- **Milestone**: 4.6.2 --> 4.7.2
---
** [tickets:#1804] imm: "OM Thread Interference" testcase crashes**
**Status:** assigned
**Milestone:** 4.7.2
**Created:** Tue May 03, 2016 11:05 AM UTC by Hung Nguyen
**Last Updated:** Tue May 03, 2016 11:05 AM UTC
**Owner:** Hung Nguyen
**Attachments:**
-
[bt_core.1461263164.immomtest.1536.PL-3](https://sourceforge.net/p/opensaf/tickets/1804/attachment/bt_core.1461263164.immomtest.1536.PL-3)
(7.4 kB; application/octet-stream)
Not always reproducible. Full backtrace is attached to this ticket.
root@SC-1:~# immomtest 1 20
~~~
Thread 4 (Thread 0x7f9299243780 (LWP 1536)):
#0 0x00007f92982f9f3d in nanosleep () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1 0x00007f929832b4a4 in usleep (useconds=<optimized out>) at
../sysdeps/unix/sysv/linux/usleep.c:32
ts = {tv_sec = 0, tv_nsec = 200000}
#2 0x0000000000432f6d in saImmOmThreadInterference_01 () at
test_saImmOmThreadInterference.c:173
immHandle = 498216338191
immOiHandle = 502511305487
ownerHandle = 1461263164437942973
searchHandle = 0
ccbHandle = 1461263164439715898
threadid1 = 140267581654784
threadid2 = 140267573262080
rc = SA_AIS_ERR_LIBRARY
attrDef = {attrName = 0x44e7b1 "rdn", attrValueType =
SA_IMM_ATTR_SASTRINGT, attrFlags = 258, attrDefaultValue = 0x0}
attrDefs = {0x7ffff768dc30, 0x0}
classCategory = (unknown: 4150844272)
attrDefinitions = 0x0
accessorHandle = 1461263164479509139
attributeNames = {0x44e7b5 "SaImmAttrClassName", 0x0}
attributes = 0x7ffff768de00
objNames = {0x666b00 <objectName>, 0x0}
attrValue = {attrName = 0x44e7b1 "rdn", attrValueType =
SA_IMM_ATTR_SANAMET, attrValuesNumber = 1, attrValues = 0x7ffff768dbd0}
attrValues = {0x7ffff768dc10, 0x0}
modAttrValue = {0x44e7c8, 0x0}
attrMod = {modType = SA_IMM_ATTR_VALUES_REPLACE, modAttr = {attrName =
0x44e7cd "attr4", attrValueType = SA_IMM_ATTR_SASTRINGT, attrValuesNumber = 1,
attrValues = 0x7ffff768dbf0}}
attrMods = {0x7ffff768dc50, 0x0}
__PRETTY_FUNCTION__ = "saImmOmThreadInterference_01"
#3 0x000000000043987e in run_test_case (suite=1, tcase=20) at utest.c:175
No locals.
#4 0x0000000000439c78 in test_run (suite=1, tcase=20) at utest.c:231
i = 32624793
j = 0
#5 0x0000000000442a71 in main (argc=4, argv=0x7ffff768de08) at immtest.c:113
suite = 1
tcase = 20
rc = 0
i = 4
index = 2
longDn = 1
failed = 0
endptr = 0x7ffff768ff0b ""
~~~
~~~
Thread 1 (Thread 0x7f929760c700 (LWP 1544)):
#0 0x00007f9298853add in search (pTree=0x7f9298d9e230 <imma_cb+176>,
key=0x7f929760be58 "\017\003\002") at patricia.c:93
pNode = 0x0
pPrevNode = 0x7f9298d9e230 <imma_cb+176>
#1 0x00007f9298854504 in ncs_patricia_tree_get (pTree=0x7f9298d9e230
<imma_cb+176>, pKey=0x7f929760be58 "\017\003\002") at patricia.c:433
pNode = 0x7f9298d9e198 <imma_cb+24>
#2 0x00007f9298b43602 in imma_client_node_get (client_tree=0x7f9298d9e230
<imma_cb+176>, cl_hdl=0x7f929760be58, cl_node=0x7f929760be70) at imma_db.c:55
No locals.
#3 0x00007f9298b35263 in saImmOiDispatch (immOiHandle=502511305487,
dispatchFlags=SA_DISPATCH_ONE) at imma_oi_api.c:531
rc = SA_AIS_OK
cb = 0x7f9298d9e180 <imma_cb>
cl_node = 0x0
locked = true
pend_fin = 0
pend_dis = 0
__FUNCTION__ = "saImmOiDispatch"
#4 0x0000000000432395 in implementer_thread (arg=0x7ffff768db68) at
test_saImmOmThreadInterference.c:63
fd = {{fd = 9, events = 1, revents = 32}}
selObject = 9
ret = 1
err = SA_AIS_OK
immOiHandle = 502511305487
#5 0x00007f9298606182 in start_thread (arg=0x7f929760c700) at
pthread_create.c:312
__res = <optimized out>
pd = 0x7f929760c700
now = <optimized out>
unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140267581654784,
8097029872058037852, 0, 0, 140267581655488, 140267581654784,
-8107813012334774692, -8107784432235776420}, mask_was_saved = 0}}, priv = {pad
= {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
not_first_call = <optimized out>
pagesize_m1 = <optimized out>
sp = <optimized out>
freesize = <optimized out>
__PRETTY_FUNCTION__ = "start_thread"
#6 0x00007f929833347d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:111
~~~
---
Analysis:
At the end of the testcase, saImmOiFinalize() is called on the main thread.
In saImmOiFinalize(), imma_callback_ipc_destroy() is called and indicates an
event on the OI sel-obj.
On the OI thread, saImmOiDispatch() is called due to the event on OI sel-obj.
So saImmOiFinalize() and saImmOiDispatch() are invoked simultaneously on two
different threads.
saImmOiFinalize() calls ncs_patricia_tree_del().
saImmOiDispatch() calls ncs_patricia_tree_get().
That causes the segmentation fault.
---
Sent from sourceforge.net because opensaf-tickets@lists.sourceforge.net is
subscribed to https://sourceforge.net/p/opensaf/tickets/
To unsubscribe from further messages, a project admin can change settings at
https://sourceforge.net/p/opensaf/admin/tickets/options. Or, if this is a
mailing list, you can unsubscribe from the mailing list.------------------------------------------------------------------------------
Find and fix application performance issues faster with Applications Manager
Applications Manager provides deep performance insights into multiple tiers of
your business applications. It resolves application problems quickly and
reduces your MTTR. Get your free trial!
https://ad.doubleclick.net/ddm/clk/302982198;130105516;z
_______________________________________________
Opensaf-tickets mailing list
Opensaf-tickets@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/opensaf-tickets
