GNU bug report logs - #18314
[bug] fail to print device info

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: lumin <cdluminate <at> gmail.com>
To: bug-parted <at> gnu.org
Subject: [bug] fail to print device info
Date: Fri, 22 Aug 2014 01:31:21 +0000

parted version: 3.2 (debian jessie)
debian package version: 
> parted/testing,testing,now 3.2-4 amd64

hello,
I am new at bug reporting, and I am trying to provide enough information
about the BUG I have encountered.

I have dd'ed a debian 7.6 DVD installation media(iso) directly into my
USB stick(USB3.0). I am sure there is no damage on this device. 
Then I'd like to make a new partition table,then I typed 'print' first:

```
(parted) print
Warning: The driver descriptor says the physical block size is 2048
bytes, but Linux says it is 512 bytes.
Ignore/Cancel? I
```

then the bug occured.
this is device info required by the program:
```
(parted)
print                                                            
Warning: The driver descriptor says the physical block size is 2048
bytes, but
Linux says it is 512 bytes.
Ignore/Cancel?
C                                                          
Model: Kingston DataTraveler 3.0 (scsi)
Disk /dev/sdc: 15356160s
Sector size (logical/physical): 512B/512B
Partition Table: unknown
Disk Flags: 
```
when I say Ignore:
```
***
Command History:
unit
s
print
I

Error: A general SIGSEGV signal was encountered.
```
 
this is the original BUG:
(parted /dev/sdc)
```
Command History:
print
I

Error: SEGV_MAPERR (Address not mapped to object)
Backtrace has 16 calls on stack:
  16: /lib/x86_64-linux-gnu/libparted.so.2(ped_assert+0x31)
[0x7ffbda65f5f1]
  15: parted() [0x40a684]
  14: /lib/x86_64-linux-gnu/libc.so.6(+0x35480) [0x7ffbd9e6a480]
  13: /lib/x86_64-linux-gnu/libc.so.6(+0x90875) [0x7ffbd9ec5875]
  12: /lib/x86_64-linux-gnu/libparted.so.2(+0x1817e) [0x7ffbda66a17e]
  11: /lib/x86_64-linux-gnu/libparted.so.2(ped_geometry_read+0x35)
[0x7ffbda665a85]
  10: /lib/x86_64-linux-gnu/libparted.so.2(+0x1ce16) [0x7ffbda66ee16]
  9: /lib/x86_64-linux-gnu/libparted.so.2(ped_file_system_probe_specific
+0x37) [0x7ffbda660a07]
  8: /lib/x86_64-linux-gnu/libparted.so.2(ped_file_system_probe+0x4e)
[0x7ffbda660ace]
  7: /lib/x86_64-linux-gnu/libparted.so.2(+0x2954c) [0x7ffbda67b54c]
  6: /lib/x86_64-linux-gnu/libparted.so.2(ped_disk_new+0x48)
[0x7ffbda6644b8]
  5: parted() [0x407659]
  4: parted(interactive_mode+0xff) [0x40c6ef]
  3: parted(main+0x1175) [0x405f45]
  2: /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5)
[0x7ffbd9e56b45]
  1: parted() [0x405f98]
```

then I erased the first sector of the disk:
sudo dd if=/dev/zero of=/dev/sdc bs=512 count=1
then ALL things went back to normal.
seems like matter of Device driver.

-- 
Regards,
  C.D.Luminate

Message #8 received at submit <at> debbugs.gnu.org (full text, mbox):

From: "Brian C. Lane" <bcl <at> redhat.com>
To: bug-parted <at> gnu.org
Subject: Re: bug#18314: [bug] fail to print device info
Date: Fri, 22 Aug 2014 08:31:13 -0700

On Fri, Aug 22, 2014 at 01:31:21AM +0000, lumin wrote:
 
> Error: SEGV_MAPERR (Address not mapped to object)
> Backtrace has 16 calls on stack:
>   16: /lib/x86_64-linux-gnu/libparted.so.2(ped_assert+0x31)
> [0x7ffbda65f5f1]
>   15: parted() [0x40a684]
>   14: /lib/x86_64-linux-gnu/libc.so.6(+0x35480) [0x7ffbd9e6a480]
>   13: /lib/x86_64-linux-gnu/libc.so.6(+0x90875) [0x7ffbd9ec5875]
>   12: /lib/x86_64-linux-gnu/libparted.so.2(+0x1817e) [0x7ffbda66a17e]
>   11: /lib/x86_64-linux-gnu/libparted.so.2(ped_geometry_read+0x35)
> [0x7ffbda665a85]
>   10: /lib/x86_64-linux-gnu/libparted.so.2(+0x1ce16) [0x7ffbda66ee16]
>   9: /lib/x86_64-linux-gnu/libparted.so.2(ped_file_system_probe_specific
> +0x37) [0x7ffbda660a07]
>   8: /lib/x86_64-linux-gnu/libparted.so.2(ped_file_system_probe+0x4e)
> [0x7ffbda660ace]
>   7: /lib/x86_64-linux-gnu/libparted.so.2(+0x2954c) [0x7ffbda67b54c]
>   6: /lib/x86_64-linux-gnu/libparted.so.2(ped_disk_new+0x48)
> [0x7ffbda6644b8]
>   5: parted() [0x407659]
>   4: parted(interactive_mode+0xff) [0x40c6ef]
>   3: parted(main+0x1175) [0x405f45]
>   2: /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5)
> [0x7ffbd9e56b45]
>   1: parted() [0x405f98]
> ```
> 
> then I erased the first sector of the disk:
> sudo dd if=/dev/zero of=/dev/sdc bs=512 count=1
> then ALL things went back to normal.
> seems like matter of Device driver.

Did you happen to make a copy of the sector? If not there isn't much we
can do to reproduce this.

-- 
Brian C. Lane | Anaconda Team | IRC: bcl #anaconda | Port Orchard, WA (PST8PDT)

Message #11 received at submit <at> debbugs.gnu.org (full text, mbox):

From: lumin <cdluminate <at> gmail.com>
To: 18314 <at> debbugs.gnu.org, bug-parted <bug-parted <at> gnu.org>
Cc: bcl <at> redhat.com
Subject: Re: bug#18314: [bug] fail to print device info
Date: Wed, 08 Oct 2014 14:24:48 +0000

Sorry to reply after so long time.
I tried to replay it, then I dd'ed a iso file into the flash disk,
But it doesn't happen again, even if partprobe said :

Warning: The driver descriptor says the physical block size is 2048
bytes, but Linux says it is 512 bytes.

NO ANY PROBLEM even if I choose "Ignore" always.
Jessie updated its kernel to 3.16 recently,
Maybe it is kernel-related... I don't know.
-- 
Regards,
  C.D.Luminate

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