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[Bug libelf/25083] Unexpected hangs at elf32_updatefile.c:518
- From: "mark at klomp dot org" <sourceware-bugzilla at sourceware dot org>
- To: elfutils-devel at sourceware dot org
- Date: Sat, 19 Oct 2019 19:27:05 +0000
- Subject: [Bug libelf/25083] Unexpected hangs at elf32_updatefile.c:518
- Auto-submitted: auto-generated
- References: <bug-25083-10460@http.sourceware.org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=25083
Mark Wielaard <mark at klomp dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2019-10-19
CC| |mark at klomp dot org
Ever confirmed|0 |1
--- Comment #1 from Mark Wielaard <mark at klomp dot org> ---
It doesn't really "hang", but tries to write out an enormous amount of data.
The issue is that both hangxx files have allocated section with a very large
offset:
[ 9] .rela.dyn NOBITS 00000000000015b8 d600000280 00002688 24
A
5 0 8
[26] .bss NOBITS 0000000000212b80 e8ff012b60 00000490 0
WA 0 0 64
When writing out the new file eu-unstrip will dutifully try to place those
sections at that exact offset in the file by putting "filler" (zeros) in the
file till the offset is reached. That simply takes a very long time (or till
the disk space runs out).
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