Hi Jiri,
W dniu 12.08.2020 o 13:45, Jiri Slaby pisze:
On 04. 08. 20, 18:24, Andrzej Pietrasiewicz wrote:
Userland might want to execute e.g. 'w' (show blocked tasks), followed
by 's' (sync), followed by 1000 ms delay and then followed by 'c' (crash)
upon a single magic SysRq. Or one might want to execute the famous "Raising
Elephants Is So Utterly Boring" action. This patch adds a configurable
handler, triggered with 'C', for this exact purpose. The user specifies the
composition of the compound action using syntax similar to getopt, where
each letter corresponds to an individual action and a colon followed by a
number corresponds to a delay of that many milliseconds, e.g.:
ws:1000c
or
r:100eis:1000ub
I think I miss what's that good for, given I can do it one-by-one
without setting such strings anywhere (I usually want to do different
things on different kinds of crashes)?
The "REISUB" action is a common way of handling a bad situation, though,
so having a shortcut for a common way is helpful, yet we are not forcing
this particular action to happen when the 'C' sysrq is invoked and offer
configurability instead.
I addressed the comments you had with regard to the code in a v2 series.
Regards,
Andrzej
