Hi,
I am currently running a 32-bit ARM full-system simulation. After I boot up
the OS on the simulated system, I take a checkpoint.
This worked fine before, but after I made some changes to the DRAM
controller code, the checkpoint stalls and I get this error message in the
simulated console:
INFO: rcu_preempt detected stalls on CPUs/tasks: { 2} (detected by 0,
t=2102 jiffies, g=4294967009, c=4294967008, q=255)
(A huge log of CPU backtraces follow this error message.)
Has anyone run into similar issues before? I am a bit lost on where to
start debugging.
Thanks,
Jiwon
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