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Informix - Problem description

Problem IT44118 Status: Closed

AN ENCRYPT THREAD CAN LOOP FOREVER IN A RUNNING STATE WHEN ERRNOIS 11

product:
INFORMIX SERVER / 5725A3900 / E10 - 
Problem description:
The customer has a number of encrypt threads and occasionally
sees an sqlexec thread that is constantly running on an encrypt
vp.

A gstack output shows various stacks ...

#0  0x000000000166ff20 in net_buf_get ()
#1  0x0000000001618af3 in ssl_callback_read ()
#2  0x00007fd28962e337 in ?? () from /lib64/libgsk8ssl_64.so
#3  0x00007fd28955f708 in ?? () from /lib64/libgsk8ssl_64.so
#4  0x00007fd2895615cd in ?? () from /lib64/libgsk8ssl_64.so
#5  0x00007fd2895020d4 in ?? () from /lib64/libgsk8ssl_64.so
#6  0x00007fd289547657 in ?? () from /lib64/libgsk8ssl_64.so
#7  0x00007fd2893f24aa in gsk_secure_soc_read () from
/lib64/libgsk8ssl_64.so
#8  0x00007fd2898a38bf in ISI_ssl_read () from
/informix/INST/ids__chaos_dev__b1/lib/libisi.so.2
#9  0x00000000016505bc in isi_ssl_read ()
#10 0x0000000001617146 in ssl_recv ()
#11 0x0000000001611dc2 in recvsocket ()
#12 0x00000000016698ba in slSQIrsp ()
#13 0x00000000016620fc in pfConRes ()
#14 0x00000000015efbbf in ASF_Call ()
#15 0x00000000016045a9 in send_reject.isra.0 ()
#16 0x0000000001603b1b in spawn_thread ()
#17 0x00000000014bcfa3 in th_init_initgls ()
#18 0x00000000015054bf in startup ()

Another shows the TOS as ...

#0  0x00000000014b5390 in lock_held ()
#1  0x00000000014e1648 in mt_unlock ()
#2  0x000000000166fed9 in net_buf_get ()
#3  0x0000000001618af3 in ssl_callback_read ()
#4  0x00007fd28962e337 in ?? () from /lib64/libgsk8ssl_64.so
#5  0x00007fd28955f708 in ?? () from /lib64/libgsk8ssl_64.so
...

The engine is within a tight loop where the bottom function is
...

     ISI_ssl_read () from
/informix/INST/ids__chaos_dev__b1/lib/libisi.so.2

The engine needs to be bounced.
Problem Summary:
****************************************************************
* USERS AFFECTED:                                              *
* Users of Informix Server prior to 14.10.xC11.                *
****************************************************************
* PROBLEM DESCRIPTION:                                         *
* See Error Description                                        *
****************************************************************
* RECOMMENDATION:                                              *
* Upgrade to Informix Server 14.10.xC11.                       *
****************************************************************
Local Fix:
Solution
Workaround
****************************************************************
* USERS AFFECTED:                                              *
* Users of Informix Server prior to 14.10.xC11.                *
****************************************************************
* PROBLEM DESCRIPTION:                                         *
* See Error Description                                        *
****************************************************************
* RECOMMENDATION:                                              *
* Upgrade to Informix Server 14.10.xC11.                       *
****************************************************************
Comment
Fixed in Informix Server 14.10.xC11.
Timestamps
Date  - problem reported    :
Date  - problem closed      :
Date  - last modified       :
07.07.2023
11.06.2024
11.06.2024
Problem solved at the following versions (IBM BugInfos)
Problem solved according to the fixlist(s) of the following version(s)