----- Original Message ----- > This update introduces a support of 32-bit user-space tasks on X86_64, > and fixes a number of bugs. > > This time RHEL5.6 has newly been tested. Support range for 32-bit > tasks on X86_64 is just the same as for ordinary 64-bit tasks. In > summary, the current support range is as follows: > > Architecture: X86_64 including 32-bit tasks and X86 > Versions: RHEL4.8, RHEL5.5, RHEL5.6, RHEL6.0 and vanilla 2.6.36. > > Note: there is the issue that register restoration for callee-saved > registers doesn't work well on RHEL6.0 and recent kernels that are > built with recent tools. I'm going to address this issue but it's > still under investigation. I'd stress here that the register values > restored is enough for back tracing. > > Also any comment, suggestion and report is welcome. The extensions page has been updated to reference the files in this package: http://people.redhat.com/anderson/extensions.html Thanks, Dave > ChangeLog: > > - Support 32-bit user-space tasks on X86_64. Created are 32-bit ELF > core files containing the same kinds of note information as on X86. > (d.hatayama@xxxxxxxxxxxxxx) > > - Fix a bug in calculation of detecting whether NT_IOPERM is available > or not. Without this fix, NT_IOPERM is never included in a core > file. > (d.hatayama@xxxxxxxxxxxxxx) > > - Fix a bug in a processing of writing note information. Without this > patch, a length of ELF note section recorded in PT_NOTE program > header entry could be different from an actual size of written data, > and tools such as gdb and binutils recognize it as an invalid ELF > file. > (d.hatayama@xxxxxxxxxxxxxx) > > - Fix a bug in resuming an original task context. Without this patch, > gcore fails to let crash's state resume back to the original context > when specifying a different task context as a target from a current > one. > (d.hatayama@xxxxxxxxxxxxxx) > > - Fix a bug in getting register values from > NT_PRSTATUS. DISKDUMP/NETDUMP saves register values for a panic task > only, while KDUMP saves NT_PRSTATUS for all active tasks. Without > this patch, dumping processing fails if a non-panic active task is > specified and analyzed kernel dumpfile contains NT_PRSTATUS for > panic task only. Although best way is to check the number of > NT_PRSTATUS contained in a given kernel dumpfile, this fix > temporarilly only checks in what formats the analying kernel dump > is. > (d.hatayama@xxxxxxxxxxxxxx) > > - Fix a bug in restoring segment register DS. Without this patch, the > value of DS segment register in NT_PRSTATUS is always 0 if a dump > target task is a sleep task. > (d.hatayama@xxxxxxxxxxxxxx) > > - Fix a bug in restoring segment registers. Field size for segment > registers in kernel is 2 bytes, while field size in note information > is 8 bytes. Without this patch, high 6-bytes has an arbitrary value > in note information. Low 2-bytes remains the same. > (d.hatayama@xxxxxxxxxxxxxx) > > Thanks. > HATAYAMA Daisuke > > -- > Crash-utility mailing list > Crash-utility@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/crash-utility -- Crash-utility mailing list Crash-utility@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/crash-utility
