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Hello, Sorry to interrupt you. I have a question regarding the vdso option in the kernel boot parameters. AFAIK if vdso is turned on we would see the following virtual address mapping in the /proc/<>/maps file [correct me if I'am wrong] 00:00 0 ffffe000-fffff000 ---p 00000000 00:00 0 so turning off the vdso option should not have this segment mapped into the virtual memory of the process and hence should not have an entry in /proc/<>/maps. For this RHEL machine I see that the vdso option is 0 and still we see a virtual address mapping of the vdso segment. Kernel : 2.6.9-11.EL vdso status : Disabled /proc/sys/kernel/vdso is 0 so is this /proc entry broken in this version of the kernel ?? PS: I could'nt really figure out in which mailing list we need to post this, do redhat (RHEL) has a seperate mailing list?? Your kind inputs in this context are greatly appreciated. Regards, Vamsi kundeti _______________________________________________ Redhat-devel-list mailing list Redhat-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/redhat-devel-list