* fio 2.0.9 fails: shmget: No space left on device
@ 2012-09-21 11:51 Konstantin Boyandin
2012-09-21 12:15 ` Jens Axboe
0 siblings, 1 reply; 6+ messages in thread
From: Konstantin Boyandin @ 2012-09-21 11:51 UTC (permalink / raw)
To: fio
Hello,
When trying to run the command line
fio --bs=4k --size=128m --direct=1 --runtime=10 --rw=randread
--numjobs=32 --group_reporting --time_based --name=128m
I see only this:
shmget: No space left on device
error: failed to setup shm segment
Environment:
# cat /etc/redhat-release
CentOS release 6.3 (Final)
# uname -a
Linux vpseer 2.6.32-042stab059.7 #1 SMP Tue Jul 24 19:12:01 MSK 2012
x86_64 x86_64 x86_64 GNU/Linux
# virt-what
openvz
# df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/simfs 52428800 1590532 50838268 4% /
none 526336 4 526332 1% /dev
none 526336 0 526336 0% /dev/shm
If additional info required, please tell me.
Thanks.
Sincerely,
Konstantin
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: fio 2.0.9 fails: shmget: No space left on device
2012-09-21 11:51 fio 2.0.9 fails: shmget: No space left on device Konstantin Boyandin
@ 2012-09-21 12:15 ` Jens Axboe
2012-09-21 12:34 ` Konstantin Boyandin
0 siblings, 1 reply; 6+ messages in thread
From: Jens Axboe @ 2012-09-21 12:15 UTC (permalink / raw)
To: Konstantin Boyandin; +Cc: fio
On 09/21/2012 01:51 PM, Konstantin Boyandin wrote:
> Hello,
>
> When trying to run the command line
>
> fio --bs=4k --size=128m --direct=1 --runtime=10 --rw=randread
> --numjobs=32 --group_reporting --time_based --name=128m
>
> I see only this:
>
> shmget: No space left on device
> error: failed to setup shm segment
Hmmm. Can you send me the output of:
$ grep . /proc/sys/kernel/shm*
$ ipcs -l
$ ipcs -m
--
Jens Axboe
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: fio 2.0.9 fails: shmget: No space left on device
2012-09-21 12:15 ` Jens Axboe
@ 2012-09-21 12:34 ` Konstantin Boyandin
2012-09-21 12:37 ` Jens Axboe
0 siblings, 1 reply; 6+ messages in thread
From: Konstantin Boyandin @ 2012-09-21 12:34 UTC (permalink / raw)
To: fio; +Cc: Jens Axboe
Hello Jens,
On 09/21/2012 07:15 PM, Jens Axboe wrote:
> On 09/21/2012 01:51 PM, Konstantin Boyandin wrote:
>> Hello,
>>
>> When trying to run the command line
>>
>> fio --bs=4k --size=128m --direct=1 --runtime=10 --rw=randread
>> --numjobs=32 --group_reporting --time_based --name=128m
>>
>> I see only this:
>>
>> shmget: No space left on device
>> error: failed to setup shm segment
>
> Hmmm. Can you send me the output of:
>
> $ grep . /proc/sys/kernel/shm*
/proc/sys/kernel/shmall:2097152
/proc/sys/kernel/shmmax:33554432
/proc/sys/kernel/shmmni:4096
/proc/sys/kernel/shm_rmid_forced:0
> $ ipcs -l
------ Shared Memory Limits --------
max number of segments = 4096
max seg size (kbytes) = 32768
max total shared memory (kbytes) = 8388608
min seg size (bytes) = 1
------ Semaphore Limits --------
max number of arrays = 128
max semaphores per array = 250
max semaphores system wide = 32000
max ops per semop call = 32
semaphore max value = 32767
------ Messages: Limits --------
max queues system wide = 6365
max size of message (bytes) = 8192
default max size of queue (bytes) = 16384
> $ ipcs -m
------ Shared Memory Segments --------
key shmid owner perms bytes nattch status
The VM wasn't restarted after the fio failed run.
fio was run by root user.
Sincerely,
Konstantin
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: fio 2.0.9 fails: shmget: No space left on device
2012-09-21 12:34 ` Konstantin Boyandin
@ 2012-09-21 12:37 ` Jens Axboe
2012-09-21 13:02 ` Konstantin Boyandin
0 siblings, 1 reply; 6+ messages in thread
From: Jens Axboe @ 2012-09-21 12:37 UTC (permalink / raw)
To: Konstantin Boyandin; +Cc: fio
On 09/21/2012 02:34 PM, Konstantin Boyandin wrote:
> Hello Jens,
>
> On 09/21/2012 07:15 PM, Jens Axboe wrote:
>> On 09/21/2012 01:51 PM, Konstantin Boyandin wrote:
>>> Hello,
>>>
>>> When trying to run the command line
>>>
>>> fio --bs=4k --size=128m --direct=1 --runtime=10 --rw=randread
>>> --numjobs=32 --group_reporting --time_based --name=128m
>>>
>>> I see only this:
>>>
>>> shmget: No space left on device
>>> error: failed to setup shm segment
>>
>> Hmmm. Can you send me the output of:
>>
>> $ grep . /proc/sys/kernel/shm*
>
> /proc/sys/kernel/shmall:2097152
> /proc/sys/kernel/shmmax:33554432
> /proc/sys/kernel/shmmni:4096
> /proc/sys/kernel/shm_rmid_forced:0
>
>> $ ipcs -l
>
> ------ Shared Memory Limits --------
> max number of segments = 4096
> max seg size (kbytes) = 32768
> max total shared memory (kbytes) = 8388608
> min seg size (bytes) = 1
>
> ------ Semaphore Limits --------
> max number of arrays = 128
> max semaphores per array = 250
> max semaphores system wide = 32000
> max ops per semop call = 32
> semaphore max value = 32767
>
> ------ Messages: Limits --------
> max queues system wide = 6365
> max size of message (bytes) = 8192
> default max size of queue (bytes) = 16384
>
>> $ ipcs -m
>
> ------ Shared Memory Segments --------
> key shmid owner perms bytes nattch status
>
> The VM wasn't restarted after the fio failed run.
>
> fio was run by root user.
Oh, try with this please.
diff --git a/init.c b/init.c
index da1f472..b3215f5 100644
--- a/init.c
+++ b/init.c
@@ -254,7 +254,7 @@ static int setup_thread_area(void)
shm_id = shmget(0, size, IPC_CREAT | 0600);
if (shm_id != -1)
break;
- if (errno != EINVAL && errno != ENOMEM) {
+ if (errno != EINVAL && errno != ENOMEM && errno != ENOSPC) {
perror("shmget");
break;
}
--
Jens Axboe
^ permalink raw reply related [flat|nested] 6+ messages in thread* Re: fio 2.0.9 fails: shmget: No space left on device
2012-09-21 12:37 ` Jens Axboe
@ 2012-09-21 13:02 ` Konstantin Boyandin
2012-09-21 13:06 ` Jens Axboe
0 siblings, 1 reply; 6+ messages in thread
From: Konstantin Boyandin @ 2012-09-21 13:02 UTC (permalink / raw)
To: Jens Axboe; +Cc: fio
Hello Jens,
On 09/21/2012 07:37 PM, Jens Axboe wrote:
> On 09/21/2012 02:34 PM, Konstantin Boyandin wrote:
>> Hello Jens,
>>
>> On 09/21/2012 07:15 PM, Jens Axboe wrote:
>>> On 09/21/2012 01:51 PM, Konstantin Boyandin wrote:
>>>> Hello,
>>>>
>>>> When trying to run the command line
>>>>
>>>> fio --bs=4k --size=128m --direct=1 --runtime=10 --rw=randread
>>>> --numjobs=32 --group_reporting --time_based --name=128m
>>>>
>>>> I see only this:
>>>>
>>>> shmget: No space left on device
>>>> error: failed to setup shm segment
>>>
>>> Hmmm. Can you send me the output of:
>>>
>>> $ grep . /proc/sys/kernel/shm*
>>
>> /proc/sys/kernel/shmall:2097152
>> /proc/sys/kernel/shmmax:33554432
>> /proc/sys/kernel/shmmni:4096
>> /proc/sys/kernel/shm_rmid_forced:0
>>
>>> $ ipcs -l
>>
>> ------ Shared Memory Limits --------
>> max number of segments = 4096
>> max seg size (kbytes) = 32768
>> max total shared memory (kbytes) = 8388608
>> min seg size (bytes) = 1
>>
>> ------ Semaphore Limits --------
>> max number of arrays = 128
>> max semaphores per array = 250
>> max semaphores system wide = 32000
>> max ops per semop call = 32
>> semaphore max value = 32767
>>
>> ------ Messages: Limits --------
>> max queues system wide = 6365
>> max size of message (bytes) = 8192
>> default max size of queue (bytes) = 16384
>>
>>> $ ipcs -m
>>
>> ------ Shared Memory Segments --------
>> key shmid owner perms bytes nattch status
>>
>> The VM wasn't restarted after the fio failed run.
>>
>> fio was run by root user.
>
> Oh, try with this please.
>
> diff --git a/init.c b/init.c
> index da1f472..b3215f5 100644
> --- a/init.c
> +++ b/init.c
> @@ -254,7 +254,7 @@ static int setup_thread_area(void)
> shm_id = shmget(0, size, IPC_CREAT | 0600);
> if (shm_id != -1)
> break;
> - if (errno != EINVAL && errno != ENOMEM) {
> + if (errno != EINVAL && errno != ENOMEM && errno != ENOSPC) {
> perror("shmget");
> break;
> }
The patch worked fine, thank you!
fio works now as expected.
Sincerely,
Konstantin
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: fio 2.0.9 fails: shmget: No space left on device
2012-09-21 13:02 ` Konstantin Boyandin
@ 2012-09-21 13:06 ` Jens Axboe
0 siblings, 0 replies; 6+ messages in thread
From: Jens Axboe @ 2012-09-21 13:06 UTC (permalink / raw)
To: Konstantin Boyandin; +Cc: fio
On 09/21/2012 03:02 PM, Konstantin Boyandin wrote:
> Hello Jens,
>
> On 09/21/2012 07:37 PM, Jens Axboe wrote:
>> On 09/21/2012 02:34 PM, Konstantin Boyandin wrote:
>>> Hello Jens,
>>>
>>> On 09/21/2012 07:15 PM, Jens Axboe wrote:
>>>> On 09/21/2012 01:51 PM, Konstantin Boyandin wrote:
>>>>> Hello,
>>>>>
>>>>> When trying to run the command line
>>>>>
>>>>> fio --bs=4k --size=128m --direct=1 --runtime=10 --rw=randread
>>>>> --numjobs=32 --group_reporting --time_based --name=128m
>>>>>
>>>>> I see only this:
>>>>>
>>>>> shmget: No space left on device
>>>>> error: failed to setup shm segment
>>>>
>>>> Hmmm. Can you send me the output of:
>>>>
>>>> $ grep . /proc/sys/kernel/shm*
>>>
>>> /proc/sys/kernel/shmall:2097152
>>> /proc/sys/kernel/shmmax:33554432
>>> /proc/sys/kernel/shmmni:4096
>>> /proc/sys/kernel/shm_rmid_forced:0
>>>
>>>> $ ipcs -l
>>>
>>> ------ Shared Memory Limits --------
>>> max number of segments = 4096
>>> max seg size (kbytes) = 32768
>>> max total shared memory (kbytes) = 8388608
>>> min seg size (bytes) = 1
>>>
>>> ------ Semaphore Limits --------
>>> max number of arrays = 128
>>> max semaphores per array = 250
>>> max semaphores system wide = 32000
>>> max ops per semop call = 32
>>> semaphore max value = 32767
>>>
>>> ------ Messages: Limits --------
>>> max queues system wide = 6365
>>> max size of message (bytes) = 8192
>>> default max size of queue (bytes) = 16384
>>>
>>>> $ ipcs -m
>>>
>>> ------ Shared Memory Segments --------
>>> key shmid owner perms bytes nattch status
>>>
>>> The VM wasn't restarted after the fio failed run.
>>>
>>> fio was run by root user.
>>
>> Oh, try with this please.
>>
>> diff --git a/init.c b/init.c
>> index da1f472..b3215f5 100644
>> --- a/init.c
>> +++ b/init.c
>> @@ -254,7 +254,7 @@ static int setup_thread_area(void)
>> shm_id = shmget(0, size, IPC_CREAT | 0600);
>> if (shm_id != -1)
>> break;
>> - if (errno != EINVAL && errno != ENOMEM) {
>> + if (errno != EINVAL && errno != ENOMEM && errno != ENOSPC) {
>> perror("shmget");
>> break;
>> }
>
> The patch worked fine, thank you!
> fio works now as expected.
Excellent. Thanks for the report, fix has been committed.
--
Jens Axboe
^ permalink raw reply [flat|nested] 6+ messages in thread
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2012-09-21 11:51 fio 2.0.9 fails: shmget: No space left on device Konstantin Boyandin
2012-09-21 12:15 ` Jens Axboe
2012-09-21 12:34 ` Konstantin Boyandin
2012-09-21 12:37 ` Jens Axboe
2012-09-21 13:02 ` Konstantin Boyandin
2012-09-21 13:06 ` Jens Axboe
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