Informix 11.5 64bit taking KAIO errors on Linux an
I am running 11.50FC3 informix 64 bit on a RedHat Linux 5.2.
WE are trying to get this version launched before the 9.4 rolls out of
release in April.
I am taking KAIO errors in my online log and then at some point each day my
engine assert fails.
The af file points to different programs each time so that I have been
unable to reproduce this at will.
I have a PMR open and so far no luck in solving this problem. I am hoping
someone else has run into this issue.
/informix/log> onstat -V IBM Informix Dynamic Server Version 11.50.FC3
The only thing I have found in my machine notes is to tune aio-max-nr. It
states to tune that based on the value of aio-nr however that number never
exceeds 100. At any rate I have increased it but I am still having
problems.
/proc/sys/fs/aio-nr - 100
/proc/sys/fs/aio-max-nr 131072
21:40:02 fildes = 259 (gfd 6), buf = 0x0x66f60000, nbytes = 8192, offset =
3934208
21:40:02 KAIO: error in kaio_WRITE, kaiocbp = 0x64995e58, errno = 0
21:40:02 fildes = 261 (gfd 8), buf = 0x0x67069000, nbytes = 8192, offset =
4147200
21:40:02 KAIO: error in kaio_WRITE, kaiocbp = 0x65485e58, errno = 0
21:40:02 fildes = 259 (gfd 6), buf = 0x0x6706d000, nbytes = 8192, offset =
4024320
21:40:02 KAIO: error in kaio_WRITE, kaiocbp = 0x62a307e0, errno = 0
21:40:02 fildes = 262 (gfd 9), buf = 0x0x6706b000, nbytes = 8192, offset =
2779136
21:40:02 KAIO: error in kaio_WRITE, kaiocbp = 0x6510ae58, errno = 0
21:40:02 fildes = 260 (gfd 7), buf = 0x0x6478e000, nbytes = 8192, offset =
3913728
21:40:02 KAIO: error in kaio_WRITE, kaiocbp = 0x62a41200, errno = 0
21:40:02 fildes = 261 (gfd 8), buf = 0x0x66f60000, nbytes = 8192, offset =
4098048
21:40:02 KAIO: error in kaio_WRITE, kaiocbp = 0x62a3adc0, errno = 0
21:40:02 fildes = 259 (gfd 6), buf = 0x0x653f9000, nbytes = 8192, offset =
4007936
21:40:02 KAIO: error in kaio_WRITE, kaiocbp = 0x6527bb68, errno = 0
21:40:02 fildes = 261 (gfd 8), buf = 0x0x67166000, nbytes = 8192, offset =
4204544
21:40:02 KAIO: error in kaio_WRITE, kaiocbp = 0x660e2b68, errno = 0
21:40:02 fildes = 262 (gfd 9), buf = 0x0x67166000, nbytes = 8192, offset =
2762752
21:40:02 KAIO: error in kaio_WRITE, kaiocbp = 0x62a35dc0, errno = 0
21:40:02 fildes = 261 (gfd 8), buf = 0x0x653f9000, nbytes = 8192, offset =
4106240
21:40:02 KAIO: error in kaio_WRITE, kaiocbp = 0x6512eb68, errno = 0
21:40:02 fildes = 260 (gfd 7), buf = 0x0x65f37000, nbytes = 8192, offset =
3987456
21:40:05 stack trace for pid 9658 written to /dumpdir/infdump/af.be0dcf5
21:40:05 Assert Failed: No Exception Handler
21:40:05 IBM Informix Dynamic Server Version 11.50.FC3
21:40:05 Who: Session(883, ilashes@mdsprdbb.turner.com, 2913, 0x61e68e28)
Thread(2040, sqlexec, 61e395f0, 1)
File: mtex.c Line: 481
21:40:05 Results: Exception Caught. Type: MT_EX_OS, Context: mem
21:40:05 Action: Please notify IBM Informix Technical Support.
21:40:05 See Also: /dumpdir/infdump/af.be0dcf5, shmem.be0dcf5.0
21:40:07 Recursive Exception - Server exiting
21:40:08 The Master Daemon Died
21:40:08 PANIC: Attempting to bring system down
Thanks in advance!!!!
Debbie Butler