Re: [PATCH] x86/iopl: Fake iopl(3) CLI/STI usage
From: Ondrej Zary
Date: Fri Sep 17 2021 - 08:54:23 EST
On Friday 17 September 2021, Thomas Gleixner wrote:
> On Fri, Sep 17 2021 at 13:54, Peter Zijlstra wrote:
> >> [ 14.876824] fixup_iopl_exception: 333 callbacks suppressed
> >> [ 14.876832] traps: hpasmd[360] attempts to use CLI/STI, pretending it's a NOP, ip:80a5356
> >
> > I'd say...
> >
> > Not sure it's really worth it, but something like the below might
> > help.
>
> One entry per task is really good enough. Though that wont help for such
> stuff which is started over and over again....
Seems to fine for this case. hpasmd is running as a daemon.
# dmesg | tail
[ 6.834639] atyfb: fb0: ATY Mach64 frame buffer device on PCI
[ 7.629499] random: crng init done
[ 7.629507] random: 7 urandom warning(s) missed due to ratelimiting
[ 9.737551] floppy0: no floppy controllers found
[ 9.737584] work still pending
[ 9.923185] process 'hp/hp-health/bin/hpasmd' started with executable stack
[ 10.140055] traps: hpasmd[359] attempts to use CLI/STI, pretending it's a NOP, ip:f7d3709b in mem[f7d37000+3000]
[ 15.821726] tg3 0000:03:01.0 enp3s1f0: Link is up at 1000 Mbps, full duplex
[ 15.821753] tg3 0000:03:01.0 enp3s1f0: Flow control is on for TX and on for RX
[ 15.821786] IPv6: ADDRCONF(NETDEV_CHANGE): enp3s1f0: link becomes ready
# hpasmcli -s "show fans"
Fan Location Present Speed of max Redundant Partner Hot-pluggable
--- -------- ------- ----- ------ --------- ------- -------------
#1 PROCESSOR_ZONE Yes NORMAL 22% Yes 2 Yes
#2 PROCESSOR_ZONE Yes NORMAL 22% Yes 1 Yes
#3 I/O_ZONE Yes NORMAL 11% Yes 1 Yes
#4 I/O_ZONE Yes NORMAL 11% Yes 1 Yes
#5 PROCESSOR_ZONE Yes NORMAL 22% Yes 1 Yes
#6 PROCESSOR_ZONE Yes NORMAL 22% Yes 1 Yes
#7 POWERSUPPLY_BAY Yes NORMAL 11% Yes 1 Yes
#8 POWERSUPPLY_BAY Yes NORMAL 11% Yes 1 Yes
--
Ondrej Zary