Re: glibc 2.14-4 eats my data (Re: F15 ext3, eCryptfs + samba = data corruption (Re: F15 "Error mounting eCryptfs: [-5] Input/output error" on different disks))

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On 07/08/2011 12:32 PM, Michał Piotrowski wrote:
W dniu 8 lipca 2011 18:21 użytkownik Michał Piotrowski
<mkkp4x4@xxxxxxxxx> napisał:
Hi,

2011/7/8 Andreas Schwab <schwab@xxxxxxxxxx>:
Use valgrind.
I attach valgrind output.

==1312== 1 errors in context 1 of 116:
==1312== Source and destination overlap in memcpy(0xaef1590, 0xaef1593, 76)
==1312==    at 0x4C283B6: memcpy@@GLIBC_2.14 (mc_replace_strmem.c:653)
==1312==    by 0x401835: ??? (in /sbin/mount.ecryptfs)
==1312==    by 0x5E3039C: (below main) (in /lib64/libc-2.14.so)
I installed ecryptfs-utils-debuginfo package and now it's more readable

==1815== 1 errors in context 1 of 116:
==1815== Source and destination overlap in memcpy(0xaef1590, 0xaef1593, 76)
==1815==    at 0x4C283B6: memcpy@@GLIBC_2.14 (mc_replace_strmem.c:653)
==1815==    by 0x401835: main (string3.h:52)


So it does appear to be related to the memcpy change in libc.

      
Could this be related to
 - Fix static linking with checking x86/x86-64 memcpy (BZ#12653)
or is it an eCryptfs problem?

Andreas.

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