Neil Horman
6094628bfd
rds: prevent BUG_ON triggering on congestion map updates
Recently had this bug halt reported to me:
kernel BUG at net/rds/send.c:329!
Oops: Exception in kernel mode, sig: 5 [#1]
SMP NR_CPUS=1024 NUMA pSeries
Modules linked in: rds sunrpc ipv6 dm_mirror dm_region_hash dm_log ibmveth sg
ext4 jbd2 mbcache sd_mod crc_t10dif ibmvscsic scsi_transport_srp scsi_tgt
dm_mod [last unloaded: scsi_wait_scan]
NIP: d000000003ca68f4 LR: d000000003ca67fc CTR: d000000003ca8770
REGS: c000000175cab980 TRAP: 0700 Not tainted (2.6.32-118.el6.ppc64)
MSR: 8000000000029032 <EE,ME,CE,IR,DR> CR: 44000022 XER: 00000000
TASK = c00000017586ec90[1896] 'krdsd' THREAD: c000000175ca8000 CPU: 0
GPR00: 0000000000000150 c000000175cabc00 d000000003cb7340 0000000000002030
GPR04: ffffffffffffffff 0000000000000030 0000000000000000 0000000000000030
GPR08: 0000000000000001 0000000000000001 c0000001756b1e30 0000000000010000
GPR12: d000000003caac90 c000000000fa2500 c0000001742b2858 c0000001742b2a00
GPR16: c0000001742b2a08 c0000001742b2820 0000000000000001 0000000000000001
GPR20: 0000000000000040 c0000001742b2814 c000000175cabc70 0800000000000000
GPR24: 0000000000000004 0200000000000000 0000000000000000 c0000001742b2860
GPR28: 0000000000000000 c0000001756b1c80 d000000003cb68e8 c0000001742b27b8
NIP [d000000003ca68f4] .rds_send_xmit+0x4c4/0x8a0 [rds]
LR [d000000003ca67fc] .rds_send_xmit+0x3cc/0x8a0 [rds]
Call Trace:
[c000000175cabc00] [d000000003ca67fc] .rds_send_xmit+0x3cc/0x8a0 [rds]
(unreliable)
[c000000175cabd30] [d000000003ca7e64] .rds_send_worker+0x54/0x100 [rds]
[c000000175cabdb0] [c0000000000b475c] .worker_thread+0x1dc/0x3c0
[c000000175cabed0] [c0000000000baa9c] .kthread+0xbc/0xd0
[c000000175cabf90] [c000000000032114] .kernel_thread+0x54/0x70
Instruction dump:
4bfffd50 60000000 60000000 39080001 935f004c f91f0040 41820024 813d017c
7d094a78 7d290074 7929d182 394a0020 <0b090000> 40e2ff68 4bffffa4 39200000
Kernel panic - not syncing: Fatal exception
Call Trace:
[c000000175cab560] [c000000000012e04] .show_stack+0x74/0x1c0 (unreliable)
[c000000175cab610] [c0000000005a365c] .panic+0x80/0x1b4
[c000000175cab6a0] [c00000000002fbcc] .die+0x21c/0x2a0
[c000000175cab750] [c000000000030000] ._exception+0x110/0x220
[c000000175cab910] [c000000000004b9c] program_check_common+0x11c/0x180
Signed-off-by: David S. Miller <davem@davemloft.net>
|
2011-03-08 11:22:43 -08:00 |
| .. |
|
af_rds.c
|
RDS/IB: print string constants in more places
|
2010-09-08 18:16:50 -07:00 |
|
bind.c
|
rds: Use RCU for the bind lookup searches
|
2010-09-08 18:15:08 -07:00 |
|
cong.c
|
RDS: Bypass workqueue when queueing cong updates
|
2010-09-08 18:12:16 -07:00 |
|
connection.c
|
rds: make local functions/variables static
|
2010-10-21 04:26:39 -07:00 |
|
ib.c
|
rds: make local functions/variables static
|
2010-10-21 04:26:39 -07:00 |
|
ib.h
|
rds: make local functions/variables static
|
2010-10-21 04:26:39 -07:00 |
|
ib_cm.c
|
rds: double unlock in rds_ib_cm_handle_connect()
|
2010-09-19 11:59:44 -07:00 |
|
ib_rdma.c
|
rds: make local functions/variables static
|
2010-10-21 04:26:39 -07:00 |
|
ib_recv.c
|
RDS/IB: print string constants in more places
|
2010-09-08 18:16:50 -07:00 |
|
ib_ring.c
|
|
|
|
ib_send.c
|
rds: prevent BUG_ON triggering on congestion map updates
|
2011-03-08 11:22:43 -08:00 |
|
ib_stats.c
|
RDS: Move atomic stats from general to ib-specific area
|
2010-09-08 18:12:20 -07:00 |
|
ib_sysctl.c
|
rds: make local functions/variables static
|
2010-10-21 04:26:39 -07:00 |
|
info.c
|
RDS: cleanup: remove "== NULL"s and "!= NULL"s in ptr comparisons
|
2010-09-08 18:11:32 -07:00 |
|
info.h
|
|
|
|
iw.c
|
rds: make local functions/variables static
|
2010-10-21 04:26:39 -07:00 |
|
iw.h
|
rds: make local functions/variables static
|
2010-10-21 04:26:39 -07:00 |
|
iw_cm.c
|
RDS: cleanup: remove "== NULL"s and "!= NULL"s in ptr comparisons
|
2010-09-08 18:11:32 -07:00 |
|
iw_rdma.c
|
rds: make local functions/variables static
|
2010-10-21 04:26:39 -07:00 |
|
iw_recv.c
|
RDS: remove __init and __exit annotation
|
2010-09-08 18:16:39 -07:00 |
|
iw_ring.c
|
|
|
|
iw_send.c
|
RDS: Rename data op members prefix from m_ to op_
|
2010-09-08 18:11:59 -07:00 |
|
iw_stats.c
|
|
|
|
iw_sysctl.c
|
rds: make local functions/variables static
|
2010-10-21 04:26:39 -07:00 |
|
Kconfig
|
|
|
|
loop.c
|
rds: prevent BUG_ON triggering on congestion map updates
|
2011-03-08 11:22:43 -08:00 |
|
loop.h
|
|
|
|
Makefile
|
Net: rds: Makefile: Remove deprecated items
|
2010-11-22 08:16:15 -08:00 |
|
message.c
|
rds: Fix rds message leak in rds_message_map_pages
|
2010-11-08 12:17:09 -08:00 |
|
page.c
|
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
|
2010-10-21 08:43:05 -07:00 |
|
rdma.c
|
rds: Integer overflow in RDS cmsg handling
|
2010-11-17 12:20:52 -08:00 |
|
rdma_transport.c
|
rds: make local functions/variables static
|
2010-10-21 04:26:39 -07:00 |
|
rdma_transport.h
|
rds: make local functions/variables static
|
2010-10-21 04:26:39 -07:00 |
|
rds.h
|
rds: make local functions/variables static
|
2010-10-21 04:26:39 -07:00 |
|
recv.c
|
rds: make local functions/variables static
|
2010-10-21 04:26:39 -07:00 |
|
send.c
|
RDS: Let rds_message_alloc_sgs() return NULL
|
2010-10-30 16:34:18 -07:00 |
|
stats.c
|
RDS: remove __init and __exit annotation
|
2010-09-08 18:16:39 -07:00 |
|
sysctl.c
|
RDS: remove __init and __exit annotation
|
2010-09-08 18:16:39 -07:00 |
|
tcp.c
|
rds: Remove kfreed tcp conn from list
|
2010-11-03 18:50:07 -07:00 |
|
tcp.h
|
rds: make local functions/variables static
|
2010-10-21 04:26:39 -07:00 |
|
tcp_connect.c
|
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
|
2010-09-27 01:03:03 -07:00 |
|
tcp_listen.c
|
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
|
2010-09-27 01:03:03 -07:00 |
|
tcp_recv.c
|
rds: make local functions/variables static
|
2010-10-21 04:26:39 -07:00 |
|
tcp_send.c
|
rds: make local functions/variables static
|
2010-10-21 04:26:39 -07:00 |
|
tcp_stats.c
|
|
|
|
threads.c
|
RDS: remove __init and __exit annotation
|
2010-09-08 18:16:39 -07:00 |
|
transport.c
|
RDS: have sockets get transport module references
|
2010-09-08 18:16:47 -07:00 |
|
xlist.h
|
RDS: Remove unused XLIST_PTR_TAIL and xlist_protect()
|
2010-09-08 18:16:06 -07:00 |