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assert in qemu under tcg in an smp case
From: |
Ivan Warren |
Subject: |
assert in qemu under tcg in an smp case |
Date: |
Sun, 20 Jun 2021 13:44:50 +0200 |
User-agent: |
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 |
Hello,
I know this is not a sanctioned or supported case but anyways...
I am getting this situation when ipling/booting AIX (7.2 TL5 SP2) in a
virtual SMP environment (8 virtual CPUS) with TCG :
ERROR:../../src/qemu/accel/tcg/tcg-accel-ops-mttcg.c:85:mttcg_cpu_thread_fn:
assertion failed: (cpu->halted)
the asset occurs very late during the boot process.
If I comment out the g_assert at or around line 85 of the offender,
everything works fine (I haven't tried any tests though)
I am having a hard time getting to as how to this occurs (but it's only
on AIX - ppc64le linux works fine), but I am suspecting this is related
is to how the kernel vary offs and vary on logical processors.
PS : I have searched around - and this seems to be a problem that can be
traced from way years back (maybe 3 or 4).
--Ivan
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- assert in qemu under tcg in an smp case,
Ivan Warren <=