Bug 143350
| Summary: | ptrace horked in 2.6.9-1.1047_FC4smp | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Ulrich Drepper <drepper> |
| Component: | kernel | Assignee: | Roland McGrath <roland> |
| Status: | CLOSED RAWHIDE | QA Contact: | Brian Brock <bbrock> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | rawhide | CC: | davej, mgb, wtogami |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2005-01-04 21:00:01 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
This happens on x86 as well. So not x86-64 specific. This is ok in the upstream kernel and in the RHEL4 kernel. So it's just some sort of merging snafu or whatnot in the FC4 kernel. I didn't see anything obvious. I'm not going to worry about this since I figure bleeding edge FC should be rebasing to 2.6.10(rc*) soon enough anyway. This got corrected a bit but in 2.6.9-1.1049_FC4 but not that much.
'strace echo' just prints, at least on x86_64,
execve("/bin/echo", ["echo"], [/* 24 vars */]) = 0
and returns. I would expect to see some 38 lines of output.
theres a 2.6.10 based update in rawhide now, can you test that please ? Seems to work again in 2.6.10-based kernels. I've only tested x86 so far, but since the symptoms were identical this should apply to other archs as well. |
Description of problem: ptrace() seems to be completely broken in 2.6.9-1.1047_FC4smp. $ strace /bin/echo execve("/bin/echo", ["/bin/echo"], [/* 39 vars */]) = 0 ... and then it's stuck. The process has to be aborted. gdb shows the same behavior. Version-Release number of selected component (if applicable): 2.6.9-1.1047_FC4smp How reproducible: I haven't rebooted and don't know whether this has been the case ever since the last boot, but it surely is 100% reproducible now. Steps to Reproduce: 1.boot said kernel 2.strace /bin/echo 3. Actual results: Nothing except the fake execve message Expected results: trace Additional info: strace-4.5.8-1.x86_64 is used, but this shouldn't matter since gdb is also affected and both programs worked before.