Am 13.01.19 um 17:01 schrieb Bill Gribble:
This has just popped up on my audio machine and I am not sure
what is going on. It's probably a change somewhere in PAM or
GDM config. If anyone knows what's up I would appreciate a clue.
Thanks!
Bill Gribble
# Some audio clients work fine, but Aeolus doesn't
grib@ghost:~$ aeolus
Cannot mmap shm segment /jack-1000-0 (Resource temporarily unavailable)
Map shared memory segments exception
JackShmReadWritePtr1::~JackShmReadWritePtr1 - Init not done for -1,
skipping unlock
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for 0,
skipping unlock
Error: can't connect to JACK
# Ok, what's that shared memory segment?
grib@ghost:~$ ls -l /dev/shm/
total 80440
-rw-r--r-- 1 grib grib 82280346 Jan 13 10:49 jack-1000-0
-rw-r--r-- 1 grib grib 1187 Jan 13 10:49 jack-1000-1
-rw-rw-rw- 1 grib grib 70744 Jan 13 10:33 jack-shm-registry
srwxr-xr-x 1 grib grib 0 Jan 13 10:49 jack_default_1000_0
-rwxr-xr-x 1 grib grib 12 Jan 13 10:49
jack_sem.1000_default_freewheel
-rwxr-xr-x 1 grib grib 12 Jan 13 10:49
jack_sem.1000_default_qjackctl
-rwxr-xr-x 1 grib grib 12 Jan 13 10:49 jack_sem.1000_default_system
# I would get -EAGAIN if the segment was too big... what's the limit?
grib@ghost:~$ ulimit -l
65536
# What? Just 64MB? That explains the error,
# but I thought audio group had unlimited memlock
grib@ghost:~$ groups
grib cdrom floppy audio dip video plugdev staff netdev bluetooth
grib@ghost:~$ grep memlock /etc/security/limits.d/audio.conf
@audio - memlock unlimited
# And in a crazy debugging fit I even set everybody's memlock
# really high ... so why is this process limited to 64MB?
grib@ghost:~$ grep memlock /etc/security/limits.conf
# - memlock - max locked-in-memory address space (KB)
* - memlock 512000
when I do a grep memlock /etc/security/limits.conf I get
# - memlock - max locked-in-memory address space (KB)
at least, there is not a single active entry in my limits.conf at all.
Maybe just remove it, no Idea were it could come from.
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