Opened 3 years ago
Last modified 22 months ago
#63650 closed defect
Regression in glib2 after update to 2.62 version with qemu tap-bridge networking — at Version 1
| Reported by: | andriytk (Andriy Tkachuk) | Owned by: | |
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| Priority: | Normal | Milestone: | |
| Component: | ports | Version: | 2.7.1 |
| Keywords: | Cc: | ||
| Port: | glib2 |
Description (last modified by andriytk (Andriy Tkachuk))
After recent update from glib2 2.58.3_1 to 2.62.6_2 - QEMU tap-bridge networking stopped working: DHCP requests and replies from guest VM are seen on bridge0 interface, but on tap0 interface there are no replies (only the requests).
The problem was reported also here - https://forum.osdev.org/viewtopic.php?f=1&t=39828.
Tried with qemu-6.1 and 5.2 versions: in both cases it works fine with glib2 @2.58.3_1 (plus required libffi @3.3_1), and fails with glib2 @2.62.6_2 (plus required libffi @3.4.2_2).
As suggested at https://forum.osdev.org/viewtopic.php?p=316408&sid=427623ba50fe49f3c5267a45f83fb1da#p316408 the problem might be related to polling the device.
Also, I noticed that qemu process always consumes 100% CPU even when the quest VM is idle. (Which supports the idea about some problem with polling the device.) Again, this is not observed with the previous glibc2 version 2.58.3_1.
See more details here on how to reproduce the problem - https://gist.github.com/andriytk/bd3def8c30cbd474490280436c779027.
Change History (1)
comment:1 Changed 3 years ago by andriytk (Andriy Tkachuk)
| Description: | modified (diff) |
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