Bug 1280068
| Summary: | Build docker with DWARF | |||
|---|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | James W. Mills <jamills> | |
| Component: | docker | Assignee: | Lokesh Mandvekar <lsm5> | |
| Status: | CLOSED ERRATA | QA Contact: | atomic-bugs <atomic-bugs> | |
| Severity: | high | Docs Contact: | Yoana Ruseva <yruseva> | |
| Priority: | high | |||
| Version: | 7.2 | CC: | ajia, cevich, lfriedma, lsm5, tpoitras, uobergfe, yruseva | |
| Target Milestone: | rc | Keywords: | Extras | |
| Target Release: | 7.2 | |||
| Hardware: | x86_64 | |||
| OS: | Linux | |||
| Whiteboard: | ||||
| Fixed In Version: | docker-1.8.2-9.el7 | Doc Type: | Release Note | |
| Doc Text: |
docker now supports the DWARF debug symbols
The DWARF debug symbols are now included in the docker binaries. Previously, without the DWARF info, the ability to analyze Docker core files was very limited. This update makes debugging docker significantly easier.
Additionally, DWARF is now also supported by the `kubernetes`, `etcd` and `flannel` packages.
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Story Points: | --- | |
| Clone Of: | ||||
| : | 1280497 (view as bug list) | Environment: | ||
| Last Closed: | 2015-12-08 15:36:34 UTC | Type: | Bug | |
| Regression: | --- | Mount Type: | --- | |
| Documentation: | --- | CRM: | ||
| Verified Versions: | Category: | --- | ||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | ||
| Cloudforms Team: | --- | Target Upstream Version: | ||
| Embargoed: | ||||
| Bug Depends On: | ||||
| Bug Blocks: | 1186913, 1271801, 1280497, 1287902 | |||
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Description
James W. Mills
2015-11-10 21:21:32 UTC
To run debuginfo-install docker and sqlite then use gdb attach PID of docker and generate a core file for gdb debugging, the result as follows. # gdb attach `pidof docker` <slice> runtime.futex () at /usr/lib/golang/src/runtime/sys_linux_amd64.s:278 278 MOVL AX, ret+40(FP) Missing separate debuginfos, use: debuginfo-install docker-1.8.2-10.el7.x86_64 (gdb) generate-core-file warning: target file /proc/8783/cmdline contained unexpected null characters Saved corefile core.8783 (gdb) detach Detaching from program: /usr/bin/docker, process 8783 (gdb) quit </slice> # gdb /usr/bin/docker core.8783 <slice> Core was generated by `/usr/bin/docker'. #0 runtime.futex () at /usr/lib/golang/src/runtime/sys_linux_amd64.s:278 278 MOVL AX, ret+40(FP) Missing separate debuginfos, use: debuginfo-install docker-1.8.2-10.el7.x86_64 (gdb) bt #0 runtime.futex () at /usr/lib/golang/src/runtime/sys_linux_amd64.s:278 #1 0x000000000043c9c6 in runtime.futexsleep () at /usr/lib/golang/src/runtime/os_linux.c:55 #2 0x00000000004199e4 in runtime.notetsleep_internal (n=0x1779320 <runtime.sched+128>, ns=60000000000, ~r2=96) at /usr/lib/golang/src/runtime/lock_futex.go:170 #3 0x0000000000419af7 in runtime.notetsleep (n=0x1779320 <runtime.sched+128>, ns=60000000000, ~r2=true) at /usr/lib/golang/src/runtime/lock_futex.go:190 #4 0x00000000004442de in sysmon () at /usr/lib/golang/src/runtime/proc.c:2899 #5 0x000000000043f6b1 in mstart () at /usr/lib/golang/src/runtime/proc.c:859 #6 0x000000000043f5c4 in runtime.mstart () at /usr/lib/golang/src/runtime/proc.c:836 #7 0x00000000004044c4 in crosscall_amd64 () at /usr/lib/golang/src/runtime/cgo/gcc_amd64.S:35 #8 0x0000000000000000 in ?? () </slice> NOTES: it still shows "Missing separate debuginfos, use: debuginfo-install docker-1.8.2-10.el7.x86_64", but in fact, No debuginfo packages available to install. @Lokesh, is it enough testing for you? if so, I will close the bug as VERIFIED status. Anyone know if we have QE/CI Automation in place to test for this in docker builds? If so, then I'll delete https://trello.com/c/R11qqosC :D Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://rhn.redhat.com/errata/RHBA-2015-2554.html |