Public bug reported:
md5sum ubuntu-7.04-desktop-amd64.iso
a2b159599b69cea51371eee1ec5feda6 *ubuntu-7.04-desktop-amd64.iso
boot with usb-cdrom
ctrl-alt-f6
sudo su
cat /proc/cmdline
BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper
initrd=/casper/initrd.gz quiet splash --
uname -a
Linux ubuntu 2.6.20-15-generic #2 SMP Sun Apr 15 06:17:24 UTC 2007 x86_64
GNU/Linux
mkdir /s3
# /dev/hda3 is ext2
mount /dev/hda3 /s3
modprobe cloop
# mknod /dev/cloop1 b 240 1 (cloop1 is exist)
# KNOPPIX file is copied from knoppix 5.1.1
losetup /dev/cloop1 /s3/KNOPPIX/KNOPPIX
losetup /dev/cloop1 /s3/KNOPPIX/KNOPPIX >err1.txt 2> err2.txt
cat err2.txt
ioctl: LOOP_SET_FD: Cannot allocate memory
dmesg
[ 185.562396] cloop: Initializing cloop v2.02
[ 185.570195] cloop: loaded (max 8 devices)
[ 192.488850] cloop: out of kernel mem for block buffer (0 bytes)
[ 194.886974] cloop: out of kernel mem for block buffer (0 bytes)
rmmod cloop
modprobe cloop file=/s3/KNOPPIX/KNOPPIX >err3.txt 2> err4.txt
cat err4.txt
FATAL: Error inserting cloop
(/lib/modules/2.6.20-15-generic/kernel/ubuntu/misc/cloop.ko): Cannot allocate
memory
dmesg
[ 331.935216] cloop: unloaded.
[ 335.176826] cloop: Initializing cloop v2.02
[ 335.178830] cloop: loaded (max 8 devices)
[ 335.178874] cloop: out of kernel mem for block buffer (0 bytes)
[ 335.205448] Unable to handle kernel paging request at ffffffff882a8ae8 RIP:
[ 335.205448] [<ffffffff80337ba7>] get_disk+0x17/0x80 [ 335.205448] PGD 203027
PUD 205027
PMD 10c97067 PTE 0
[ 335.205448] Oops: 0000 [1] SMP
[ 335.205450] CPU 0
[ 335.205450] Modules linked in: binfmt_misc rfcomm l2cap bluetooth ppdev lp
cpufreq_userspace cpufreq_stats cpufreq_powersave cpufreq_ondemand
freq_table cpufreq_conservative tc1100_wmi sony_acpi pcc_acpi dev_acpi video
sbs i2c_ec dock container button battery asus_acpi backlight ac ipv6
af_packet fuse pcspkr shpchp pci_hotplug intel_agp parport_pc parport
psmouse i2c_piix4 serio_raw i2c_core tsdev evdev floppy squashfs loop
unionfs nls_cp437 isofs ext3 jbd ext2 mbcache ide_cd cdrom ide_disk
ata_generic libata piix generic pcnet32 mii BusLogic scsi_mod thermal
processor fan fbcon tileblit font bitblit softcursor vesafb cfbcopyarea
cfbimgblt cfbfillrect capability commoncap
[ 335.206076] Pid: 8442, comm: vol_id Not tainted 2.6.20-15-generic #2
[ 335.206076] RIP: 0010:[<ffffffff80337ba7>] [<ffffffff80337ba7>]
get_disk+0x17/0x80
[ 335.207965] RSP: 0018:ffff810010687d68 EFLAGS: 00010286
[ 335.208033] RAX: ffffffff882a8aa0 RBX: ffff810014c86e80 RCX: 0000000000000001
[ 335.208102] RDX: ffff810010687e0c RSI: ffff810018a92400 RDI: ffff810018a92400
[ 335.208170] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
[ 335.208240] R10: 00000000000002af R11: ffffffff8022daf0 R12: 000000000f000004
[ 335.208381] R13: ffff810018a92400 R14: ffffffff802d96f0 R15: 0000000000000000
[ 335.208476] FS: 00002b8e3f7b06f0(0000) GS:ffffffff8054e000(0000)
knlGS:0000000000000000
[ 335.208593] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 335.208666] CR2: ffffffff882a8ae8 CR3: 000000001076f000 CR4: 00000000000006e0
[ 335.208806] Process vol_id (pid: 8442, threadinfo ffff810010686000, task
ffff81000cd1d140)
[ 335.208907] Stack: 00000000000000d0 ffff810014c86e80 0000000000000000
ffffffff8025e19c
[ 335.208915] ffff81001f6c8980 ffffffff803a95c3 00000000000000f0
ffff810010687e0c
[ 335.208922] ffff81001da1e800 ffff81001f6c8980 ffff81001f6c8980
ffff81001d954e80
[ 335.208928] Call Trace:
[ 335.208933] [<ffffffff8025e19c>] exact_lock+0xc/0x20
[ 335.208937] [<ffffffff803a95c3>] kobj_lookup+0xf3/0x170
[ 335.208941] [<ffffffff802ef2b0>] blkdev_open+0x0/0x80
[ 335.208945] [<ffffffff80337d37>] get_gendisk+0x17/0x30
[ 335.208948] [<ffffffff802eecbf>] do_open+0x4f/0x310
[ 335.208951] [<ffffffff802eec57>] bdget+0x117/0x130
[ 335.208953] [<ffffffff802ef2b0>] blkdev_open+0x0/0x80
[ 335.208955] [<ffffffff802ef2ec>] blkdev_open+0x3c/0x80
[ 335.208957] [<ffffffff8021f11c>] __dentry_open+0xfc/0x1f0
[ 335.208958] [<ffffffff80228aad>] do_filp_open+0x2d/0x40
[ 335.208960] [<ffffffff80219faa>] do_sys_open+0x5a/0x100
[ 335.208961] [<ffffffff8026111e>] system_call+0x7e/0x83
[ 335.208962]
[ 335.208963]
[ 335.208964] Code: 48 8b 68 48 48 85 ed 74 1f 65 8b 04 25 24 00 00 00 83 7d
00
[ 335.208964] RIP [<ffffffff80337ba7>] get_disk+0x17/0x80
[ 335.208964] RSP <ffff810010687d68>
[ 335.208964] CR2: ffffffff882a8ae8
[ 335.208964]
cat /proc/cpuinfo
processor : 0
vendor_id : AuthenticAMD
cpu family : 15
model : 75
model name : AMD Athlon(tm) 64 X2 Dual Core Processor 4200+
stepping : 2
cpu MHz : 2297.085
cache size : 512 KB
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush mmx fxsr
sse sse2 syscall nx mmxext fxsr_opt rdtscp lm 3dnowext 3dnow pni cx16 lahf_lm
bogomips : 4448.03
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management: ts fid vid ttp tm stc
processor : 1
vendor_id : AuthenticAMD
cpu family : 15
model : 75
model name : AMD Athlon(tm) 64 X2 Dual Core Processor 4200+
stepping : 2
cpu MHz : 2297.085
cache size : 512 KB
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush mmx fxsr
sse sse2 syscall nx mmxext fxsr_opt rdtscp lm 3dnowext 3dnow pni cx16 lahf_lm
bogomips : 4434.23
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management: ts fid vid ttp tm stc
memory 2G
same command work with ubuntu-6.06.1-desktop-amd64.iso
** Affects: Ubuntu
Importance: Undecided
Status: Unconfirmed
--
cloop don't work with 7.04 (amd64)
https://bugs.launchpad.net/bugs/120512
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