[Bug 212841] getting panic during mps reinitialization.

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=212841

--- Comment #10 from prateek sethi <prateekrootkey at gmail.com> ---
(In reply to Stephen McConnell from comment #9)

Hi Stephen,

I could not reproduce this issue now. system got panic after the mps reinit got
triggered. The following are the only logs I could find (before and after the
crash). 

Apr 27 13:34:51 Node1 kernel: mps0: Reinitializing controller
Apr 27 14:52:21 Node1 syslogd: kernel boot file is /boot/kernel/kernel
Apr 27 14:52:21 Node1 savecore: reboot after panic: mps_iocfacts_allocate
failed to get IOC Facts with error 6

I got the message "mps0: Doorbell failed to activate" from the core analysis,
which will help to find exact point of the issue. Hope these will be helpful
for the further debugging. 

Would you please mind throwing some light on the timing restrictions, that you
mentioned, to be followed when resetting the controller?

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