[Crash-utility] vmcore file size 0 on x86_64

Hi, I am little new in this mailing list. I just wondered if anybody could help me regarding the vmcore file generation. I ran kexec on my x86_64 machine, and the /proc/vmcore file is created with zero size. However, even if I read the /dev/oldmem file, I am only able to read till 16M. I guess I am only able to read till the 'X', where X is crashkernel=Y@X. Moreover, My machine seems to have 32 bit user space and ofcourse, 64 bit kernel space. Appreciate any response. Chandan Kumar ____________________________________________ =====-----=====-----===== Notice: The information contained in this e-mail message and/or attachments to it may contain confidential or privileged information. If you are not the intended recipient, any dissemination, use, review, distribution, printing or copying of the information contained in this e-mail message and/or attachments to it are strictly prohibited. If you have received this communication in error, please notify us by reply e-mail or telephone and immediately and permanently delete the message and any attachments. Thank you