Re: Broken hd or filesystem access after resume from suspend2disk

From: Andreas Hartmann
Date: Sun Nov 27 2011 - 09:07:44 EST


richard -rw- weinberger schrieb:
> On Sun, Nov 27, 2011 at 2:02 PM, Andreas Hartmann
> <andihartmann@xxxxxxxxxxxxxxx> wrote:
>> Hello,
>>
>> I'm often having trouble accessing the hd / filesystem after a resume
>> from suspend2disk. Sometimes, the machine completely hangs after resume
>> or it cannot be suspended at all.
>>
>> Today, I faced the following problem after resuming:
>>
>> Using wpa_supplicant failed with the message:
>>
>> wpa_supplicant -t -c /etc/wpa_supplicant/wpa_supplicant.conf -f
>> /var/log/wpa_supplicant.log -Dnl80211 -iwlan0
>> wpa_supplicant: symbol lookup error: /lib64/libssl.so.1.0.0: undefined
>> symbol: RAND_add
>>
>>
>> ldd `which wpa_supplicant`
>> linux-vdso.so.1 => (0x00007fffd84b9000)
>> libnl.so.1 => /lib64/libnl.so.1 (0x00007fe5ac0bd000)
>> libdl.so.2 => /lib64/libdl.so.2 (0x00007fe5abeb9000)
>> libssl.so.1.0.0 => /lib64/libssl.so.1.0.0 (0x00007fe5abc5d000)
>> libcrypto.so.1.0.0 => /lib64/libcrypto.so.1.0.0 (0x00007fe5ab8ad000)
>> libdbus-1.so.3 => /lib64/libdbus-1.so.3 (0x00007fe5ab668000)
>> libc.so.6 => /lib64/libc.so.6 (0x00007fe5ab2d9000)
>> libm.so.6 => /lib64/libm.so.6 (0x00007fe5ab082000)
>> /lib64/ld-linux-x86-64.so.2 (0x00007fe5ac30f000)
>> libz.so.1 => /lib64/libz.so.1 (0x00007fe5aae6a000)
>> libpthread.so.0 => /lib64/libpthread.so.0 (0x00007fe5aac4d000)
>> librt.so.1 => /lib64/librt.so.1 (0x00007fe5aaa45000)
>>
>>
>> rpm -qVf /lib64/libssl.so.1.0.0
>> 5........ /lib64/libcrypto.so.1.0.0
>>
>> -> The libcrypto-library seems to be broken.
>>
>> In order to check, if there are more broken libraries (after the
>> resume), I did a md5sum on the complete /lib64 directory to have it at
>> base for a recheck after a reboot.
>>
>> The recheck after the reboot showed two more broken files:
>>
>> cd /lib64
>> md5sum -c md5sum.out | grep FAILED
>> libcrypto.so.1.0.0: FAILED
>> libkeyutils.so.1: FAILED
>> libkeyutils.so.1.4: FAILED
>> md5sum: WARNING: 3 computed checksums did NOT match
>>
>> Apparently, there is something completely broken after resume.

[...]

>
> Hmmm, maybe this related to my problem:
> http://thread.gmane.org/gmane.linux.kernel/1116939/focus=1117113
>
> First I thought the issue is no longer present in newer kernels.
> But my netbook still suffers on it.

I just looked at the link above and can say that I face this problem
since opensuse 11.3 (kernel 2.6.34 ...) with my machine (64 bit). The
problem is, that the effects are always different, addicted to the file
which actually is corrupted. I even could see this kernel bug after
resume from s2disk, which seems to be filesystem related, too:

http://permalink.gmane.org/gmane.linux.kernel/1214998

I'm using a crypted lvm partition:

fdisk -l

Disk /dev/sda: 250.1 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders, total 488397168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xbab21f87

Device Boot Start End Blocks Id System
/dev/sda1 * 2048 321535 159744 83 Linux
/dev/sda2 321536 488396799 244037632 8e Linux LVM


pvdisplay
--- Physical volume ---
PV Name /dev/mapper/cr_sda2
VG Name system
PV Size 232.73 GiB / not usable 4.00 MiB
Allocatable yes
PE Size 4.00 MiB
Total PE 59578
Free PE 43519
Allocated PE 16059



lvdisplay
--- Logical volume ---
LV Name /dev/system/home
VG Name system
LV Write Access read/write
LV Status available
# open 1
LV Size 25.00 GiB
Current LE 6400
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 3072
Block device 253:1

--- Logical volume ---
LV Name /dev/system/opt
VG Name system
LV Write Access read/write
LV Status available
# open 1
LV Size 1.00 GiB
Current LE 256
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 3072
Block device 253:2

--- Logical volume ---
LV Name /dev/system/root
VG Name system
LV Write Access read/write
LV Status available
# open 1
LV Size 2.00 GiB
Current LE 512
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 3072
Block device 253:3

--- Logical volume ---
LV Name /dev/system/swap
VG Name system
LV Write Access read/write
LV Status available
# open 2
LV Size 4.00 GiB
Current LE 1024
Segments 2
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:4

--- Logical volume ---
LV Name /dev/system/usr
VG Name system
LV Write Access read/write
LV Status available
# open 1
LV Size 20.00 GiB
Current LE 5120
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 3072
Block device 253:5

--- Logical volume ---
LV Name /dev/system/var
VG Name system
LV Write Access read/write
LV Status available
# open 1
LV Size 10.73 GiB
Current LE 2747
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 3072
Block device 253:6


cryptsetup status cr_sda2
/dev/mapper/cr_sda2 is active and is in use.
type: LUKS1
cipher: aes-cbc-essiv:sha256
keysize: 256 bits
device: /dev/sda2
offset: 4096 sectors
size: 488071168 sectors
mode: read/write


The resume partition is /dev/system/swap



Kind regards,
Andreas Hartmann
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