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Re: [Bug-ddrescue] Fwd: Error writing logfile - Invalid Argument


From: Martin Bittermann
Subject: Re: [Bug-ddrescue] Fwd: Error writing logfile - Invalid Argument
Date: Thu, 14 May 2015 06:30:15 +0200
User-agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:31.0) Gecko/20100101 Thunderbird/31.6.0

Hi,

I wonder how ddrescue produced that logfile of yours.
Antonio, maybe you could have a look at the last line:

0x7C68EA0000  0x7FFFFF839715FFFF  ?

If you add these values, you realize the rescue devices's size is int64_max. (8 Exbibytes -1 Byte). The logfile actually had ddrescueview crash (so thanks for the unintended bug report).

Is this a bug in ddrescue or some kind of fallback behaviour when the device size cannot be determined?

Regards,
Martin


Am 06.05.2015 um 10:52 schrieb John Parr:
Ok looks like more bad news for me unless someone can figure out how to
edit the log to get things going again.

Here's what happened:
I checked the console and saw device wasn't ready. I figured the log was
hosed but then I tried to unmount the drive and it wouldn't. I figured the
log was toast so it didn't matter. I checked the drive and the .DMG file
and log were now missing. I was using a new drive dock and thought maybe it
was problematic. So I forced it to unmount. I put the drive on another USB
dock that I have used many times before with success and the log and DMG
file were there! So I started it up again and it looked like it was going
to work but then it stopped and is just sitting there.

I have a hunch that it's because the log couldn't write and stopped. Is
there any way to edit the log to get it to pickup again or is my best
option to start over? The log doesn't really seem to contain much anyway.
It also appears to be missing the previous 7 hours plus of entries.

I am also wondering if there are any issues with version 1.19? Anyone have
any ideas?

Here's what's in the log:

# Rescue Logfile. Created by GNU ddrescue version 1.19
# Command line: ./ddrescue -v /dev/rdisk3s2 /Volumes/RecoveryDisk/MHD.dmg
/Volumes/RecoveryDisk/MHD.log
# Start time:   2015-05-06 01:01:38
# Current time: 2015-05-06 01:06:18
# Copying non-tried blocks... Pass 1 (forwards)
# current_pos  current_status
0x7C68E90000     ?
#      pos        size  status
0x00000000  0x00120000  +
0x00120000  0x00010000  *
0x00130000  0x00010000  ?
0x00140000  0x14E90000  +
0x14FD0000  0x00010000  *
0x14FE0000  0x00010000  ?
0x14FF0000  0x00010000  *
0x15000000  0x00020000  ?
0x15020000  0x000E0000  +
0x15100000  0x00010000  *
0x15110000  0x00010000  ?
0x15120000  0x000E0000  +
0x15200000  0x00010000  *
0x15210000  0x00010000  ?
0x15220000  0x000D0000  +
0x152F0000  0x00010000  *
0x15300000  0x00010000  ?
0x15310000  0x000D0000  +
0x153E0000  0x00010000  *
0x153F0000  0x00010000  ?
0x15400000  0x00010000  *
0x15410000  0x00020000  ?
0x15430000  0x000C0000  +
0x154F0000  0x00010000  *
0x15500000  0x00010000  ?
0x15510000  0x005C0000  +
0x15AD0000  0x00010000  *
0x15AE0000  0x00010000  ?
0x15AF0000  0x00010000  +
0x15B00000  0x00010000  *
0x15B10000  0x00010000  ?
0x15B20000  0x000B0000  +
0x15BD0000  0x00010000  *
0x15BE0000  0x00010000  ?
0x15BF0000  0x1ADC0000  +
0x309B0000  0x00010000  *
0x309C0000  0x00010000  ?
0x309D0000  0x00DD0000  +
0x317A0000  0x00010000  *
0x317B0000  0x00010000  ?
0x317C0000  0x7C376E0000  +
0x7C68EA0000  0x7FFFFF839715FFFF  ?

---------- Previous message ----------

Date: Wed, May 6, 2015 at 12:01 AM
Subject: Re: [Bug-ddrescue] Error writing logfile - Invalid Argument
address@hidden


I was seeing "Device not ready" for the disk I am writing my log and image
to.
Looks like TimeMachine fired off. I also disabled spotlight for the volume
I an writing to.

It does seem to have cleared but when I press "Enter" it doesn't start up
again. I did Q+Enter and then tried to startup again and got:


ddrescue: Write error: Invalid argument

mac:ddrescue-1.19 jn$ sudo ./ddrescue -v /dev/rdisk3s2
/Volumes/RecoveryDisk/MHD.dmg /Volumes/RecoveryDisk/MHD.log

Password:xxxxxxxxxxxx

ddrescue: error in logfile /Volumes/RecoveryDisk/MHD.log, line 0.

mac:ddrescue-1.19 jn$

Looks like my log is hosed.

The disk I am writing to is a 1 TB with plenty of space and it's showing up
fine.


On Tue, May 5, 2015 at 11:36 PM, Robert Backhaus  wrote:

That is an error passed up from your OS. Possibilities include a full
partition or a disconnected USB device.

Any clues in the OS's log files?

On 6 May 2015 at 16:33, John Parr <address@hidden> wrote:
Yikes!
Never seen this before. I am halfway through a 1 TB drive and this shows
up.
Anyone got an idea how I can "fix the problem"?

ddrescue: Error writing logfile '/Volumes/RecoveryDisk/MHD.log': Invalid
argument

Fix the problem and press ENTER to retry, or Q+ENTER to abort.

-John
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