*** This bug is a duplicate of bug 1694547 ***
https://bugs.launchpad.net/bugs/1694547
** This bug has been marked a duplicate of bug 1694547
Microcode SW errors since Bios upgraded to 1.4.17 - Dell XPS 13
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Bugs,
Same network controller, so probably the same issue.
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https://bugs.launchpad.net/bugs/1693618
Title:
Microcode SW error detected.
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Take a look at LP: #1694547. Probably same issue?
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https://bugs.launchpad.net/bugs/1693618
Title:
Microcode SW error detected.
To manage notifications about this bug go to:
on kernel 4.12.0-041200rc3-generic #201705282131 the problem exist:
[ 8987.607601] iwlwifi :04:00.0: regular scan timed out
[ 8987.607724] iwlwifi :04:00.0: Microcode SW error detected. Restarting
0x200.
[ 8987.607841] iwlwifi :04:00.0: Start IWL Error Log Dump:
[ 8987.607846]
For kernel 4.12.0-041200rc2-generic, there is no microcode software
error, but I'm not 100% sure that there is no bug in upstream. Instead
of this there is a:
[19539.037240] BUG: scheduling while atomic: irq/323-iwlwifi/493/0x7e00
[19539.037241] Modules linked in: ccm rfcomm option usb_wwan
Did this issue start happening after an update/upgrade? Was there a
prior kernel version where you were not having this particular problem?
Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.12
