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Problem IT31865
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Status: Closed |
PERIODIC THREAD CAN SEGV CALLING MT_FAST_CLOCK IN BFFINDFREE WHEN LRUS ARE NOT SPECIFIED IN BUFFERPOOL ONCONFIG PARAM
|
| product: |
INFORMIX SERVER / 5725A3900 / C10 - IDS 12.10 |
| Problem description: |
The following assert was reported in 12.10.UC9 on linux32
11:48:06 Stack for thread: 20 periodic
base: 0x4673a000
len: 69632
pc: 0x08dd9509
tos: 0x46749b80
state: running
vp: 1
afstack
mt_ex_throw_sig
afsig_handler
mt_fast_clock
bffindfree
buffget
getpage
allocpage
lic_init
lic_check_info
periodic_thread
th_init_initgls
startup
This problem occurs when the BUFFERPOOL is configured without an
lrus parameter like:
BUFFERPOOL default,memory='auto'
BUFFERPOOL size=2k,memory=500MB
The failure can happen on a 32-bit system if the machine has
more than 64 cpus and on a 64-bit system if the machine has more
than 256 cpus. |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* Users of Informix Server prior to 12.10.xC14. *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Update to Informix Server 12.10.xC14. *
**************************************************************** |
| Local Fix: |
Configure a bufferpool with an 'lrus' setting like:
BUFFERPOOL
size=2k,buffers=250000,lrus=128,lru_min_dirty=50,lru_max_dirty=6
0 |
| Solution |
|
| Workaround |
****************************************************************
* USERS AFFECTED: *
* Users of Informix Server prior to 12.10.xC14. *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Update to Informix Server 12.10.xC14. *
**************************************************************** |
| Comment |
Update to Informix Server 12.10.xC14. |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 13.02.2020
04.03.2020
04.03.2020 |
| Problem solved at the following versions (IBM BugInfos) |
12.10.xC14
|
| Problem solved according to the fixlist(s) of the following version(s) |
