* Re: BUG:: SYSV IPC shmem reported as "(deleted)" in process maps file
[not found] <3D6FDFF8.C0D86A3C@ncbi.nlm.nih.gov>
@ 2002-08-30 21:15 ` Anton Lavrentiev
2002-09-05 17:08 ` Christoph Rohland
0 siblings, 1 reply; 2+ messages in thread
From: Anton Lavrentiev @ 2002-08-30 21:15 UTC (permalink / raw)
To: linux-kernel, linus; +Cc: vakatov
Dear Linux Developers:
/proc/#/maps file of a process, which has a shared memory segment attached,
prints the segment as "(deleted)" while in fact the segment is fine and sound.
This seems to be quite confusing.
cat /proc/#/maps:
40018000-40022000 rw-s 00000000 00:05 5865476 /SYSV01315549 (deleted)
4021b000-40225000 rw-s 00000000 00:05 5898248 /SYSV012cc3bc (deleted)
ipcs -a:
0x01315549 5865476 ncbiduse 666 40960 1
0x012cc3bc 5898248 ncbiduse 666 40960 1
Best regards,
Anton Lavrentiev
NCBI/NLM/NIH
Bethesda MD 20894
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: BUG:: SYSV IPC shmem reported as "(deleted)" in process maps file
2002-08-30 21:15 ` BUG:: SYSV IPC shmem reported as "(deleted)" in process maps file Anton Lavrentiev
@ 2002-09-05 17:08 ` Christoph Rohland
0 siblings, 0 replies; 2+ messages in thread
From: Christoph Rohland @ 2002-09-05 17:08 UTC (permalink / raw)
To: Anton Lavrentiev; +Cc: linux-kernel, linus, vakatov
Hi Anton,
On Fri, 30 Aug 2002, Anton Lavrentiev wrote:
> cat /proc/#/maps:
> 40018000-40022000 rw-s 00000000 00:05 5865476 /SYSV01315549 (deleted)
> 4021b000-40225000 rw-s 00000000 00:05 5898248 /SYSV012cc3bc (deleted)
>
> ipcs -a:
> 0x01315549 5865476 ncbiduse 666 40960 1
> 0x012cc3bc 5898248 ncbiduse 666 40960 1
Works as designed.
The internal implementation creates the file unlinked. SYSV is one
holder of this open file. The display may be irritating but IMHO its
internal simplicity is worth to live with it.
Greetings
Christoph
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2002-08-30 21:15 ` BUG:: SYSV IPC shmem reported as "(deleted)" in process maps file Anton Lavrentiev
2002-09-05 17:08 ` Christoph Rohland
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