CC elfutils-devel, this appears to be a regression. I'm top-posting my own findings, but I'll leave the kernel report below... With elfutils-0.162, it appears that "strip" doesn't reduce the file size when operating in-place (without -o). This isn't particular to funny kernel ELF -- I reproduced it on a local stap binary. My full stap is 31MB. With strip -o, I get a new 2.5MB file. With strip in-place, stap remains 31MB even though the ELF section data does indicate all the DWARF sections are gone. I bisected it to commit 77482c4bf63a. https://git.fedorahosted.org/cgit/elfutils.git/commit/?id=77482c4bf63a92166191e0b8531e9781f6fddbf3 if (elf->parent == NULL && (elf->maximum_size == ~((size_t) 0) || (size_t) size > elf->maximum_size) - && unlikely (ftruncate (elf->fildes, size) != 0)) + && unlikely (posix_fallocate (elf->fildes, 0, size) != 0)) In elf_begin() w/ ELF_C_RDWR, we get maximum_size == ~0, but now this posix_fallocate can only increase the file size. The later part of write_file() to reduce the size is only called for maximum_size != ~0. On 06/15/2015 11:32 AM, Josh Boyer wrote: > On Mon, Jun 15, 2015 at 1:45 PM, drago01 <drago01@xxxxxxxxx> wrote: >> On Mon, Jun 15, 2015 at 7:38 PM, poma <pomidorabelisima@xxxxxxxxx> wrote: >>> >>> # du -hs /lib/modules/4.0.5-300.fc22.i686/ | awk '{print $1}' >>> 42M >>> >>> kernel-modules-4.0.5-300.fc22.i686.rpm ... 17M >>> >>> http://dl.fedoraproject.org/pub/fedora/linux/updates/testing/22/i386/k/ >>> ~~~~~~~~~~~ ~~~~~~~~~~ ~~~~~~~~~ ~~~~~~~~ ~~~~~~~ ~~~~~~ ~~~~~ ~~~~ ~~~ >>> >>> # du -hs /lib/modules/4.1.0-0.rc7.git0.1.fc23.x86_64/ | awk '{print $1}' >>> 53M >>> >>> kernel-modules-4.1.0-0.rc7.git0.1.fc23.x86_64.rpm ... 18M >>> >>> https://kojipkgs.fedoraproject.org/packages/kernel/4.1.0/0.rc7.git0.1.fc23/x86_64/ >>> ~~~~~~~~~~~ ~~~~~~~~~~ ~~~~~~~~~ ~~~~~~~~ ~~~~~~~ ~~~~~~ ~~~~~ ~~~~ ~~~ ~~ ~ ~~ ~~~ >>> >>> # du -hs /lib/modules/4.1.0-0.rc7.git1.1.fc23.x86_64/ | awk '{print $1}' >>> 439M >>> >>> kernel-modules-4.1.0-0.rc7.git1.1.fc23.x86_64.rpm ... 218M >>> >>> http://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/x86_64/os/Packages/k/ >>> ~~~~~~~~~~~ ~~~~~~~~~~ ~~~~~~~~~ ~~~~~~~~ ~~~~~~~ ~~~~~~ ~~~~~ ~~~~ ~~~ ~~ ~ ~~ ~~~ ~~~~ >>> >>> # du -hs /lib/modules/4.1.0-0.rc8.git0.1.fc23.x86_64/ | awk '{print $1}' >>> 438M >>> >>> kernel-modules-4.1.0-0.rc8.git0.1.fc23.x86_64.rpm ... 218M >>> >>> https://kojipkgs.fedoraproject.org/work/tasks/9420/10059420/ >>> ~~~~~~~~~~~ ~~~~~~~~~~ ~~~~~~~~~ ~~~~~~~~ ~~~~~~~ ~~~~~~ ~~~~~ >>> >>> >>> 218 ÷ 18 = 12.111111111 >>> 439 ÷ 53 = 8.283018868 >>> >>>> = 4.1.0-0.rc7.git1.1 cca. 10 x sizeof >> >> Those are debug builds. > > They aren't actually. > > It looks like something in the buildroot stopped stripping the kernel > modules between rc7.git0 and rc7.git1. Both elf-utils and binutils > changed, so maybe something in there. The same SRPM build on F22 has > the smaller size. > > I haven't looked into it more than that. If someone wants to poke at > this and figure out what broke, that would be excellent. From a > kernel package perspective, there isn't anything that we did that > should cause this change in behavior that I'm aware of. > > josh > _______________________________________________ > kernel mailing list > kernel@xxxxxxxxxxxxxxxxxxxxxxx > https://admin.fedoraproject.org/mailman/listinfo/kernel > _______________________________________________ kernel mailing list kernel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/kernel
