Opened 8 years ago
Closed 8 years ago
Last modified 8 years ago
#12583 closed Bug Report - Hang/Deadlock (Upstream Bug)
Backend setup failed & locked my computer
Reported by: | Owned by: | JYA | |
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Priority: | major | Milestone: | unknown |
Component: | MythTV - Mythtv-setup | Version: | 0.27.3 |
Severity: | medium | Keywords: | |
Cc: | Ticket locked: | no |
Description
I use Mythbuntu 14.04, on 3 PCs, dedicated to recording TV. This setup is usually OK.
One of my hard drives, for storing recorded TV, failed, so I planned to remove it from storage devices.
When I clicked on Backend setup, the standard light & dark blue/wavy screen opened, but there was no menu. Instead a bug report popped-up .
However, neither the mouse nor keyboard would work.
So, I could not send the bug report, nor could I exit this app, nor shut down the computer.
I had to use the power button to shut down.
I did not think to try ctl/alt/F1 at that time.
I rebooted & tried again, with the same result in myth backend setup. However, this time, I used ctl/alt/del to access a terminal & was able to shut it down from there.
This was the master backend. I have a separate frontend, plus one slave backend.
When I rebooted again, I confirmed that Myth itself worked, so I just left it alone. Recordings seemed to work OK, so I guess that Myth knew that one of the HDD was missing & used the other HDD. I also directed most of the recordings to the tuners on the slave backend, so as to use its storage HDD.
Change History (3)
comment:1 Changed 8 years ago by
comment:2 Changed 8 years ago by
Resolution: | → Upstream Bug |
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Status: | new → closed |
It crashed in the nouveau library not in MythTV, and since the whole machine locked up the problem can only have been in the kernel or a driver itself. A complete machine lockup is only caused when the problem occurred in the kernel.
comment:3 Changed 8 years ago by
Thanks for your comment - it gave me a bit of a clue.
I am mostly an end user, so not all that familiar with these things, but I remembered from somewhere that "nouveau" related to graphics, particularly in the context of "driver".
I changed my graphics card & the problem went away.
Garry.
I noticed on a scrap of paper that I had written the bug info:
"/usr/bin/mythtv-setup.real crashed with SIGSEGV in nouveau_bufctx_reset()".
Also, not all of my recordings were OK. 2 of them appeared to record (with their file sizes showing on Watch Recordings), but the file can not be found.