• Robin Holt's avatar
    SGI-XP: handle non-fatal traps · 891348ca
    Robin Holt authored
    We found a user code which was raising a divide-by-zero trap.  That trap
    would lead to XPC connections between system-partitions being torn down
    due to the die_chain notifier callouts it received.
    
    This also revealed a different issue where multiple callers into
    xpc_die_deactivate() would all attempt to do the disconnect in parallel
    which would sometimes lock up but often overwhelm the console on very
    large machines as each would print at least one line of output at the
    end of the deactivate.
    
    I reviewed all the users of the die_chain notifier and changed the code
    to ignore the notifier callouts for reasons which will not actually lead
    to a system to continue on to call die().
    
    [akpm@linux-foundation.org: fix ia64]
    Signed-off-by: default avatarRobin Holt <holt@sgi.com>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Cc: Ingo Molnar <mingo@elte.hu>
    Cc: <stable@vger.kernel.org>
    Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    891348ca
Name
Last commit
Last update
..
Makefile Loading commit data...
xp.h Loading commit data...
xp_main.c Loading commit data...
xp_nofault.S Loading commit data...
xp_sn2.c Loading commit data...
xp_uv.c Loading commit data...
xpc.h Loading commit data...
xpc_channel.c Loading commit data...
xpc_main.c Loading commit data...
xpc_partition.c Loading commit data...
xpc_sn2.c Loading commit data...
xpc_uv.c Loading commit data...
xpnet.c Loading commit data...