On 3/30/21 6:42 AM, Daniel Thompson wrote:
On Mon, Mar 29, 2021 at 03:32:35PM -0400, Waiman Long wrote:
The handling of sysrq keys should normally be done in an user context
except when MAGIC_SYSRQ_SERIAL is set and the magic sequence is typed
in a serial console.
This seems to be a poor
On Mon, Mar 29, 2021 at 03:32:35PM -0400, Waiman Long wrote:
> The handling of sysrq keys should normally be done in an user context
> except when MAGIC_SYSRQ_SERIAL is set and the magic sequence is typed
> in a serial console.
This seems to be a poor summary of the typical calling context for
The handling of sysrq keys should normally be done in an user context
except when MAGIC_SYSRQ_SERIAL is set and the magic sequence is typed
in a serial console.
Currently in print_cpu() of kernel/sched/debug.c, sched_debug_lock is taken
with interrupt disabled for the whole duration of the calls
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