Bug 601552 - mkswap: free(): invalid next size (normal): 0x08aa7ce0 ***
Summary: mkswap: free(): invalid next size (normal): 0x08aa7ce0 ***
Status: CLOSED UPSTREAM
Alias: None
Product: Fedora
Classification: Fedora
Component: util-linux-ng (Show other bugs)
(Show other bugs)
Version: 13
Hardware: All Linux
low
medium
Target Milestone: ---
Assignee: Karel Zak
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Keywords:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2010-06-08 07:52 UTC by Jasper O'neal Hartline
Modified: 2010-06-17 09:02 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Environment:
Last Closed: 2010-06-17 09:02:55 UTC
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---


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Description Jasper O'neal Hartline 2010-06-08 07:52:06 UTC
Description of problem:
Running mkswap -p 1024 swap.file 
Causes Abortion on a swap.file of size 2 GigaBytes.

Version-Release number of selected component (if applicable):
util-linux-ng-2.17.2-5.fc13.i686

How reproducible:
100%

Steps to Reproduce:
1. dd if=/dev/zero of=swap.file bs=1024 count=2000000
2. mkswap -p 1024 swap.file
3.
  
Actual results:


Expected results:


Additional info:
[root@localhost swap]# dd if=/dev/zero of=swap.file bs=1024 count=2000000
2000000+0 records in
2000000+0 records out
2048000000 bytes (2.0 GB) copied, 39.8615 s, 51.4 MB/s
[root@localhost swap]# mkswap -p 1024 swap.file 
Using user-specified page size 1024, instead of the system value 4096
mkswap: swap.file: warning: don't erase bootbits sectors
        on whole disk. Use -f to force.
Setting up swapspace version 1, size = 1999999 KiB
no label, UUID=285062a6-be05-4118-8bc7-aa2e1ac7302d
*** glibc detected *** mkswap: free(): invalid next size (normal): 0x085e2ce0 ***
======= Backtrace: =========
/lib/libc.so.6(+0x6f1a1)[0xeb01a1]
/lib/libselinux.so.1(is_selinux_enabled+0x145)[0xc890c5]
mkswap[0x8049e5a]
/lib/libc.so.6(__libc_start_main+0xe6)[0xe57cc6]
mkswap[0x80490c1]
======= Memory map: ========
002c9000-002cc000 r-xp 00000000 08:02 6053934    /lib/libdl-2.12.so
002cc000-002cd000 r--p 00002000 08:02 6053934    /lib/libdl-2.12.so
002cd000-002ce000 rw-p 00003000 08:02 6053934    /lib/libdl-2.12.so
002ff000-0031e000 r-xp 00000000 08:02 6054027    /lib/libblkid.so.1.1.0
0031e000-00320000 rw-p 0001f000 08:02 6054027    /lib/libblkid.so.1.1.0
003ad000-003ca000 r-xp 00000000 08:02 6053890    /lib/libgcc_s-4.4.4-20100503.so.1
003ca000-003cb000 rw-p 0001d000 08:02 6053890    /lib/libgcc_s-4.4.4-20100503.so.1
0056e000-0056f000 r-xp 00000000 00:00 0          [vdso]
006f2000-006f6000 r-xp 00000000 08:02 6054014    /lib/libuuid.so.1.3.0
006f6000-006f7000 rw-p 00003000 08:02 6054014    /lib/libuuid.so.1.3.0
00ad5000-00af3000 r-xp 00000000 08:02 6053921    /lib/ld-2.12.so
00af3000-00af4000 r--p 0001d000 08:02 6053921    /lib/ld-2.12.so
00af4000-00af5000 rw-p 0001e000 08:02 6053921    /lib/ld-2.12.so
00c7f000-00c9b000 r-xp 00000000 08:02 6053985    /lib/libselinux.so.1
00c9b000-00c9c000 r--p 0001b000 08:02 6053985    /lib/libselinux.so.1
00c9c000-00c9d000 rw-p 0001c000 08:02 6053985    /lib/libselinux.so.1
00e41000-00fc6000 r-xp 00000000 08:02 6053928    /lib/libc-2.12.so
00fc6000-00fc7000 ---p 00185000 08:02 6053928    /lib/libc-2.12.so
00fc7000-00fc9000 r--p 00185000 08:02 6053928    /lib/libc-2.12.so
00fc9000-00fca000 rw-p 00187000 08:02 6053928    /lib/libc-2.12.so
00fca000-00fcd000 rw-p 00000000 00:00 0 
08048000-0804c000 r-xp 00000000 08:02 1720429    /sbin/mkswap
0804c000-0804d000 rw-p 00003000 08:02 1720429    /sbin/mkswap
085e1000-08602000 rw-p 00000000 00:00 0          [heap]
b769c000-b789c000 r--p 00000000 08:02 8069670    /usr/lib/locale/locale-archive
b789c000-b789e000 rw-p 00000000 00:00 0 
b78a5000-b78a8000 rw-p 00000000 00:00 0 
bfea1000-bfeb6000 rw-p 00000000 00:00 0          [stack]
Aborted
[root@localhost swap]#

Comment 1 Mike A. Harris 2010-06-08 08:39:25 UTC
It probably shouldn't crash when invoked in this manner, but the native page size on x86 and x86_64 hardware is 4kB, so forcing the page size of the swap file to something smaller than that doesn't make any sense whatsoever.

Comment 2 Jasper O'neal Hartline 2010-06-08 16:58:51 UTC
I agree if the native page size is meant to be used with mkswap, then it should not even have an option to specify it. So, this is a confusing aspect of the ability to even specify it at all. In any event it shouldn't crash that I agree..

Comment 3 Karel Zak 2010-06-17 09:02:55 UTC
Fixed in upstream tree, commit 630161f2715af033667a1398c9f1d2b87eaf61f9. The bugfix will be available in Fedora-14. Thanks.


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