• David Johnson's avatar
    Move emergency_restart call out of bh in Linux ipod module on aarch64/powerpc64. · 4a801b22
    David Johnson authored
    Calling emergency_restart directly from the softirq/bh ipod icmp handler
    has a history of causing panics prior to the intended shutdown on both
    aarch64 and powerpc64.  The panics didn't inhibit the intended reboot,
    but on OPAL-booted ppc64le, were very noisy, because each "hyperthread"
    cpu attempted a dealloc of the irq handler from within the handler, so
    the console got a noisy stack trace for each thread.
    
    So now if IPOD_QUEUE_RESTART is defined (and it is by default on aarch64
    and powerpc64), we move the call to emergency_restart into a dedicated,
    preallocated workqueue thread, whose sole purpose is to (eventually)
    reboot the machine.  Wasteful, but we don't want to need to initialize
    anything, or use a shared workqueue, if an IPOD is really necessary, at
    IPOD time.
    4a801b22
Name
Last commit
Last update
account Loading commit data...
apache Loading commit data...
apt Loading commit data...
assign Loading commit data...
autoconf Loading commit data...
autofs Loading commit data...
backend Loading commit data...
bugdb Loading commit data...
cdrom Loading commit data...
clientside Loading commit data...
collab Loading commit data...
daikon Loading commit data...
db Loading commit data...
delay Loading commit data...
dhcpd Loading commit data...
discvr Loading commit data...
doc Loading commit data...
event Loading commit data...
firewall Loading commit data...
flash Loading commit data...
fwrules Loading commit data...
hw_config Loading commit data...
hyperviewer Loading commit data...
image-test Loading commit data...
install Loading commit data...
ipod Loading commit data...
mobile Loading commit data...
mote Loading commit data...
named Loading commit data...
node_usage Loading commit data...
ntpd Loading commit data...
os Loading commit data...
patches Loading commit data...
pelab Loading commit data...
protogeni Loading commit data...
pxe Loading commit data...
rc.d Loading commit data...
robots Loading commit data...
rpms Loading commit data...
security Loading commit data...
sensors Loading commit data...
sql Loading commit data...
ssl Loading commit data...
sysadmin Loading commit data...
tbsetup Loading commit data...
testsuite Loading commit data...
tmcd Loading commit data...
tools Loading commit data...
utils Loading commit data...
vis Loading commit data...
wiki Loading commit data...
www Loading commit data...
xmlrpc Loading commit data...
.gitattributes Loading commit data...
.gitignore Loading commit data...
.gitmodules Loading commit data...
.loc-ignore Loading commit data...
AGPL-COPYING Loading commit data...
GNUmakefile.in Loading commit data...
GNUmakerules Loading commit data...
GPL-COPYING Loading commit data...
LGPL-COPYING Loading commit data...
MOVED-TO-WIKI Loading commit data...
Makeconf.in Loading commit data...
README Loading commit data...
TODO Loading commit data...
TODO.plab Loading commit data...
VERSION Loading commit data...
WEBtemplate.in Loading commit data...
config.h.in Loading commit data...
configure Loading commit data...
configure.ac Loading commit data...
defs-amaricq-emulab Loading commit data...
defs-apt Loading commit data...
defs-cloudlab-clemson Loading commit data...
defs-cloudlab-utah Loading commit data...
defs-cloudlab-wisc Loading commit data...
defs-default Loading commit data...
defs-duerig-emulab Loading commit data...
defs-elabinelab Loading commit data...
defs-example Loading commit data...
defs-gtw-apt Loading commit data...
defs-gtw-emulab Loading commit data...
defs-johnsond-emulab Loading commit data...
defs-kwebb-apt Loading commit data...
defs-kwebb-cloudlab Loading commit data...
defs-kwebb-emulab Loading commit data...
defs-mike-emulab Loading commit data...
defs-onelab Loading commit data...
defs-ricci-emulab Loading commit data...
defs-stoller-apt Loading commit data...
defs-stoller-emulab Loading commit data...
defs-stoller-home Loading commit data...
defs-stoller-lbsdb Loading commit data...
defs-uky Loading commit data...
defs-utahclient Loading commit data...
defs-wbsun-emulab Loading commit data...
defs-wide Loading commit data...
pnet-favicon.ico Loading commit data...