Feature changed by: Christopher Yeleighton (yecril71pl) Feature #313173, revision 2 Title: Better GUI for ENABLE_SYSRQ openSUSE Distribution: Unconfirmed Priority Requester: Desirable Requested by: Christopher Yeleighton (yecril71pl) Partner organization: openSUSE.org Description: Currently, YaST2 allows to specify a number for sysconfig kernel ENABLE_SYSRQ. It should provide check boxes for individual flags - instead. In the mean time, The following script will unscramble the - current setting: let R="$(</proc/sys/kernel/sysrq)" if let R==1 then - echo all else for K in logging keyboard dumps sync remount signalling - reboot nicing do let '(R>>=1)&1' && echo $K done fi The following code - will print the default setting: + instead. + In the mean time, The following script will unscramble the current + setting: + let R="$(</proc/sys/kernel/sysrq)" + if let R==1 + then echo all + else for K in logging keyboard dumps sync remount signalling reboot + nicing + do let '(R>>=1)&1' && echo $K + done + fi + The following code will print the default setting: let L=2 'K=L<<1' 'D=K<<1' 'C=D<<1' 'M=C<<1' 'G=M<<1' 'B=G<<1' 'N=B<<1' - 'R=C|M|B' echo $R + 'R=C|M|B' + echo $R Use Case: The operator observes that the system becomes unresponsive because a process (such as gdb, which can easily slip out of control) is using too much RAM. The X server is not responding because of that. The operator wants to configure the kernel so that it can use the keyboard shortcut [Alt SysRq F] to kill the memory hog. Business case (Partner benefit): openSUSE.org: Because manual scrambling and unscrambling is inconvenient. Manual killing of excessive processes is easier than restarting the whole system by means of [Ctrl Alt F1] [Ctrl Alt Delete], and may save the operator some data loss. -- openSUSE Feature: https://features.opensuse.org/313173