Hi Sergio,
Thanks for the upload!
The bug and fix sound good and relatively simple to verify.
The SRU bug template is still missing Test Plan / Regression Potential,
so I'll mark it as Incomplete for the time being (I see it may be coming
soon, per "TBD").
While looking at the Björn's mention of the test case in RH BZ, that uses the
`rdtsc.flat` kernel, which I couldn't find elsewhere. Do you know about it?
It's apparently a `rdtsc`/print loop we can replicate, if needed.
If I may, I'd suggest to test this in 3 ways:
1) unit test, with such rdtsc/print loop (and confirm the tsc value decreases
after system_reset)
2) functional test, booting Windows (e.g., downloaded from MSFT Evaluation
Center) and changing TSC manually to a problematic value (> 2^54) before reset,
with the QEMU monitor or GDB, if possible?
3) regression test, booting Ubuntu kernel/initrd pairs (installer's should be
enough) from supported releases, and checking they boot/reach a prompt.
I realize that looks like too much for a simple fix, but this is QEMU on amd64.
I'd be quite willing to help with that if needed. :)
Thanks again!
** Changed in: qemu (Ubuntu Jammy)
Status: Triaged => Incomplete
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https://bugs.launchpad.net/bugs/2064914
Title:
Windows guest hangs after reboot from the guest OS
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