Questions tagged [deadlock]

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Can perf events detect deadlock in C++ codes (Linux)?

I am using perf tools to get some performance counters. I would like to know if it is possible to detect deadlock by checking performance counters included in perf events.
2
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2answers
100 views

Bash: join pipes without deadlock

I want to list a bunch of filenames via find, pipe them through a utility (let's call this util) which outputs a new name for each input name, and then rename each file from the old name to the new. ...
2
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1answer
3k views

Compiled kernel 4.19 will not boot: “Kernel panic not syncing : System is deadlocked on memory”

I am compiling kernel 4.19 on Ubuntu 14.04 because I have a assignment to add a system call, but when I try to boot this kernel there's a error: Kernel panic - not syncing: System is deadlocked on ...
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0answers
35 views

How to view pending SCSI requests?

If the PC sends a request to read a sector on an optical disc, which turns out to be unreadable, the drive deadlocks the program into responselessness and motionlessness, until it returns the sector ...
2
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0answers
676 views

Why is Firefox stuck, and how might I get it unstuck?

Firefox is hung. Usually I kill it with -1, -9 or -15, but this time, dang it, I want to find out why. I have an hour or so to waste on this, and seek education above actually solving the problem. ...
2
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0answers
79 views

What does Linux wait for when switches from Xorg to text console?

Sometimes my Xorg hangs and locks the console dead, with a “stale frame” of GUI on the monitor. Hardware and driver-related problems are likely (see here for description of particular configuration), ...
1
vote
1answer
916 views

Deadlock on read/wait [closed]

My process deadlocks. master looks like this: p=Popen(cmd, stdin=PIPE, stdout=PIPE) for ....: # a few million p.stdin.write(...) p.stdin.close() out = p.stdout.read() p.stdout.close() exitcode = ...
11
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2answers
6k views

Solving Ethernet watchdog timer deadlocks

I have a debian linux box (Debian Squeeze) that deadlocks every few hours if I run a python script that sniffs an interface... The stack trace is attached to the bottom of this question. Essentially,...
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3answers
5k views

System freezes when browsing internet

About a week ago my system began to freeze (deadlock, only manual shutdown with laptop button helped) from time to time. The frequency of deadlock is increasing. Today it was about 10 deadlocks with ...