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From: | Cédric Le Goater |
Subject: | Re: [PATCH 00/15] ppc/ppc405: decade cleanup |
Date: | Sat, 18 Dec 2021 10:33:38 +0100 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.3.0 |
Don't know if this is the reason of our problems but I think there is something to investigate around timer interrupts: / # cat /proc/interrupts CPU0 16: 68 UIC 1 Level serial LOC: 0 Local timer interrupts for timer event device LOC: 0 Local timer interrupts for others SPU: 0 Spurious interrupts PMI: 0 Performance monitoring interrupts MCE: 0 Machine check exceptions Any idea what the problem can be ? How does QEMU generates timer interrupts ?
The ppc405 timers were trashed by ddd1055b07fd ("PPC: booke timers"). I guess at the time, in 2011, there were no possible ways to test regressions :/ This is addictive. I will look into it, I hope it's only a question of adding back the TSR and TCR store helpers. Thanks, C.
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