On 11/25/23 07:08, Petr Cvek wrote:
ERROR:../accel/tcg/cpu-exec.c:546:cpu_exec_longjmp_cleanup: assertion failed:
(cpu == current_cpu)
Bail out! ERROR:../accel/tcg/cpu-exec.c:546:cpu_exec_longjmp_cleanup: assertion
failed: (cpu == current_cpu)
#
The code fails either with or without -singlestep, the command line:
/usr/bin/qemu-x86_64 -L /opt/x86_64 -strace -singlestep /opt/x86_64/alarm.bin
Source code of QEMU 8.1.1 was modified with patch "[PATCH] qemu/timer: Don't use
RDTSC on i486" [1],
with added few ioctls (not relevant) and cpu_exec_longjmp_cleanup() now prints
current pointers of
cpu and current_cpu (line "0x48874a != 0x3c69e10").
If you try this again with 8.2-rc2, you should not see an assertion failure.
You should see instead
QEMU internal SIGILL {code=ILLOPC, addr=0x12345678}
which I think more accurately summarizes the situation of attempting RDTSC on hardware
that does not support it.
r~
