`echo c > /proc/sysrq-trigger` fails when console speed is set to 9600 and iptables enabled
Issue
- When console speed is set to 9600 in
grub.conf
andiptables
are enabled,echo c > /proc/sysrq-trigger
run fromssh
session triggers no crash kernel butiptables
logs to console - Issuing
echo c > /proc/sysrq-trigger
only generatesiptabels
output on console but nokdump
is triggered while it works from console - When changing console speed to 115200 baud it works also via
ssh
session - In case
iptables
are disabled it also works with console speed set to 9600
Environment
- Red Hat Enterprise Linux 6.6
- HP ProLiant DL380p Gen8
- P420i with HPSA (Smart Array) firmware rev 6.0
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