Re: [PATCH v4 5/7] Watchdog: introduce ARM SBSA watchdog driver

On 11 June 2015 at 11:45, Timur Tabi [off-list ref] wrote:

Fu Wei wrote:

quoted

Could you suggest a good way to use WS0, so we can follow SBSA spec?

To avoid the timeout/2 problem, WS0 calls panic, which is the "real"
timeout/reset.  WS1 is then a "backup" that is ignored by the driver. That
is, the driver doesn't do anything with WS1 and it doesn't tell the kernel
about WS1.

could you suggestion :
(1) how to config the time from WS0 to WS1 without touching timeout.
(2) if we don't config the time from WS0 to WS1, what is the better
time for ALL server and ALL situation

I know you don't like the idea of WS1 as a backup timeout, but this is one
way to solve the problem.

It is not "I don't like"
WS1 is not a backup in SBSA spec. Page 21 ：
"The initial signal is typically wired to an interrupt and alerts the system. "

If this is the backup, it should say "reset the system"

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Best regards,

Fu Wei
Software Engineer
Red Hat Software (Beijing) Co.,Ltd.Shanghai Branch
Ph: +86 21 61221326(direct)
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