** Description changed: + SRU Justification + + Justification: by default the perf command will not work correctly on + any flavour which contains a - in its name + + Impact: unable to use the perf command to debug applications when using + generic-paeetc + + Fix Description: change flavour removal to work with all flavours + through use of the known shape version number + + Patch: http://kernel.ubuntu.com/git?p=ubuntu/ubuntu- + lucid.git;a=commit;h=6ec3efb32496eafa8be998507d26f7ffbe0747c4 + + Risks: low, this only changes the perf wrapper which has been tested + with all known flavours + + TEST CASE: attempt to use perf on a generic-pae install note it fails, + install patch, note it now works as expected + + === + Binary package hint: linux-tools-common linux-tools-common contains a small redirection-script (/usr/bin/perf), for dispatching to the perf-version corresponding to the running kernel. This script uses basically ${`uname -r`%-*} to figure the running kernel version, where %-* strips the last dash-delimited component of the kernel name. This breaks for -generic-pae. Examples of uname "-r": 2.6.32-19-generic # Works today 2.6.32-19-generic-pae # Breaks, since the TWO last components needs to be stripped. A proposed solution could be to instead use "%%-[a-z-]*", which would remove ALL trailing letters, and dashes, up to the last digit in the string (the package-release-number). However, since I don't know kernel-release names for other architectures, it needs to be verified first. Suggested new perf, change only on line 3 ---------------- #!/bin/bash version=`uname -r` version=${version%%-[a-z-]*} exec "perf_$version" "$@"
-- perf doesn't work on -pae-kernels [patch proposal] https://bugs.launchpad.net/bugs/555130 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
