not prepared to do so. kernel BUG at kernel/timer.c:790! invalid opcode: 0000 [#1] SMP last sysfs file: /sys/module/ipv6/initstate Modules linked in: sha256_generic sctp libcrc32c ipv6 dm_multipath uinput 8139too i2c_piix4 8139cp mii i2c_core pcspkr virtio_net joydev floppy virtio_blk virtio_pci [last unloaded: scsi_wait_scan] Pid: 0, comm: swapper Not tainted 2.6.34-rc4 #15 /Bochs EIP: 0060:[<c044a2ef>] EFLAGS: 00010286 CPU: 0 EIP is at add_timer+0xd/0x1b EAX: cecbab14 EBX: 000000f0 ECX: c0957b1c EDX: 03595cf4 ESI: cecba800 EDI: cf276f00 EBP: c0957aa0 ESP: c0957aa0 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 Process swapper (pid: 0, ti=c0956000 task=c0988ba0 task.ti=c0956000) Stack: c0957ae0 d1851214 c0ab62e4 c0ab5f26 0500ffff 00000004 00000005 00000004 <0> 00000000 d18694fd 00000004 1666b892 cecba800 cecba800 c0957b14 00000004 <0> c0957b94 d1851b11 ceda8b00 cecba800 cf276f00 00000001 c0957b14 000000d0 Call Trace: [<d1851214>] ? sctp_side_effects+0x607/0xdfc [sctp] [<d1851b11>] ? sctp_do_sm+0x108/0x159 [sctp] [<d1863386>] ? sctp_pname+0x0/0x1d [sctp] [<d1861a56>] ? sctp_primitive_ASCONF+0x36/0x3b [sctp] [<d185657c>] ? sctp_process_asconf_ack+0x2a4/0x2d3 [sctp] [<d184e35c>] ? sctp_sf_do_asconf_ack+0x1dd/0x2b4 [sctp] [<d1851ac1>] ? sctp_do_sm+0xb8/0x159 [sctp] [<d1863334>] ? sctp_cname+0x0/0x52 [sctp] [<d1854377>] ? sctp_assoc_bh_rcv+0xac/0xe1 [sctp] [<d1858f0f>] ? sctp_inq_push+0x2d/0x30 [sctp] [<d186329d>] ? sctp_rcv+0x797/0x82e [sctp] Tested-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Yuansong Qiao <ysqiao@research.ait.ie> Signed-off-by: Shuaijun Zhang <szhang@research.ait.ie> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2010-04-28 12:16:34 -07:00
..
associola.c	sctp: fix potential reference of a freed pointer	2010-04-28 12:16:32 -07:00
auth.c
bind_addr.c
chunk.c
command.c
debug.c
endpointola.c	sctp: avoid irq lock inversion while call sk->sk_data_ready()	2010-04-28 12:16:31 -07:00
input.c
inqueue.c
ipv6.c
Kconfig
Makefile
objcnt.c
output.c
outqueue.c
primitive.c
proc.c
protocol.c
sm_make_chunk.c	sctp: Fix oops when sending queued ASCONF chunks	2010-04-28 12:16:34 -07:00
sm_sideeffect.c	sctp: Fix oops when sending queued ASCONF chunks	2010-04-28 12:16:34 -07:00
sm_statefuns.c	sctp: Fix oops when sending queued ASCONF chunks	2010-04-28 12:16:34 -07:00
sm_statetable.c
socket.c	sctp: per_cpu variables should be in bh_disabled section	2010-04-28 12:16:33 -07:00
ssnmap.c
sysctl.c
transport.c
tsnmap.c
ulpevent.c
ulpqueue.c