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action #17092

closed

100% cpu usage in virtio_screen.pm function read_until

Added by nadvornik almost 8 years ago. Updated over 7 years ago.

Status:
Resolved
Priority:
High
Assignee:
Category:
Regressions/Crashes
Target version:
Start date:
2017-02-15
Due date:
% Done:

0%

Estimated time:

Description

On my machine isotovideo runs with 100% cpu usage in virtio_screen.pm function read_until.

strace shows that it cycles on this:
read(21, 0x6670db0, 2048) = -1 EAGAIN (Resource temporarily unavailable)

Adding usleep(1000) before the retry on EAGAIN (virtio_screen.pm line 197) helped, but maybe there is a better fix.

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