mkfs.jffs2 aborts with MALLOC_CHECK_=2 on x86_64
Stefan Seyfried
seife at suse.de
Fri Jan 16 16:47:29 EST 2009
Hi,
current mtd-utils' mkfs.jffs2 aborts on me:
seife at stoetzler:~> /dev/shm/mtd-utils/mkfs.jffs2 -L
mkfs.jffs2:
lzo priority:80 disabled
zlib priority:60 enabled
rtime priority:50 enabled
seife at stoetzler:~> MALLOC_CHECK_=2 /dev/shm/mtd-utils/mkfs.jffs2 -U -b -e
131072 -p -r . -o /tmp/img.jffs2
Aborted
seife at stoetzler:~> MALLOC_CHECK_=1 /dev/shm/mtd-utils/mkfs.jffs2 -U -b -e
131072 -p -r . -o /tmp/img.jffs2
*** glibc detected *** /dev/shm/mtd-utils/mkfs.jffs2: free(): invalid pointer:
0x0000000000613870 ***
gdb shows:
Program received signal SIGABRT, Aborted.
0x00007ffff7681645 in raise () from /lib64/libc.so.6
(gdb) bt
#0 0x00007ffff7681645 in raise () from /lib64/libc.so.6
#1 0x00007ffff7682c33 in abort () from /lib64/libc.so.6
#2 0x00007ffff76c3140 in ?? () from /lib64/libc.so.6
#3 0x0000000000406a7b in jffs2_compress (
data_in=0x61a298
"\n=0\n.s3e.de//var/tuxbox/config/zapit/$i\ndone\nd=\"0001\"
frequency=\"12721750\" inversion=\"2\" symbol_rate=\"22000000\"
fec_inner=\"5\" polarization=\"0\">\n\t\t</transponder>\n\t\t<transponder
id=\"0006\" onid=\"0085\" fr"..., cpage_out=0x7fffffffd780,
datalen=0x7fffffffd78c, cdatalen=0x7fffffffd788) at compr.c:258
#4 0x00000000004040e7 in recursive_populate_directory (dir=0x617020) at
mkfs.jffs2.c:884
#5 0x00000000004038f9 in recursive_populate_directory (dir=0x613660) at
mkfs.jffs2.c:1410
#6 0x00000000004038f9 in recursive_populate_directory (dir=0x60c1d0) at
mkfs.jffs2.c:1410
#7 0x0000000000405151 in main (argc=10, argv=<value optimized out>) at
mkfs.jffs2.c:1430
I looked around and found out that it happens, when both enabled compressors
return -1 in compr.c line 246, and then the free in line 258 aborts.
doing
#define STREAM_END_SPACE 20
instead of the default of 12 in compr_zlib.c fixes it for me. However, I'm
neither shure if this has any bad side effects, nor _why_ it fixes it.
My host is 64bits (x86_64), maybe this is affecting the buffer sizes or
something like that.
Hope this is helpful.
Stefan
--
Stefan Seyfried
R&D Team Mobile Devices | "Any ideas, John?"
SUSE LINUX Products GmbH, Nürnberg | "Well, surrounding them's out."
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