Pete/Piet Delaney wrote: > We are getting a problem with VMware where kernel text is the schedler > is getting wacked with four null bytes into the code. Thought I'd use > the current linux-2.6-kgdb.git tree and possible the CONFIG_DEBUG_RODATA > patch to make kernel text readonly: > > https://www.x86-64.org/pipermail/patches/2007-March/003666.html > > I thought the kernel text was RO and gdb had to disable it to > insert a breakpoint. > >
If you are going to make all the kernel text RO, then you are going to have to add some code to the kgdb write memory so as to unprotect a given page or all the breakpoint writes are going to fail. Alternatively you can use HW breakpoints. But, I have no idea if your VM Ware simulated HW emulate HW breakpoint registers or not. Jason. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
