FEX-Emu/linux
1
0
Fork 0
mirror of https://github.com/FEX-Emu/linux.git synced 2024-12-24 10:28:57 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity
5c6e5b60aa
linux/fs/nfs
History
Trond Myklebust 5c6e5b60aa NFS: Fix an Oops in the pNFS files and flexfiles connection setup to the DS 
Chris Worley reports:
 RIP: 0010:[<ffffffffa0245f80>]  [<ffffffffa0245f80>] rpc_new_client+0x2a0/0x2e0 [sunrpc]
 RSP: 0018:ffff880158f6f548  EFLAGS: 00010246
 RAX: 0000000000000000 RBX: ffff880234f8bc00 RCX: 000000000000ea60
 RDX: 0000000000074cc0 RSI: 000000000000ea60 RDI: ffff880234f8bcf0
 RBP: ffff880158f6f588 R08: 000000000001ac80 R09: ffff880237003300
 R10: ffff880201171000 R11: ffffea0000d75200 R12: ffffffffa03afc60
 R13: ffff880230c18800 R14: 0000000000000000 R15: ffff880158f6f680
 FS:  00007f0e32673740(0000) GS:ffff88023fc40000(0000) knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
 CR2: 0000000000000008 CR3: 0000000234886000 CR4: 00000000001406e0
 Stack:
  ffffffffa047a680 0000000000000000 ffff880158f6f598 ffff880158f6f680
  ffff880158f6f680 ffff880234d11d00 ffff88023357f800 ffff880158f6f7d0
  ffff880158f6f5b8 ffffffffa024660a ffff880158f6f5b8 ffffffffa02492ec
 Call Trace:
  [<ffffffffa024660a>] rpc_create_xprt+0x1a/0xb0 [sunrpc]
  [<ffffffffa02492ec>] ? xprt_create_transport+0x13c/0x240 [sunrpc]
  [<ffffffffa0246766>] rpc_create+0xc6/0x1a0 [sunrpc]
  [<ffffffffa038e695>] nfs_create_rpc_client+0xf5/0x140 [nfs]
  [<ffffffffa038f31a>] nfs_init_client+0x3a/0xd0 [nfs]
  [<ffffffffa038f22f>] nfs_get_client+0x25f/0x310 [nfs]
  [<ffffffffa025cef8>] ? rpc_ntop+0xe8/0x100 [sunrpc]
  [<ffffffffa047512c>] nfs3_set_ds_client+0xcc/0x100 [nfsv3]
  [<ffffffffa041fa10>] nfs4_pnfs_ds_connect+0x120/0x400 [nfsv4]
  [<ffffffffa03d41c7>] nfs4_ff_layout_prepare_ds+0xe7/0x330 [nfs_layout_flexfiles]
  [<ffffffffa03d1b1b>] ff_layout_pg_init_write+0xcb/0x280 [nfs_layout_flexfiles]
  [<ffffffffa03a14dc>] __nfs_pageio_add_request+0x12c/0x490 [nfs]
  [<ffffffffa03a1fa2>] nfs_pageio_add_request+0xc2/0x2a0 [nfs]
  [<ffffffffa03a0365>] ? nfs_pageio_init+0x75/0x120 [nfs]
  [<ffffffffa03a5b50>] nfs_do_writepage+0x120/0x270 [nfs]
  [<ffffffffa03a5d31>] nfs_writepage_locked+0x61/0xc0 [nfs]
  [<ffffffff813d4115>] ? __percpu_counter_add+0x55/0x70
  [<ffffffffa03a6a9f>] nfs_wb_single_page+0xef/0x1c0 [nfs]
  [<ffffffff811ca4a3>] ? __dec_zone_page_state+0x33/0x40
  [<ffffffffa0395b21>] nfs_launder_page+0x41/0x90 [nfs]
  [<ffffffff811baba0>] invalidate_inode_pages2_range+0x340/0x3a0
  [<ffffffff811bac17>] invalidate_inode_pages2+0x17/0x20
  [<ffffffffa039960e>] nfs_release+0x9e/0xb0 [nfs]
  [<ffffffffa0399570>] ? nfs_open+0x60/0x60 [nfs]
  [<ffffffffa0394dad>] nfs_file_release+0x3d/0x60 [nfs]
  [<ffffffff81226e6c>] __fput+0xdc/0x1e0
  [<ffffffff81226fbe>] ____fput+0xe/0x10
  [<ffffffff810bf2e4>] task_work_run+0xc4/0xe0
  [<ffffffff810a4188>] do_exit+0x2e8/0xb30
  [<ffffffff8102471c>] ? do_audit_syscall_entry+0x6c/0x70
  [<ffffffff811464e6>] ? __audit_syscall_exit+0x1e6/0x280
  [<ffffffff810a4a5f>] do_group_exit+0x3f/0xa0
  [<ffffffff810a4ad4>] SyS_exit_group+0x14/0x20
  [<ffffffff8179b76e>] system_call_fastpath+0x12/0x71

Which seems to be due to a call to utsname() when in a task exit context
in order to determine the hostname to set in rpc_new_client().

In reality, what we want here is not the hostname of the current task, but
the hostname that was used to set up the metadata server.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2016-06-30 15:29:56 -04:00
..
blocklayout mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros 2016-04-04 10:41:08 -07:00
filelayout pnfs: pnfs_update_layout needs to consider if strict iomode checking is on 2016-05-26 08:40:56 -04:00
flexfilelayout pnfs: pnfs_update_layout needs to consider if strict iomode checking is on 2016-05-26 08:40:56 -04:00
objlayout mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros 2016-04-04 10:41:08 -07:00
cache_lib.c
cache_lib.h
callback_proc.c pnfs: only tear down lsegs that precede seqid in LAYOUTRETURN args 2016-05-17 15:48:10 -04:00
callback_xdr.c NFSv4: Label stateids with the type 2016-05-17 15:48:06 -04:00
callback.c
callback.h NFSv4.x: Allow multiple callbacks in flight 2016-01-25 09:36:21 -05:00
client.c NFS: Fix an Oops in the pNFS files and flexfiles connection setup to the DS 2016-06-30 15:29:56 -04:00
delegation.c NFSv4: Use the right stateid for delegations in setattr, read and write 2016-05-17 15:48:07 -04:00
delegation.h NFSv4: Use the right stateid for delegations in setattr, read and write 2016-05-17 15:48:07 -04:00
dir.c make nfs_atomic_open() call d_drop() on all ->open_context() errors. 2016-06-27 08:59:08 -04:00
direct.c NFS: Fix up O_DIRECT results 2016-06-24 12:01:00 -04:00
dns_resolve.c
dns_resolve.h
file.c direct-io: eliminate the offset argument to ->direct_IO 2016-05-01 19:58:39 -04:00
fscache-index.c
fscache.c
fscache.h
getroot.c
inode.c NFS: Fix potential race in nfs_fhget() 2016-06-24 12:01:00 -04:00
internal.h NFS: Fix an Oops in the pNFS files and flexfiles connection setup to the DS 2016-06-30 15:29:56 -04:00
iostat.h
Kconfig
Makefile
mount_clnt.c
namespace.c
netns.h
nfs2super.c
nfs2xdr.c
nfs3_fs.h
nfs3acl.c posix_acl: Inode acl caching fixes 2016-03-31 00:30:15 -04:00
nfs3client.c NFS: Fix an Oops in the pNFS files and flexfiles connection setup to the DS 2016-06-30 15:29:56 -04:00
nfs3proc.c
nfs3super.c
nfs3xdr.c
nfs4_fs.h NFSv4: Use the right stateid for delegations in setattr, read and write 2016-05-17 15:48:07 -04:00
nfs4client.c NFS: Fix an Oops in the pNFS files and flexfiles connection setup to the DS 2016-06-30 15:29:56 -04:00
nfs4file.c NFS: Add COPY nfs operation 2016-05-17 15:47:55 -04:00
nfs4getroot.c
nfs4idmap.c KEYS: Add a facility to restrict new links into a keyring 2016-04-11 22:37:37 +01:00
nfs4idmap.h
nfs4namespace.c
nfs4proc.c NFS: Fix another OPEN_DOWNGRADE bug 2016-06-28 16:55:34 -04:00
nfs4renewd.c
nfs4session.c NFSv4.x: Allow multiple callbacks in flight 2016-01-25 09:36:21 -05:00
nfs4session.h NFSv4.x: Allow multiple callbacks in flight 2016-01-25 09:36:21 -05:00
nfs4state.c nfs4: Fix potential use after free of state in nfs4_do_reclaim. 2016-06-24 12:01:00 -04:00
nfs4super.c
nfs4sysctl.c nfs: do not initialise statics to 0 2015-12-28 09:57:15 -05:00
nfs4trace.c pNFS: Modify pnfs_update_layout tracepoints to use layout stateid 2015-12-28 09:57:14 -05:00
nfs4trace.h pnfs: rework LAYOUTGET retry handling 2016-05-17 15:48:12 -04:00
nfs4xdr.c NFSv4: Label stateids with the type 2016-05-17 15:48:06 -04:00
nfs42.h NFS: Add COPY nfs operation 2016-05-17 15:47:55 -04:00
nfs42proc.c NFS client updates for Linux 4.7 2016-05-26 10:33:33 -07:00
nfs42xdr.c NFS: Add COPY nfs operation 2016-05-17 15:47:55 -04:00
nfs.h
nfsroot.c
nfstrace.c
nfstrace.h nfs: per-name sillyunlink exclusion 2016-05-09 11:39:45 -04:00
pagelist.c NFS: Add nfs_commit_file() 2016-05-17 15:47:55 -04:00
pnfs_dev.c
pnfs_nfs.c pnfs_nfs: fix _cancel_empty_pagelist 2016-06-24 12:01:00 -04:00
pnfs.c NFSv4.1/pnfs: Mark the layout stateid invalid when all segments are removed 2016-06-24 12:01:00 -04:00
pnfs.h pnfs: pnfs_update_layout needs to consider if strict iomode checking is on 2016-05-26 08:40:56 -04:00
proc.c
read.c NFS: Fix a double page unlock 2016-06-24 12:01:00 -04:00
super.c xprtrdma: Add rdma6 option to support NFS/RDMA IPv6 2016-05-17 15:47:56 -04:00
symlink.c switch ->get_link() to delayed_call, kill ->put_link() 2015-12-30 13:01:03 -05:00
sysctl.c
unlink.c nfs: per-name sillyunlink exclusion 2016-05-09 11:39:45 -04:00
write.c nfs: avoid race that crashes nfs_init_commit 2016-05-25 12:59:01 -04:00