one question related with this: would KAIO be supported on such configuration ?
At least trying to open /dev/zvol/rdsk/datapool/master where master is defined
as:
# zpool create -f datapool mirror c1t1d0 c2t0d0
# zfs create -V 1gb datapool/master
# ls -lrt /dev/zvol/rdsk/datapool/master
lrwxrwxrwx 1 root root 39 Feb 1 18:29 /dev/zvol/rdsk/datapool/master ->
../../../../devices/pseudo/z...@0:3c,raw
resulted with:
# truss -t kaio,lwp_create ./test-kaio /dev/zvol/rdsk/datapool/master
kaio(AIOINIT) = 0
lwp_create(0x08046860, LWP_DAEMON|LWP_DETACHED|LWP_SUSPENDED, 0x0804685C) = 2
/2: lwp_create() (returning as new lwp ...) = 0
/1: kaio(AIOREAD, 5, 0x08046C2C, 1024, 0, 0x0804702C) Err#81 EBADFD
/1: lwp_create(0x08046820, LWP_DAEMON|LWP_DETACHED|LWP_SUSPENDED, 0x0804681C) =
3
/3: lwp_create() (returning as new lwp ...) = 0
/1: lwp_create(0x08046820, LWP_DAEMON|LWP_DETACHED|LWP_SUSPENDED, 0x0804681C) =
4
/4: lwp_create() (returning as new lwp ...) = 0
/1: lwp_create(0x08046820, LWP_DAEMON|LWP_DETACHED|LWP_SUSPENDED, 0x0804681C) =
5
/5: lwp_create() (returning as new lwp ...) = 0
/1: lwp_create(0x08046820, LWP_DAEMON|LWP_DETACHED|LWP_SUSPENDED, 0x0804681C) =
6
/6: lwp_create() (returning as new lwp ...) = 0
/1: lwp_create(0x08046820, LWP_DAEMON|LWP_DETACHED|LWP_SUSPENDED, 0x0804681C) =
7
/7: lwp_create() (returning as new lwp ...) = 0
/4: kaio(AIONOTIFY) = 0
/1: kaio(AIOWAIT, 0x00000000, 0) = 1
aio succeeded
Comments ? The original question came from a real setup using Sybase which
spits a lot of:
733/1: 4137604 6 1 kaio(0x2, 0xFFFFFFFFFFFFFFFF, 0x1) =
-1 Err#22
733/1: 4137611 7 3 pollsys(0x1000010B3A8, 0x1A, 0x10009FE6BF0)
= 1 0
733/1: 4137614 3 0 kaio(0x2, 0xFFFFFFFFFFFFFFFF, 0x1)
= -1 Err#22
733/1: 4137622 5 2 recv(0x17, 0x100044F20F0, 0x800) =
109 0
733/1: 4137626 3 0 kaio(0x2, 0xFFFFFFFFFFFFFFFF, 0x1)
= -1 Err#22
733/1: 4137631 6 2 pollsys(0x1000010B3A8, 0x1A, 0x10009FE6BF0)
= 0 0
733/1: 4137633 3 0 kaio(0x2, 0xFFFFFFFFFFFFFFFF, 0x1)
= -1 Err#22
733/1: 4137636 4 1 pollsys(0x1000010B3A8, 0x1A, 0x10009FE6BF0)
= 0 0
733/1: 4137637 3 0 kaio(0x2, 0xFFFFFFFFFFFFFFFF, 0x1)
= -1 Err#22
733/1: 4137641 4 1 pollsys(0x1000010B3A8, 0x1A, 0x10009FE6BF0)
= 0 0
733/1: 4137642 3 0 kaio(0x2, 0xFFFFFFFFFFFFFFFF, 0x1)
= -1 Err#22
733/1: 4137646 4 1 pollsys(0x1000010B3A8, 0x1A, 0x10009FE6BF0)
= 0 0
733/1: 4137647 3 0 kaio(0x2, 0xFFFFFFFFFFFFFFFF, 0x1)
= -1 Err#22
733/1: 4137650 4 1 pollsys(0x1000010B3A8, 0x1A, 0x10009FE6BF0)
= 0 0
733/1: 4137652 3 0 kaio(0x2, 0xFFFFFFFFFFFFFFFF, 0x1)
= -1 Err#22
733/1: 4137655 4 1 pollsys(0x1000010B3A8, 0x1A, 0x10009FE6BF0)
= 0 0
733/1: 4137657 4 0 kaio(0x2, 0xFFFFFFFFFFFFFFFF, 0x1)
= -1 Err#22
733/1: 4137660 4 1 pollsys(0x1000010B3A8, 0x1A, 0x10009FE6BF0)
= 0 0
Thanks,
Stefan
test-kaio.c
http://sunsite.uakom.sk/sunworldonline/swol-07-1998/swol-07-insidesolaris.html
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