Segfault in MediaMonitor following 027352d62

[stuartm]

Following [027352d62] plugging in a USB storage device causes the frontend to crash.

Backtrace + Log - ​http://pastebin.com/zjAy8xE6

[Lawrence Rust <lvr@…>]

I think that this looks more like a problem with memory corruption. Certainly the backtrace shows the exception is in MythMediaDevice::performMountCmd (called from the patched MediaMonitor::CheckDevices) but the failing line is a LOG output and Qt is simply formatting a string.

Earlier in the log are numerous lines showing the attempted mount command without problem. Would be useful to see a valgrind run.

[Github]

Do not keep trying to mount when it fails

Refs #10221

If a USB stick (or other removable drive) is attached to the frontend, and the user running the frontend is not able to mount it with "mount /dev/sdc1" or the like, we do not want to keep trying (twice a second!) to mount it. There's no purpose to that other than extra load, and filling log files with useless crap.

Branch: master Changeset: 1193d2468e7bb110c146aace9c6b24e7d7ac6184

[beirdo]

I can not reproduce the crash. However, the repeated mounting is now gone. If you could retest and see if this does it for you, I'd appreciate it.

Also, just a note: for the QDbus stuff to work, (in ubuntu at least), you need the "dbus" and "udisks" packages both installed.

[stuartm]

Without the repeated attempts to mount the segfault is no longer repeatable.