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Description of problem: After switch to i586 libraries to analyse the cause of various crashes of firefox and other applications on a VIA C3 system, after installation of new kernels init of ramdisk segfaults. Version-Release number of selected component (if applicable): mkinitrd-6.0.19-4.fc8 How reproducible: Always now. Actual results: Expected results: init of ramdisk segfaults Additional info: I've tracked down the problem that ld-2.7.so and libdl-2.7.so are causing the problem. I can reproduce this now using an extracted initrd: # chroot /tmp/initrd-2.6.24.3-22.fc8 /bin/nash Segmentation fault strace tells: set_thread_area({entry_number:-1 -> 6, base_addr:0xb7f12710, limit:1048575, seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, seg_not_present:0, useable:1}) = 0 mprotect(0x5ba000, 8192, PROT_READ) = 0 mprotect(0x456000, 4096, PROT_READ) = 0 mprotect(0x24d000, 4096, PROT_READ) = 0 mprotect(0x246000, 4096, PROT_READ) = 0 mprotect(0x12b000, 4096, PROT_READ) = 0 munmap(0xb7f18000, 1672) = 0 --- SIGSEGV (Segmentation fault) @ 0 (0) --- +++ killed by SIGSEGV +++ ltrace: chdir("/") = 0 execvp(0xbfa29a6d, 0xbfa2937c, 0x804ab52, 0, 0 <unfinished ...> --- SIGSEGV (Segmentation fault) --- +++ killed by SIGSEGV +++ After exchanging the mentionend 2 libraries with the ones of an initrd built with i686 libraries, segfault is gone. But it's strange that installed /sbin/nash has no problems on this systems.
> After switch to i586 libraries BTW, if you side-graded from glibc.i686 to glibc.i586 then it might have leftover /lib/i686/nosegneg which gets into the initrd image causing problems. Use rpm -qf to verify that stuff in there are no longer owned by any package and erase them manually, then rum mkinitrd again. Does this help?
Yes, this helps, thank you very much for this hint. Is this a bug or a feature?
Hmm... I suppose we could assign this as an rpm bug. It really shouldn't be doing this.
Reproducer please... 1) I fail to see any i586 glibc packages in Fedora, do you actually mean glibc.i386? 2) Which exact command(s) were used for downgrading (or well, side-grading) the package(s)?
1) yes, glibc.i386 2) history shows me: 184 rpm -Uhv --force glibc-2.7-2.i386.rpm 185 rpm -Uhv --force glibc-common-2.7-2.i386.rpm
BTW the deal here is that since it doesn't count as an upgrade (as evr is the same in both), there's no erase involved. So once you've forced the install of a different arch, same nevra, you have too partially mixed glibc versions installed (see 'rpm -q glibc'). To clean it up after --force, you need to remove the other package manually (ie 'rpm -e glibc.i686') to get rid of the "leftover" files. And yes, rpm could be more intelligent about it - arch and evr are checked but this case kinda falls through the cracks.
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