local-intr-msg-clobber

local-intr-msg-clobber

Force putting save_data on the stack rather than in SSE register

The signal management does not yet properly save SSE state, so that save_data
would get overwritten by signal handlers, notably leading to `` shell
replacement getting empty content because then the io_read RPC retry gets an
MIG_BAD_ARGUMENTS error.

XXX: This is only temporary to fix the common shll replacement issue, and is
waiting for proper SSE state restoration.

Gbp-Pq: Topic hurd-i386
Gbp-Pq: Name local-intr-msg-clobber.diff