OGAWA Hirofumi
a271c5a0de
NFS: Ensure that rpc_release_resources_task() can be called twice.
BUG: atomic_dec_and_test(): -1: atomic counter underflow at:
Pid: 2827, comm: mount.nfs Not tainted 2.6.38 #1
Call Trace:
[<ffffffffa02223a0>] ? put_rpccred+0x44/0x14e [sunrpc]
[<ffffffffa021bbe9>] ? rpc_ping+0x4e/0x58 [sunrpc]
[<ffffffffa021c4a5>] ? rpc_create+0x481/0x4fc [sunrpc]
[<ffffffffa022298a>] ? rpcauth_lookup_credcache+0xab/0x22d [sunrpc]
[<ffffffffa028be8c>] ? nfs_create_rpc_client+0xa6/0xeb [nfs]
[<ffffffffa028c660>] ? nfs4_set_client+0xc2/0x1f9 [nfs]
[<ffffffffa028cd3c>] ? nfs4_create_server+0xf2/0x2a6 [nfs]
[<ffffffffa0295d07>] ? nfs4_remote_mount+0x4e/0x14a [nfs]
[<ffffffff810dd570>] ? vfs_kern_mount+0x6e/0x133
[<ffffffffa029605a>] ? nfs_do_root_mount+0x76/0x95 [nfs]
[<ffffffffa029643d>] ? nfs4_try_mount+0x56/0xaf [nfs]
[<ffffffffa0297434>] ? nfs_get_sb+0x435/0x73c [nfs]
[<ffffffff810dd59b>] ? vfs_kern_mount+0x99/0x133
[<ffffffff810dd693>] ? do_kern_mount+0x48/0xd8
[<ffffffff810f5b75>] ? do_mount+0x6da/0x741
[<ffffffff810f5c5f>] ? sys_mount+0x83/0xc0
[<ffffffff8100293b>] ? system_call_fastpath+0x16/0x1b
Well, so, I think this is real bug of nfs codes somewhere. With some
review, the code
rpc_call_sync()
rpc_run_task
rpc_execute()
__rpc_execute()
rpc_release_task()
rpc_release_resources_task()
put_rpccred() <= release cred
rpc_put_task
rpc_do_put_task()
rpc_release_resources_task()
put_rpccred() <= release cred again
seems to be release cred unintendedly.
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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2011-03-27 17:55:36 +02:00 |
| .. |
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auth_gss
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NFS: Determine initial mount security
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2011-03-24 13:52:42 -04:00 |
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xprtrdma
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SUNRPC: Remove resource leak in svc_rdma_send_error()
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2011-03-17 14:38:03 -04:00 |
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addr.c
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include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
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2010-03-30 22:02:32 +09:00 |
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auth.c
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SUNRPC: New xdr_streams XDR decoder API
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2010-12-16 12:37:25 -05:00 |
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auth_generic.c
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sunrpc: fix up rpcauth_remove_module section mismatch
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2010-09-29 12:27:37 -04:00 |
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auth_null.c
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SUNRPC: Move the bound cred to struct rpc_rqst
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2010-08-04 08:54:09 -04:00 |
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auth_unix.c
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SUNRPC: Move the bound cred to struct rpc_rqst
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2010-08-04 08:54:09 -04:00 |
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backchannel_rqst.c
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include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
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2010-03-30 22:02:32 +09:00 |
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bc_svc.c
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SUNRPC fix bc_send print
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2011-01-06 14:46:23 -05:00 |
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cache.c
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svcrpc: ensure cache_check caller sees updated entry
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2011-01-04 16:49:25 -05:00 |
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clnt.c
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RPC: killing RPC tasks races fixed
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2011-03-17 12:39:00 -04:00 |
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Kconfig
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nfsd4: remove spkm3
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2010-10-01 18:09:55 -04:00 |
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Makefile
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SUNRPC: Provide functions for managing universal addresses
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2009-08-09 15:09:34 -04:00 |
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netns.h
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sunrpc: Make the ip_map_cache be per-net
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2010-09-27 10:16:12 -04:00 |
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rpc_pipe.c
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Merge branch 'nfs-for-2.6.38' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6
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2011-01-11 15:11:56 -08:00 |
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rpcb_clnt.c
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SUNRPC: New xdr_streams XDR decoder API
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2010-12-16 12:37:25 -05:00 |
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sched.c
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NFS: Ensure that rpc_release_resources_task() can be called twice.
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2011-03-27 17:55:36 +02:00 |
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socklib.c
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include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
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2010-03-30 22:02:32 +09:00 |
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stats.c
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SUNRPC: Simplify rpc_alloc_iostats by removing pointless local variable
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2010-11-16 11:58:51 -05:00 |
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sunrpc.h
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nfsd41: sunrpc: Added rpc server-side backchannel handling
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2009-09-11 15:04:16 -04:00 |
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sunrpc_syms.c
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sunrpc: Make the ip_map_cache be per-net
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2010-09-27 10:16:12 -04:00 |
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svc.c
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Merge branch 'for-2.6.38' of git://linux-nfs.org/~bfields/linux
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2011-01-14 13:17:26 -08:00 |
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svc_xprt.c
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rpc: keep backchannel xprt as long as server connection
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2011-01-11 15:04:10 -05:00 |
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svcauth.c
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net: sunrpc: kill unused macros
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2010-12-17 15:48:21 -05:00 |
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svcauth_unix.c
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svcrpc: fix bad argument in unix_domain_find
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2011-03-09 22:40:30 -05:00 |
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svcsock.c
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net: add __rcu annotations to sk_wq and wq
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2011-02-22 10:19:31 -08:00 |
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sysctl.c
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sysctl: Drop & in front of every proc_handler.
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2009-11-18 08:37:40 -08:00 |
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timer.c
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SUNRPC: Add documenting comments in net/sunrpc/timer.c
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2009-08-09 15:09:47 -04:00 |
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xdr.c
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NFS: Don't use vm_map_ram() in readdir
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2011-01-10 14:45:01 -05:00 |
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xprt.c
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xprt: remove redundant check
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2011-03-17 12:39:00 -04:00 |
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xprtsock.c
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SUNRPC: Never reuse the socket port after an xs_close()
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2011-03-22 18:42:33 -04:00 |