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linux-sg2042/net/sctp
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Rafael Laufer 418372b0ab sctp: fix missing destroy of percpu counter variable in sctp_proc_exit() 
Commit 1748376b66,
	net: Use a percpu_counter for sockets_allocated

added percpu_counter function calls to sctp_proc_init code path, but
forgot to add them to sctp_proc_exit().  This resulted in a following
Ooops when performing this test
	# modprobe sctp
	# rmmod -f sctp
	# modprobe sctp

[  573.862512] BUG: unable to handle kernel paging request at f8214a24
[  573.862518] IP: [<c0308b8f>] __percpu_counter_init+0x3f/0x70
[  573.862530] *pde = 37010067 *pte = 00000000
[  573.862534] Oops: 0002 [#1] SMP
[  573.862537] last sysfs file: /sys/module/libcrc32c/initstate
[  573.862540] Modules linked in: sctp(+) crc32c libcrc32c binfmt_misc bridge
stp bnep lp snd_hda_codec_analog snd_hda_intel snd_hda_codec snd_hwdep
snd_pcm_oss snd_mixer_oss arc4 joydev snd_pcm ecb pcmcia snd_seq_dummy
snd_seq_oss iwlagn iwlcore snd_seq_midi snd_rawmidi snd_seq_midi_event
yenta_socket rsrc_nonstatic thinkpad_acpi snd_seq snd_timer snd_seq_device
mac80211 psmouse sdhci_pci sdhci nvidia(P) ppdev video snd soundcore serio_raw
pcspkr iTCO_wdt iTCO_vendor_support led_class ricoh_mmc pcmcia_core intel_agp
nvram agpgart usbhid parport_pc parport output snd_page_alloc cfg80211 btusb
ohci1394 ieee1394 e1000e [last unloaded: sctp]
[  573.862589]
[  573.862593] Pid: 5373, comm: modprobe Tainted: P  R        (2.6.31-rc3 #6)
7663B15
[  573.862596] EIP: 0060:[<c0308b8f>] EFLAGS: 00010286 CPU: 1
[  573.862599] EIP is at __percpu_counter_init+0x3f/0x70
[  573.862602] EAX: f8214a20 EBX: f80faa14 ECX: c48c0000 EDX: f80faa20
[  573.862604] ESI: f80a7000 EDI: 00000000 EBP: f69d5ef0 ESP: f69d5eec
[  573.862606]  DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
[  573.862610] Process modprobe (pid: 5373, ti=f69d4000 task=c2130c70
task.ti=f69d4000)
[  573.862612] Stack:
[  573.862613]  00000000 f69d5f18 f80a70a8 f80fa9fc 00000000 fffffffc f69d5f30
c018e2d4
[  573.862619] <0> 00000000 f80a7000 00000000 f69d5f88 c010112b 00000000
c07029c0 fffffffb
[  573.862626] <0> 00000000 f69d5f38 c018f83f f69d5f54 c0557cad f80fa860
00000001 c07010c0
[  573.862634] Call Trace:
[  573.862644]  [<f80a70a8>] ? sctp_init+0xa8/0x7d4 [sctp]
[  573.862650]  [<c018e2d4>] ? marker_update_probe_range+0x184/0x260
[  573.862659]  [<f80a7000>] ? sctp_init+0x0/0x7d4 [sctp]
[  573.862662]  [<c010112b>] ? do_one_initcall+0x2b/0x160
[  573.862666]  [<c018f83f>] ? tracepoint_module_notify+0x2f/0x40
[  573.862671]  [<c0557cad>] ? notifier_call_chain+0x2d/0x70
[  573.862678]  [<c01588fd>] ? __blocking_notifier_call_chain+0x4d/0x60
[  573.862682]  [<c016b2f1>] ? sys_init_module+0xb1/0x1f0
[  573.862686]  [<c0102ffc>] ? sysenter_do_call+0x12/0x28
[  573.862688] Code: 89 48 08 b8 04 00 00 00 e8 df aa ec ff ba f4 ff ff ff 85
c0 89 43 14 74 31 b8 b0 18 71 c0 e8 19 b9 24 00 a1 c4 18 71 c0 8d 53 0c <89> 50
04 89 43 0c b8 b0 18 71 c0 c7 43 10 c4 18 71 c0 89 15 c4
[  573.862725] EIP: [<c0308b8f>] __percpu_counter_init+0x3f/0x70 SS:ESP
0068:f69d5eec
[  573.862730] CR2: 00000000f8214a24
[  573.862734] ---[ end trace 39c4e0b55e7cf54d ]---

Signed-off-by: Rafael Laufer <rlaufer@cisco.com>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2009-08-09 21:45:43 -07:00
..
Kconfig sctp: Don't abort initialization when CONFIG_PROC_FS=n 2008-07-18 23:03:44 -07:00
Makefile sctp: Don't abort initialization when CONFIG_PROC_FS=n 2008-07-18 23:03:44 -07:00
associola.c sctp: support non-blocking version of the new sctp_connectx() API 2009-06-03 09:14:47 -04:00
auth.c fix similar typos to successfull 2009-01-08 08:31:15 -08:00
bind_addr.c sctp: try harder to figure out address family when checking wildcards 2008-10-01 11:33:06 -04:00
chunk.c SCTP: fix wrong debug counting of datamsg 2008-04-10 01:57:24 -07:00
command.c [SCTP]: Remove sctp_add_cmd_sf wrapper bloat 2008-03-27 17:54:29 -07:00
debug.c sctp: Add some missing types for debug message 2009-03-02 22:49:16 -08:00
endpointola.c net: fix sctp breakage 2009-03-18 19:12:42 -07:00
input.c sctp: Use frag list abstraction interfaces. 2009-06-09 00:24:07 -07:00
inqueue.c [SCTP]: Stop claiming that this is a "reference implementation" 2008-02-05 10:59:07 -05:00
ipv6.c ipv6: Use correct data types for ICMPv6 type and code 2009-06-23 04:31:07 -07:00
objcnt.c [NET]: Fix heavy stack usage in seq_file output routines. 2008-04-24 01:02:16 -07:00
output.c sctp: xmit sctp packet always return no route error 2009-06-29 19:41:53 -07:00
outqueue.c sctp: fix to send FORWARD-TSN chunk only if peer has such capable 2009-03-13 11:37:58 -07:00
primitive.c [SCTP]: Stop claiming that this is a "reference implementation" 2008-02-05 10:59:07 -05:00
proc.c sctp: remove sctp_assoc_proc_exit() 2008-07-22 14:21:30 -07:00
protocol.c sctp: fix missing destroy of percpu counter variable in sctp_proc_exit() 2009-08-09 21:45:43 -07:00
sm_make_chunk.c sctp: fix the error code when ASCONF is received with invalid address 2009-06-03 09:14:45 -04:00
sm_sideeffect.c sctp: fix to choose alternate destination when retransmit ASCONF chunk 2009-06-03 09:14:46 -04:00
sm_statefuns.c sctp: fix panic when T4-rto timer expire on removed transport 2009-06-03 09:14:46 -04:00
sm_statetable.c sctp: fix a typo in net/sctp/sm_statetable.c 2009-06-03 09:14:45 -04:00
socket.c sctp: fix warning at inet_sock_destruct() while release sctp socket 2009-07-06 12:47:08 -07:00
ssnmap.c [SCTP]: Stop claiming that this is a "reference implementation" 2008-02-05 10:59:07 -05:00
sysctl.c sctp: fix sack_timeout sysctl min and max types 2009-06-03 09:14:46 -04:00
transport.c sctp: use time_before or time_after for comparing jiffies 2009-03-02 22:49:18 -08:00
tsnmap.c trivial: fix then -> than typos in comments and documentation 2009-01-06 11:28:06 +01:00
ulpevent.c sctp: Use frag list abstraction interfaces. 2009-06-09 00:24:07 -07:00
ulpqueue.c net: Remove __skb_insert() calls outside of skbuff internals. 2008-09-21 21:28:51 -07:00