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Feature #22484

prepare for kernel upgrade

Added by Ron Rechenmacher 7 months ago. Updated 7 months ago.

Status:
Resolved
Priority:
Normal
Assignee:
-
Start date:
05/01/2019
Due date:
% Done:

0%

Estimated time:
Duration:

Description

Ryan and Lorenzo are running CentOS 7 with a 4.20.10 kernel.
The kernel timer API has changed. I haven't got the new code yet, but have #if LINUX_VERSION_CODE < KERNEL_VERSION(4, 14, 0)
to start the change -- ie. should still work fine with SL7

History

#1 Updated by Ron Rechenmacher 7 months ago

The stack overflow article talks about this, however, the mu2e code does not seem to follow the pattern for the old
timer in the article.
https://stackoverflow.com/questions/53839625/adaptation-from-old-init-timer-to-new-timer-setup

#2 Updated by Eric Flumerfelt 7 months ago

  • Status changed from New to Resolved

I'm going to mark this resolved, but it needs to be tested at some point, possibly with some additional TRACEs to ensure that the poll mechanism is working correctly (and that we don't fall back so an interrupt-only mode or something).

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