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Bug#604013: marked as done (base: "ls -al" on armel inside loopback mounted ISO image failes with -1 ENOMEM)



Your message dated Sat, 7 May 2011 23:49:16 +0100
with message-id <20110507224916.GA22261@enorme.TCLDOMAIN.OFFICE>
and subject line Re: Bug#604013: base: "ls -al" on armel inside loopback mounted ISO image failes with -1 ENOMEM
has caused the Debian Bug report #604013,
regarding base: "ls -al" on armel inside loopback mounted ISO image failes with -1 ENOMEM
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
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immediately.)


-- 
604013: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=604013
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message ---
Package: base
Severity: normal

** Please type your report below this line ***

I'm running Debian on Seagate Dockstar (Kirkwood platform). When I mount a ISO image via loopback (mount -o loop myfile.iso /mnt) a ls inside this mounted tree (ls -al /mnt/) failes with "Cannot allocate memory". 

This is a test on the Kirkwood machine: 

----
root@dockstar:/srv/tftp# md5sum systemrescuecd-x86-1.6.2.iso
b7662eb44b530d62c487dd367f2036ed  systemrescuecd-x86-1.6.2.iso
root@dockstar:/srv/tftp# uname -a
Linux dockstar.lab.elconas.de 2.6.32-5-kirkwood #1 Sat Sep 18 15:20:08 UTC 2010 armv5tel GNU/Linux

root@dockstar:/srv/tftp# mount -o loop systemrescuecd-x86-1.6.2.iso sysrescuecd
root@dockstar:/srv/tftp# ls -al sysrescuecd
ls: cannot access sysrescuecd/bootdisk: Cannot allocate memory
ls: cannot access sysrescuecd/bootprog: Cannot allocate memory
ls: cannot access sysrescuecd/isolinux: Cannot allocate memory
ls: cannot access sysrescuecd/ntpasswd: Cannot allocate memory
ls: cannot access sysrescuecd/sysrcd.dat: Cannot allocate memory
ls: cannot access sysrescuecd/sysrcd.md5: Cannot allocate memory
ls: cannot access sysrescuecd/usb_inst: Cannot allocate memory
ls: cannot access sysrescuecd/usb_inst.sh: Cannot allocate memory
ls: cannot access sysrescuecd/usbstick.htm: Cannot allocate memory
ls: cannot access sysrescuecd/version: Cannot allocate memory
total 6
dr-xr-xr-x  1 root root    2048 Oct 11 20:09 .
drwxr-xr-x 22 tftp nogroup 4096 Nov 19 11:38 ..
??????????  ? ?    ?          ?            ? bootdisk
??????????  ? ?    ?          ?            ? bootprog
??????????  ? ?    ?          ?            ? isolinux
??????????  ? ?    ?          ?            ? ntpasswd
??????????  ? ?    ?          ?            ? sysrcd.dat
??????????  ? ?    ?          ?            ? sysrcd.md5
??????????  ? ?    ?          ?            ? usb_inst
??????????  ? ?    ?          ?            ? usb_inst.sh
??????????  ? ?    ?          ?            ? usbstick.htm
??????????  ? ?    ?          ?            ? version

dmesg ...
[49412.581257] ISO 9660 Extensions: Microsoft Joliet Level 3
[49412.581340] ISOFS: changing to secondary root

root@dockstar:/srv/tftp# ldd /bin/ls
        libselinux.so.1 => /lib/libselinux.so.1 (0x40005000)
        librt.so.1 => /lib/librt.so.1 (0x40026000)
        libacl.so.1 => /lib/libacl.so.1 (0x40036000)
        libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x40044000)
        libc.so.6 => /lib/libc.so.6 (0x40058000)
        libdl.so.2 => /lib/libdl.so.2 (0x40188000)
        /lib/ld-linux.so.3 (0x2a000000)
        libpthread.so.0 => /lib/libpthread.so.0 (0x40193000)
        libattr.so.1 => /lib/libattr.so.1 (0x401b3000)

root@dockstar:/srv/tftp# file /bin/ls
/bin/ls: ELF 32-bit LSB executable, ARM, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.18, stripped

root@dockstar:/srv/tftp# strace ls -al sysrescuecd/ntpasswd
.....
open("/proc/filesystems", O_RDONLY|O_LARGEFILE) = 3
fstat64(3, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001e000
read(3, "nodev\tsysfs\nnodev\trootfs\nnodev\tb"..., 1024) = 286
read(3, "", 1024)                       = 0
close(3)                                = 0
munmap(0x4001e000, 4096)                = 0
ioctl(1, SNDCTL_TMR_TIMEBASE or TCGETS, {B38400 opost isig icanon echo ...}) = 0
ioctl(1, TIOCGWINSZ, {ws_row=57, ws_col=190, ws_xpixel=0, ws_ypixel=0}) = 0
lstat64("sysrescuecd/ntpasswd", 0x280b0) = -1 ENOMEM (Cannot allocate memory)
write(2, "ls: ", 4ls: )                     = 4
write(2, "cannot access sysrescuecd/ntpass"..., 34cannot access sysrescuecd/ntpasswd) = 34
write(2, ": Cannot allocate memory", 24: Cannot allocate memory) = 24
write(2, "\n", 1
)                       = 1
close(1)                                = 0
close(2)                                = 0
exit_group(2)                           = ?
-----

When I do the same thing on normal x86_64 everything is ok: 

----

debian:/# md5sum systemrescuecd-x86-1.6.2.iso
b7662eb44b530d62c487dd367f2036ed  systemrescuecd-x86-1.6.2.iso
debian:/# uname -a
Linux debian 2.6.32-5-amd64 #1 SMP Fri Sep 17 21:50:19 UTC 2010 x86_64 GNU/Linux

debian:/# mount -o loop /systemrescuecd-x86-1.6.2.iso /mnt/test/
debian:/# ls -al /mnt/test
insgesamt 227894
dr-xr-xr-x 1 root root      2048 11. Okt 20:09 .
drwxr-xr-x 9 root root      4096 11. Nov 12:26 ..
dr-xr-xr-x 1 root root      2048 11. Jun 21:15 bootdisk
dr-xr-xr-x 1 root root      2048 26. Mai 09:07 bootprog
dr-xr-xr-x 1 root root      2048 11. Okt 20:10 isolinux
dr-xr-xr-x 1 root root      2048  2. Mär 2010  ntpasswd
-r-xr-xr-x 1 root root 233328640 11. Okt 20:09 sysrcd.dat
-r-xr-xr-x 1 root root        45 11. Okt 20:09 sysrcd.md5
dr-xr-xr-x 1 root root      2048 28. Jun 21:35 usb_inst
-r-xr-xr-x 1 root root     15672 25. Sep 23:20 usb_inst.sh
-r-xr-xr-x 1 root root       877 25. Sep 23:20 usbstick.htm
-r-xr-xr-x 1 root root         6 11. Okt 20:09 version

dmsg ...
[239067.031523] ISO 9660 Extensions: Microsoft Joliet Level 3
[239067.031570] ISOFS: changing to secondary root

----
As you can see from md5sum, the file content is the same. I suspect a problem in loop or VFS ? 

Regards, 
Robert 


-- System Information:
Debian Release: squeeze/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: armel (armv5tel)

Kernel: Linux 2.6.32-5-kirkwood
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)
Shell: /bin/sh linked to /bin/dash



--- End Message ---
--- Begin Message ---
Hi,

On Fri, Nov 19, 2010 at 12:12:01PM +0100, Robert Heinzmann wrote:

> dr-xr-xr-x  1 root root    2048 Oct 11 20:09 .
> drwxr-xr-x 22 tftp nogroup 4096 Nov 19 11:38 ..
                ^^^^^^^^^^^^
> ??????????  ? ?    ?          ?            ? bootdisk
 
> When I do the same thing on normal x86_64 everything is ok: 

> debian:/# ls -al /mnt/test
> insgesamt 227894
> dr-xr-xr-x 1 root root      2048 11. Okt 20:09 .
> drwxr-xr-x 9 root root      4096 11. Nov 12:26 ..
 
  It looks to me that you have an ownership problem.

  Others have tried to reproduce unsuccessfully and requested feedback
from you, I am closing this bug as it does not look like it.

  Please feel free to reopen this bug with more information if the problem
persists.

Kind regards,
-- 
 Héctor Orón

"Our Sun unleashes tremendous flares expelling hot gas into the Solar System, which one day will disconnect us."

-- Day DVB-T stop working nicely
Video flare: http://antwrp.gsfc.nasa.gov/apod/ap100510.html

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