This bug has been copied from bug #572605 and has been proposed
to be backported to 5.5 z-stream (EUS).
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.
Technical note added. If any revisions are required, please edit the "Technical Notes" field
accordingly. All revisions will be proofread by the Engineering Content Services team.
The "bt" subcommand of crash could not resolve the stack trace when an x86 NMI-interrupted task had just entered the kernel from user-space, but had not yet called the requested system call function. The same issue occurred when the resumption EIP address value of a newly forked x86 task was set to the "ret_from_fork" entry point by copy_thread(). This issue has been resolved in both cases.