[stgt] [PATCH] SEM Key Clash with Open-iSCSI initiator and FHS correction for ipc socket

[Or Gerlitz]

Roland Friedwagner wrote:
>  - Fix logging semaphore key clash between iscsd and tgtd

I tend to think we have that/similar clash also between multiple tgtd 
instances, e.g running two instances and using strace, I can see that 
both did "semget(0x54475444, 1, IPC_CREAT|0666)" is that also something
we need to address?

Or.


> # ps -afe | grep tgt
> root     11775  2331  0 18:50 pts/0    00:00:00 strace -ff -o /tmp/tgt0 ./tgtd -C 3260 --iscsi portal=0.0.0.0:3260
> root     11777     1  0 18:50 ?        00:00:00 ./tgtd -C 3260 --iscsi portal=0.0.0.0:3260
> root     11778 11777  0 18:50 ?        00:00:00 ./tgtd -C 3260 --iscsi portal=0.0.0.0:3260
> root     11780  2331  0 18:50 pts/0    00:00:00 strace -ff -o /tmp/tgt1 ./tgtd -C 3261 --iscsi portal=0.0.0.0:3261
> root     11782     1  0 18:50 ?        00:00:00 ./tgtd -C 3261 --iscsi portal=0.0.0.0:3261
> root     11783 11782  0 18:50 ?        00:00:00 ./tgtd -C 3261 --iscsi portal=0.0.0.0:3261

> # grep sem /tmp/tgt*
> /tmp/tgt0.11777:semget(0x54475444, 1, IPC_CREAT|0666)   = 32769
> /tmp/tgt0.11777:semctl(32769, 0, SETVAL, 0x1)           = 0
> /tmp/tgt0.11777:semtimedop(32769, 0x7fff99e98450, 1, {0, 10000000}) = 0
> /tmp/tgt0.11777:semop(32769, 0x7fff99e98450, 1)         = 0
> /tmp/tgt0.11777:semtimedop(32769, 0x7fff99e98480, 1, {0, 10000000}) = 0
> /tmp/tgt0.11777:semop(32769, 0x7fff99e98480, 1)         = 0
> /tmp/tgt0.11778:semop(32769, 0x7fff99e984a0, 1)         = 0
> /tmp/tgt0.11778:semop(32769, 0x7fff99e984a0, 1)         = 0
> /tmp/tgt0.11778:semop(32769, 0x7fff99e984a0, 1)         = 0
> /tmp/tgt0.11778:semop(32769, 0x7fff99e984a0, 1)         = 0
> /tmp/tgt1.11782:semget(0x54475444, 1, IPC_CREAT|0666)   = 32769
> /tmp/tgt1.11782:semctl(32769, 0, SETVAL, 0x1)           = 0
> /tmp/tgt1.11782:semtimedop(32769, 0x7fff76a45830, 1, {0, 10000000}) = 0
> /tmp/tgt1.11782:semop(32769, 0x7fff76a45830, 1)         = 0
> /tmp/tgt1.11782:semtimedop(32769, 0x7fff76a45860, 1, {0, 10000000}) = 0
> /tmp/tgt1.11782:semop(32769, 0x7fff76a45860, 1)         = 0
> /tmp/tgt1.11783:semop(32769, 0x7fff76a45880, 1)         = 0
> /tmp/tgt1.11783:semop(32769, 0x7fff76a45880, 1) = 0
> /tmp/tgt1.11783:semop(32769, 0x7fff76a45880, 1)         = 0
> /tmp/tgt1.11783:semop(32769, 0x7fff76a45880, 1)         = 0


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