On Thu, 22 Feb 2007, Sean Benoit wrote:
Last fall, while updating a 6.1 Stable kernel to 6.2 Pre-Release, I noted
that the then new kernel caused all our previously functioning Dell
PowerEdge 1750s (dual processor) to freeze on boot at the point in the boot
process where the second processor was being detected. Disabling the second
processor in the BIOS served as a temporary workaround and enabled the
systems to boot successfully.
At that time I submitted a PR via the website and a patch was issued within
a few hours. The patch resolved the problem. I didn't keep that original
correspondence because I assumed that all was well moving forward.
Last weekend I attempted to update the same systems for the first time since
last fall from the patched 6.2 Pre-Release kernel to the new 6.2 Stable
kernel. I was alarmed to see that the EXACT same issue had reappeared. The
symptoms are exactly the same - as is the workaround (disable the second
processor in the BIOS).
I have once again submitted a PR (109267) via the website (details at
http://www.freebsd.org/cgi/query-pr.cgi?pr=109267); however, I have been
advised that I should post the issue to this mailing list instead/prior.
Not sure what to do from here...
Does this relate to PR 103697 which seems to be a similar correspondence:
http://www.freebsd.org/cgi/query-pr.cgi?pr=103697
Are you using the ULE scheduler?
Robert N M Watson
Computer Laboratory
University of Cambridge
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