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Bug#939697: Confirming bug 939697 on HP laptop.



Hello!

I am just replying to confirm the bug affecting my machine.

It's visible that the syslogs are flooded with similar errors from
kernel when I do `journalctl -xef`. Here's a snippet:

okt 21 20:45:56 * kernel: b44 0000:02:0e.0: swiotlb buffer is full (sz:
66 bytes), total 0 (slots), used 0 (slots)
okt 21 20:45:56 * kernel: b44 0000:02:0e.0: swiotlb buffer is full (sz:
179 bytes), total 0 (slots), used 0 (slots)
okt 21 20:45:56 * kernel: b44 0000:02:0e.0: swiotlb buffer is full (sz:
609 bytes), total 0 (slots), used 0 (slots)

I have an HP Compaq nx7400 laptop with Intel(R) Core(TM)2 CPU T5600 @
1.83GHz and 4GB of RAM and am running Ubuntu with what seems to be the
affected version:

Linux * 5.3.0-59-generic #53~18.04.1-Ubuntu SMP Thu Jun 4 14:58:26 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux

I am experiencing some minor hiccups and freezes when using the
computer but I am not sure whether this is the direct cause. Sometimes,
under heavy load, my computer freezes and can only be rebooted from the
magic Alt+SysRq+B sequence. Before that, I can only see systemd-
journald pushing load average to 40 on a 2 core machine, but the logs
are never saved because the whole system hangs.

The ethernet card also matches the description, seeing from the PCI
slot number; it's probably the cause of the issue, however, browsing
the Internet works:

02:0e.0 Ethernet controller: Broadcom Inc. and subsidiaries BCM4401-B0
100Base-TX (rev 02)

I can provide more logs - feel free to contact me.

Regards.

-- 
Anton Luka Šijanec <anton@sijanec.eu> (mail, xmpp & sip)
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