----- Original Message ----- > Hi Dave, > > I found you from https://www.redhat.com/mailman/listinfo/crash-utility. > I was really impressed with your contribution to the crash utility. > I tried subscribing to the crash utility mailing list. But no luck. Sorry about that -- I was on vacation for a couple of weeks until today. You're on the list now. > > I started writing the crash extensions, > I am unable to read the all the members of task_struct and mm_struct structures. > I am trying to read mm->hiwater_vm, the defs.h header file do not have > struct_mm_hiwater_mm variable as a offset_table member. > > Could you please suggest me the ways that I could read all the members of > the task_struct and mm_struct. > Thanks in Advance. > > -- > Thanks & Regards > Rupesh P For structure members that are not in the built-in offset_table, you can just use MEMBER_OFFSET() directly, for example: MEMBER_OFFSET("mm_struct", "hiwater_rss") which returns a long offset value. But be aware that it returns -1 on a failure, so you should check for success/failure before using the return value. The built-in OFFSET() macro verifies that the the pre-initialized offset value read by MEMBER_OFFSET() and stored in the offset_table is not a -1, and if it is, it will generate a FATAL error. In an extension module, it's up to you to do the verification. Dave -- Crash-utility mailing list Crash-utility@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/crash-utility
