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OverlordQ
PostPosted: Thu Jan 06, 2011 4:06 pm 
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Joined: Sat Jun 05, 2004 12:49 am
Posts: 333
Trying to boot with a 2.6.37 from a working 2.6.36.2 config can never get past the grub menu.

Selecting the built kernel I only see:

Code:
close blk: backend at /local/domain/0/backend/vbd/133/51712
close blk: backend at /local/domain/0/backend/vbd/133/51728


before the node commits seppiku and kicks me back to lish where lassie restarts the node again. I based this last config off of one of the linode sources and it still didn't work.

config here
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OverlordQ
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PostPosted: Mon Jan 10, 2011 7:04 pm 
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Posts: 333
More logging:

Quote:
close blk: backend at /local/domain/0/backend/vbd/144/51712

close blk: backend at /local/domain/0/backend/vbd/144/51728

(early) Linux version 2.6.37 (root@foo.com) (gcc version 4.4.5 (Debian 4.4.5-10) ) #7 SMP Mon Jan 10 22:48:27 UTC 2011
(early) Command line: root=/dev/xvda ro earlyprintk=xen
(early) released 0 pages of unused memory
(early) BIOS-provided physical RAM map:
(early) Xen: 0000000000000000 - 00000000000a0000 (usable)
(early) Xen: 00000000000a0000 - 0000000000100000 (reserved)
(early) Xen: 0000000000100000 - 0000000020800000 (usable)
(early) bootconsole [xenboot0] enabled
(early) NX (Execute Disable) protection: active
(early) DMI not present or invalid.
(early) last_pfn = 0x20800 max_arch_pfn = 0x400000000
(early) init_memory_mapping: 0000000000000000-0000000020800000

[screen is terminating]


Compared to a good boot:

Quote:
Linux version 2.6.36.2-tdc (root@foo) (gcc version 4.4.5 (Debian 4.4.5-10) ) #1 SMP Tue Dec 14 16:32:19 UTC 2010
Command line: root=/dev/xvda ro
released 0 pages of unused memory
BIOS-provided physical RAM map:
Xen: 0000000000000000 - 00000000000a0000 (usable)
Xen: 00000000000a0000 - 0000000000100000 (reserved)
Xen: 0000000000100000 - 0000000020000000 (usable)
NX (Execute Disable) protection: active
DMI not present or invalid.
last_pfn = 0x20000 max_arch_pfn = 0x400000000
init_memory_mapping: 0000000000000000-0000000020000000
Zone PFN ranges:
DMA 0x00000001 -> 0x00001000
DMA32 0x00001000 -> 0x00100000
Normal empty
Movable zone start PFN for each node
early_node_map[2] active PFN ranges
0: 0x00000001 -> 0x000000a0
0: 0x00000100 -> 0x00020000
SMP: Allowing 4 CPUs, 0 hotplug CPUs


Only difference I see is in the init_memory_mapping line and the ram map saying there's 8MiB more.
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caker
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PostPosted: Mon Jan 10, 2011 7:09 pm 
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Joined: Tue Apr 15, 2003 6:24 pm
Posts: 3090
Website: http://www.linode.com/
Location: Galloway, NJ
OverlordQ wrote:
my fear is that it's just an incompatibility with linodes glacially old version of Xen.

Please check your facts. Our Xen version isn't old at all.

-Chris
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OverlordQ
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PostPosted: Mon Jan 10, 2011 8:02 pm 
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Posts: 333
caker wrote:
OverlordQ wrote:
my fear is that it's just an incompatibility with linodes glacially old version of Xen.

Please check your facts. Our Xen version isn't old at all.

-Chris


lets check . . .

Quote:
root (hd0)
Filesystem type is ext2fs, using whole disk
kernel /boot/vmlinuz-2.6.37 root=/dev/xvda ro

ERROR Invalid kernel: xc_dom_find_loader: no loader found

xc_dom_core.c:503: panic: xc_dom_find_loader: no loader found
xc_dom_parse_image returned -1

Error 9: Unknown boot failure



Huuuurm. That's no fun . . . Wonder how old that goes back . . Ahhh, august of 2009. (And as a reference point, heres the original request)
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jfkw
 Post subject: I
PostPosted: Wed Jan 26, 2011 12:55 pm 
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Joined: Wed Jan 26, 2011 12:51 pm
Posts: 1
I encountered this today too. Gentoo Linux 2.6.37.

No smoldering resentment about Xen versions here ;), but I am extremely interested in news about 2.6.37 kernel compatibility when there are announcements to make.

Can the Admins make a sticky topic or similar Linode FAQ to refer to?

Thanks,
Jeff
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Cromulent
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PostPosted: Fri Jan 28, 2011 4:05 pm 
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Joined: Wed Oct 20, 2010 12:35 pm
Posts: 111
Location: United Kingdom
I've been running 2.6.37 on Ubuntu 10.04 successfully since the day after it was released.
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OverlordQ
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PostPosted: Fri Jan 28, 2011 6:16 pm 
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Posts: 333
Mind posting your config then?
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Net-burst
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PostPosted: Sat Jan 29, 2011 7:19 am 
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Joined: Fri Jan 28, 2011 10:21 am
Posts: 17
Location: Kiev, Ukraine
How your kernel is compressed? If its lzma, then switch compression to gzip. That may be the case. Maybe Xen Hypervisor dont support lzma.
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OverlordQ
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PostPosted: Mon Jan 31, 2011 4:36 pm 
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Joined: Sat Jun 05, 2004 12:49 am
Posts: 333
Net-burst wrote:
How your kernel is compressed? If its lzma, then switch compression to gzip. That may be the case. Maybe Xen Hypervisor dont support lzma.


Not related to the core issue.
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OverlordQ
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PostPosted: Mon Feb 14, 2011 7:35 pm 
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Joined: Sat Jun 05, 2004 12:49 am
Posts: 333
So for giggles I took 2.6.37-linode30[1], ran oldconfig and accepted all the defaults[2] (diff[3]) and still no joy. Any other ideas?


1 - http://pastebin.com/va59RfwE
2 - http://pastebin.com/Q9p044VA
3 - http://pastebin.com/Pu4fCZmd
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caker
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PostPosted: Mon Feb 14, 2011 7:39 pm 
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Joined: Tue Apr 15, 2003 6:24 pm
Posts: 3090
Website: http://www.linode.com/
Location: Galloway, NJ
Does our 2.6.37-linode30 boot on your Linode? I've had reports of it failing to boot for some people, which is preventing "Latest 2.6" from pointing to it.

How does your 2.6.37-linode30 fail under pv_grub?

Thanks,
-Chris

EDIT: I see yours is 64 bit - so never mind my very first question.
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OverlordQ
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PostPosted: Mon Feb 14, 2011 8:02 pm 
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Joined: Sat Jun 05, 2004 12:49 am
Posts: 333
After I get the grub prompt it spits me back to lish like it can't load the kernel.

Output:

Code:
[overlordq@fremont138 lish] There is no screen to be attached matching overlordq.

Your Linode isn't running, or another console session is already active.
[overlordq@fremont138 lish]# 
[overlordq@fremont138 lish] 
Xen Minimal OS!

start_info:   0xa8d000

  nr_pages:   131072  shared_inf: bf215000

  pt_base:    0xa90000  mod_start:  0x0

  mod_len:    0

  flags:      0x0

  cmd_line:   (hd0)/boot/grub/menu.lst

  stack:      0x94c860-0x96c860

MM: Init

  _text:        0x0

  _etext:       0x5ce26

  _erodata:     0x75000

  _edata:       0x7db00

  stack start:  0x94c860

  _end:         0x98ce48

  start_pfn:    a9c

  max_pfn:      20000

Mapping memory range 0xc00000 - 0x20000000

setting 0x0-0x75000 readonly

skipped 0x1000

MM: Initialise page allocator for b96000(b96000)-20000000(20000000)

MM: done

Demand map pfns at 20001000-2020001000.

Heap resides at 2020002000-4020002000.
Initialising timer interface
Initialising console ... done.
gnttab_table mapped at 0x20001000.
Initialising scheduler
Thread "Idle": pointer: 0x2020002010, stack: 0xca0000
Initialising xenbus
Thread "xenstore": pointer: 0x20200027c0, stack: 0xcb0000
Dummy main: start_info=0x96c960
Thread "main": pointer: 0x2020002f70, stack: 0xcd0000
"main" "(hd0)/boot/grub/menu.lst" 
vbd 51712 is hd0
******************* BLKFRONT for device/vbd/51712 **********

backend at /local/domain/0/backend/vbd/86/51712
Failed to read /local/domain/0/backend/vbd/86/51712/feature-flush-cache.
20971520 sectors of 512 bytes
**************************
vbd 51728 is hd1
******************* BLKFRONT for device/vbd/51728 **********

backend at /local/domain/0/backend/vbd/86/51728
Failed to read /local/domain/0/backend/vbd/86/51728/feature-flush-cache.
1056768 sectors of 512 bytes
**************************

<GRUB MENU HERE>

  Booting command-list

root  (hd0)
 Filesystem type is ext2fs, using whole disk
kernel  /boot/vmlinuz-2.6.37 root=/dev/xvda ro earlyprintk=xen

close blk: backend at /local/domain/0/backend/vbd/86/51712

close blk: backend at /local/domain/0/backend/vbd/86/51728

(early) Linux version 2.6.37 (root@thedarkcitadel.com) (gcc version 4.4.5 (Debian 4.4.5-10) ) #3 SMP Mon Feb 14 23:29:20 UTC 2011
(early) Command line: root=/dev/xvda ro earlyprintk=xen
(early) released 0 pages of unused memory
(early) BIOS-provided physical RAM map:
(early)  Xen: 0000000000000000 - 00000000000a0000 (usable)
(early)  Xen: 00000000000a0000 - 0000000000100000 (reserved)
(early)  Xen: 0000000000100000 - 0000000020800000 (usable)
(early) bootconsole [xenboot0] enabled
(early) NX (Execute Disable) protection: active
(early) DMI not present or invalid.
(early) last_pfn = 0x20800 max_arch_pfn = 0x400000000
(early) init_memory_mapping: 0000000000000000-0000000020800000

[screen is terminating]

[overlordq@fremont138 lish]# 
[overlordq@fremont138 lish] There is no screen to be attached matching overlordq.


A working boot however:

Code:
Xen Minimal OS!
start_info:   0xa8d000
st
nr_pages:   131072  shared_inf: bf73c000
  
pt_base: 0xa90000  mod_start:  0x0
  
mod_len: 0
  
flags: 0x0
  
cmd_line:   (hd0)/boot/grub/menu.lst
  
stack: 0x94c860-0x96c860
MM: Init
MM
_text: 0x0
  
_etext: 0x5ce26
  
_erodata: 0x75000
  
_edata: 0x7db00
  
stack start:  0x94c860
  
_end: 0x98ce48
  
start_pfn: a9c
  
max_pfn: 20000
Mapping memory range 0xc00000 - 0x20000000
setting 0x0-0x75000 readonly
skipped 0x1000
MM: Initialise page allocator for b96000(b96000)-20000000(20000000)
MM: done
Demand map pfns at 20001000-2020001000.
Heap resides at 2020002000-4020002000.
Initialising timer interface
Initialising console ... done.
gnttab_table mapped at 0x20001000.
Initialising scheduler
Thread "Idle": pointer: 0x2020002010, stack: 0xca0000
Initialising xenbus
Thread "xenstore": pointer: 0x20200027c0, stack: 0xcb0000
Dummy main: start_info=0x96c960
Thread "main": pointer: 0x2020002f70, stack: 0xcd0000
"main" "(hd0)/boot/grub/menu.lst"
vbd 51712 is hd0
******************* BLKFRONT for device/vbd/51712 **********


backend at /local/domain/0/backend/vbd/87/51712
Failed to read /local/domain/0/backend/vbd/87/51712/feature-flush-cache.
20971520 sectors of 512 bytes
**************************
vbd 51728 is hd1
******************* BLKFRONT for device/vbd/51728 **********


backend at /local/domain/0/backend/vbd/87/51728
Failed to read /local/domain/0/backend/vbd/87/51728/feature-flush-cache.
1056768 sectors of 512 bytes
**************************

<GRUB MENU>

  Booting command-list

root  (hd0)
 Filesystem type is ext2fs, using whole disk
kernel  /boot/vmlinuz-2.6.36.3-tdc root=/dev/xvda ro earlyprintk=xen

close blk: backend at /local/domain/0/backend/vbd/87/51712

close blk: backend at /local/domain/0/backend/vbd/87/51728

(early) Linux version 2.6.36.3-tdc (root@thedarkcitadel.com) (gcc version 4.4.5 (Debian 4.4.5-10) ) #1 SMP Wed Jan 19 17:45:10 UTC 2011
(early) Command line: root=/dev/xvda ro earlyprintk=xen
(early) released 0 pages of unused memory
(early) BIOS-provided physical RAM map:
(early)  Xen: 0000000000000000 - 00000000000a0000 (usable)
(early)  Xen: 00000000000a0000 - 0000000000100000 (reserved)
(early)  Xen: 0000000000100000 - 0000000020000000 (usable)
(early) bootconsole [xenboot0] enabled
(early) NX (Execute Disable) protection: active
(early) DMI not present or invalid.
(early) last_pfn = 0x20000 max_arch_pfn = 0x400000000
(early) init_memory_mapping: 0000000000000000-0000000020000000
(early) Zone PFN ranges:
(early)   DMA      (early) 0x00000001 -> 0x00001000
(early)   DMA32    (early) 0x00001000 -> 0x00100000
(early)   Normal   (early) empty
(early) Movable zone start PFN for each node
(early) early_node_map[2] active PFN ranges
(early)     0: 0x00000001 -> 0x000000a0
(early)     0: 0x00000100 -> 0x00020000
(early) SMP: Allowing 4 CPUs, 0 hotplug CPUs
(early) No local APIC present
(early) APIC: disable apic facility
(early) APIC: switched to apic NOOP
(early) Allocating PCI resources starting at 20000000 (gap: 20000000:e0000000)
(early) Booting paravirtualized kernel on Xen
(early) Xen version: 3.4.1 (preserve-AD)


As pointed out above the only differences I saw was that 2.6.37 seems to think there's 8 more megs of memory it can address.
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OverlordQ
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PostPosted: Wed Feb 16, 2011 6:26 pm 
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Joined: Sat Jun 05, 2004 12:49 am
Posts: 333
So 2.6.38-rc5 x86 based on 2.6.37-linode30 seems to boot fine, now trying the same thing under x64


Edit: Seems some set of flags that get set when switching to x64 break it, cant seem to figure out which one.
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