[pulseaudio-discuss] pstream.c: Failed to import memory block.

Lennart Poettering lennart at poettering.net
Tue Nov 20 12:10:00 PST 2007

On Tue, 20.11.07 13:48, Jon Smirl (jonsmirl at gmail.com) wrote:

> > What are the access modes of the pulse files in /dev/shm?
> jonsmirl at terra:/dev/shm$ ls -la
> total 8
> drwxrwxrwt  2 root  root       60 2007-11-20 13:39 .
> drwxr-xr-x 12 root  root    14740 2007-11-20 09:07 ..
> -r--------  1 pulse pulse 2097152 2007-11-20 13:39 pulse-shm-4056509080
> jonsmirl at terra:/dev/shm$

Ah, so you are running PA as system-wide daemon? Please don't do that
unless you really know what you do.

PA makes SHM segments only accessible to users with identical user
ids. Apparently in your case you coppied the auth cookie to all your
users, or disabled auth entirely -- however the SHM segment is still
not accessible to normal users.

You probably hit this bug:


You can fix this, by disabling SHM data access in daemon.conf. The fix
for #95 will do just that anyway.

> I've filed some bugs in trac about USB audio on pulse. You said they
> were HAL problems, have the HAL developers been nagged
> appropriately?

Hmm? USB? Did I miss something?


Lennart Poettering                        Red Hat, Inc.
lennart [at] poettering [dot] net         ICQ# 11060553
http://0pointer.net/lennart/           GnuPG 0x1A015CC4

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