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SubjectRe: [PATCH RFC] Watchdog: sbsa_gwdt: Enhance timeout range
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Pratyush Anand wrote:
> Its unique to SBSA because you have very little timeout here. kexec-tools
> upstream does not have any mechanism to handle watchdog timeout. Lets say even
> if we implement a framework there, the best it can do is to ping the watchdog
> again.

Ok, so it's more accurate to say that kexec has a minimum watchdog
timeout requirement. What happens if the system admin sets the timeout
to 5 seconds arbitrarily? The system will reset during kexec, no matter
which hardware is used.

This still sounds like a band-aid to me. We're just assuming that we
need a timeout of at least 20 seconds to support kexec. Frankly, this
still sounds like a problem the kexec developers needs to acknowledge
and deal with.

Still I'm okay with a patch that extends the timeout by programming WCV,
but it has to be commented as a hack specifically to support kexec
because the timeout might be too short. Then Wim can decide whether he
supports such changes.

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Qualcomm Innovation Center, Inc.
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