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| author |   wang di <di.wang@intel.com> | 2013-06-03 21:40:39 +0800 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-06-03 11:26:34 -0700 |
| commit | 4ee688d0d0a2600fda39b128c3a9fa081612bfa6 (patch) | |
| tree | bdf5752bb9335c132402b02b2b6aef4991685e75 /drivers/staging/lustre | |
| parent | staging/lustre/clio: don't ignore layout on writeback (diff) | |
| download | linux-dev-4ee688d0d0a2600fda39b128c3a9fa081612bfa6.tar.xz linux-dev-4ee688d0d0a2600fda39b128c3a9fa081612bfa6.zip | |
staging/lustre/ofd: refill env in ofd_get_info
Because ofd_get_info(KEY_FIEMAP) might be called from
ptlrpc_server_handle_req_in(see the stack below),
where env might not be initialized correctly(see LBUG below),
so it refill refill in ofd_get_info.
LutreError: 19182:0:(ofd_internal.h:518:ofd_info_init()) LBUG
Pid: 19182, comm: ll_ost_io00_001
Call Trace:
[<ffffffffa044e895>] libcfs_debug_dumpstack+0x55/0x80 [libcfs]
[<ffffffffa044ee97>] lbug_with_loc+0x47/0xb0 [libcfs]
[<ffffffffa0e03e62>] ofd_info_init+0x92/0x130 [ofd]
[<ffffffffa0e05835>] ofd_get_info+0x2e5/0xa90 [ofd]
[<ffffffff812805cd>] ? pointer+0x8d/0x830
[<ffffffffa029f7e5>] ? lprocfs_counter_add+0x125/0x182 [lvfs]
[<ffffffffa078528a>] nrs_orr_range_fill_physical+0x18a/0x540
[ptlrpc]
[<ffffffffa0762dd6>] ? __req_capsule_get+0x166/0x700 [ptlrpc]
[<ffffffffa073e630>] ? lustre_swab_ost_body+0x0/0x10 [ptlrpc]
[<ffffffffa07871d7>] nrs_orr_res_get+0x817/0xb80 [ptlrpc]
[<ffffffffa077d306>] nrs_resource_get+0x56/0x110 [ptlrpc]
[<ffffffffa077dccb>] nrs_resource_get_safe+0x8b/0x100 [ptlrpc]
[<ffffffffa0780248>] ptlrpc_nrs_req_initialize+0x38/0x90 [ptlrpc]
[<ffffffffa074cff0>] ptlrpc_main+0x1170/0x16f0 [ptlrpc]
[<ffffffffa074be80>] ? ptlrpc_main+0x0/0x16f0 [ptlrpc]
[<ffffffff8100c0ca>] child_rip+0xa/0x20
[<ffffffffa074be80>] ? ptlrpc_main+0x0/0x16f0 [ptlrpc]
[<ffffffffa074be80>] ? ptlrpc_main+0x0/0x16f0 [ptlrpc]
[<ffffffff8100c0c0>] ? child_rip+0x0/0x20
[picked ptlrpc part for upstream kernel submission]
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3239
Lustre-change: http://review.whamcloud.com/6204
Signed-off-by: wang di <di.wang@intel.com>
Reviewed-by: Alex Zhuravlev <alexey.zhuravlev@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Nikitas Angelinas <nikitas_angelinas@xyratex.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: Peng Tao <tao.peng@emc.com>
Signed-off-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/lustre')
| -rw-r--r-- | drivers/staging/lustre/lustre/ptlrpc/service.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/staging/lustre/lustre/ptlrpc/service.c b/drivers/staging/lustre/lustre/ptlrpc/service.c index 80111273b2dc..1667b8e86012 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/service.c +++ b/drivers/staging/lustre/lustre/ptlrpc/service.c @@ -2396,6 +2396,7 @@ static int ptlrpc_main(void *arg) /* Process all incoming reqs before handling any */ if (ptlrpc_server_request_incoming(svcpt)) { lu_context_enter(&env->le_ctx); + env->le_ses = NULL; ptlrpc_server_handle_req_in(svcpt, thread); lu_context_exit(&env->le_ctx); |