[uml-devel] uml-patch-2.6.7-1

[uml-devel] uml-patch-2.6.7-1

[Jeff Dike]

Here is a belated patch that updates UML to 2.6.7.  The update was the only 
change from the 2.6.6 UML.

The next step will be the mm tree.  I'll get that UML fixed up, and start
splitting it into reasonable patches that Andrew is happy to feed to Linus.

The 2.6.7-1 UML patch is available at
	http://www.user-mode-linux.org/mirror/uml-patch-2.6.7-1.bz2

My BK tree is temporarily out of commission until I get my process feeding
patches from quilt into it.

For the other UML mirrors and other downloads, see 
        http://user-mode-linux.sourceforge.net/dl-sf.html
 
Other links of interest:
 
        The UML project home page : http://user-mode-linux.sourceforge.net
        The UML Community site : http://usermodelinux.org

				Jeff



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[uml-devel] Re: uml-patch-2.6.7-1

[Catalin(ux aka Dino) BOIE]

On Wed, 28 Jul 2004, Jeff Dike wrote:

> Here is a belated patch that updates UML to 2.6.7.  The update was the only
> change from the 2.6.6 UML.

One problem with debugging. I ran 2.6.7-1 like this:
./K2.6.7 debug ubd0=ROOT1 mem=32M

In xterm shows:
Checking for the skas3 patch in the host...not found
Checking for /proc/mm...not found
tracing thread pid = 14253

Then, in the debugging xterm:
GNU gdb 6.1.1
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you 
are
welcome to change it and/or distribute copies of it under certain 
conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for 
details.
This GDB was configured as "i486-slackware-linux"...Using host 
libthread_db library "/lib/libthread_db.so.1".

0xa01c4a71 in kill () at sock.h:805
805     sock.h: No such file or directory.
         in sock.h
Error accessing memory address 0xa0034c20: No such process.
Error accessing memory address 0xa001c530: No such process.
Error accessing memory address 0xa00022a0: No such process.
/tmp/gdb_init-ziuYCQ:6: Error in sourced command file:
ptrace: Operation not permitted.
0xa01c4a71 in kill () at sock.h:805
805     in sock.h
(gdb) Quit
(gdb)

This is a Slackware 10.

No patches on host (also 2.6.7).

How can I help debugging this problem?

Thanks!
---
Catalin(ux aka Dino) BOIE
catab at deuroconsult.ro
http://kernel.umbrella.ro/


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[uml-devel] Re: uml-patch-2.6.7-1 [bug report 2]

[Catalin(ux aka Dino) BOIE]

> Here is a belated patch that updates UML to 2.6.7.  The update was the only
> change from the 2.6.6 UML.

Host is 2.6.7 without patches.

./linux mem=32M ubd0=ROOTx
Checking for the skas3 patch in the host...not found
Checking for /proc/mm...not found
tracing thread pid = 14560
Linux version 2.6.7-1um (root@dino) (gcc version 3.3.4) #1 Wed Jul 28 
10:50:24 EEST 2004
On node 0 totalpages: 8192
   DMA zone: 8192 pages, LIFO batch:2
   Normal zone: 0 pages, LIFO batch:1
   HighMem zone: 0 pages, LIFO batch:1
Built 1 zonelists
Kernel command line: mem=32M ubd0=ROOTx root=98:0
PID hash table entries: 16 (order 4: 128 bytes)
Memory: 28728k available
Calibrating delay loop... 1667.89 BogoMIPS
Security Scaffold v1.0.0 initialized
Capability LSM initialized
Dentry cache hash table entries: 4096 (order: 2, 16384 bytes)
Inode-cache hash table entries: 2048 (order: 1, 8192 bytes)
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
Checking for host processor cmov support...Yes
Checking for host processor xmm support...No
Checking that ptrace can change system call numbers...OK
Checking that host ptys support output SIGIO...Yes
Checking that host ptys support SIGIO on close...No, enabling workaround
Checking for /dev/anon on the host...Not available (open failed with errno 
2)
NET: Registered protocol family 16
mconsole (version 2) initialized on /root/.uml/bcNIqz/mconsole
UML Watchdog Timer
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
Initializing Cryptographic API
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
netconsole: not configured, aborting
md: linear personality registered as nr 1
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
md: raid5 personality registered as nr 4
raid5: measuring checksumming speed
    8regs     :  3810.000 MB/sec
    8regs_prefetch:  2555.600 MB/sec
    32regs    :  1729.200 MB/sec
    32regs_prefetch:  1715.200 MB/sec
raid5: using function: 8regs (3810.000 MB/sec)
raid6: int32x1    619 MB/s
raid6: int32x2    603 MB/s
raid6: int32x4    476 MB/s
raid6: int32x8    347 MB/s
raid6: using algorithm int32x1 (619 MB/s)
md: raid6 personality registered as nr 8
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
device-mapper: 4.1.0-ioctl (2003-12-10) initialised: dm@uk.sistina.com
NET: Registered protocol family 2
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 2048 bind 4096)
NET: Registered protocol family 1
NET: Registered protocol family 10
IPv6 over IPv4 tunneling driver
NET: Registered protocol family 17
NET: Registered protocol family 15
Initializing software serial port version 1
Kernel panic: fix_range fixing wrong address space, current = 0xa08cc700
  <6>SysRq : Show Regs

EIP: 0073:[<a01de26d>] CPU: 0 Not tainted ESP: 007b:a08c17ac EFLAGS: 
00000292
     Not tainted
EAX: 00000000 EBX: 0000394b ECX: 0000000a EDX: ffffffff
ESI: a001d480 EDI: 00000000 EBP: a08c17d4 DS: 007b ES: 007b
Call Trace: [<a010b2d4>] [<a001c11f>] [<a00357b1>] [<a0042406>] 
[<a0034cb5>]
    [<a0034d37>] [<a0016728>] [<a001e6c6>] [<a001e63b>] [<a001eb89>] 
[<a001ae69>]
    [<a001d212>] [<a0207669>] [<a00372de>] [<a0037288>] [<a0012558>] 
[<a0045659>]
    [<a0045630>] [<a01c4630>] [<a00455d0>] [<a00166fa>] [<a001934d>] 
[<a00455d0>]
    [<a00166df>] [<a002fd0d>] [<a00455d0>] [<a00455d0>] [<a002fd91>] 
[<a01dc3a0>]
    [<a0017050>] [<a0016495>] [<a00455d0>] [<a001d398>] [<a001d3f5>] 
[<a001d480>]
    [<a01c4978>] [<a001d480>] [<a01de26d>]
sleeping process 14665 got unexpected signal : 10


If I start gdb:
att 14560
Attaching to program: /data/UML3/kernels/K2.6.7, process 14560
0xa01da830 in pause () at sock.h:805
805     sock.h: No such file or directory.
         in sock.h
(gdb) bt
#0  0xa01da830 in pause () at sock.h:805
#1  0xa001ede5 in tracer_panic (
     format=0xa022a300 "sleeping process %d got unexpected signal : %d\n")
     at arch/um/kernel/tt/tracer.c:86
#2  0xa001ef34 in sleeping_process_signal (pid=14665, sig=10)
     at arch/um/kernel/tt/tracer.c:153
#3  0xa001f3e5 in tracer (init_proc=0xa001db60 <start_kernel_proc>,
     sp=0xa0277ffc) at arch/um/kernel/tt/tracer.c:292
#4  0xa001dccb in start_uml_tt () at arch/um/kernel/tt/process_kern.c:507
#5  0xa001bfe3 in linux_main (argc=-1610612736, argv=0x2000000)
     at arch/um/kernel/um_arch.c:389
#6  0xa000e3a6 in main (argc=4, argv=0xbffff554, envp=0xbffff568)
     at arch/um/main.c:146

---
Catalin(ux aka Dino) BOIE
catab at deuroconsult.ro
http://kernel.umbrella.ro/


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