I tried, below are my results:
====swiotlb=32,force====
[EMAIL PROTECTED] ~]# xm create -c slurp
Using config file "/etc/xen/slurp".
Going to boot Fedora Core (2.6.20-1.2944.fc6xen)
kernel: /vmlinuz-2.6.20-1.2944.fc6xen
initrd: /initrd-2.6.20-1.2944.fc6xen.img
Started domain slurp
Linux version 2.6.20-1.2944.fc6xen
([EMAIL PROTECTED]) (gcc version 4.1.1 20070105
(Red Hat 4.1.1-51)) #1 SMP Tue Apr 10 19:12:19 EDT 2007
BIOS-provided physical RAM map:
sanitize start
sanitize bail 0
copy_e820_map() start: 0000000000000000 size: 0000000030800000 end:
0000000030800000 type: 1
Xen: 0000000000000000 - 0000000030800000 (usable)
48MB HIGHMEM available.
727MB LOWMEM available.
NX (Execute Disable) protection: active
Zone PFN ranges:
DMA 0 -> 186366
Normal 186366 -> 186366
HighMem 186366 -> 198656
early_node_map[1] active PFN ranges
0: 0 -> 198656
ACPI in unprivileged domain disabled
Built 1 zonelists. Total pages: 197105
Kernel command line: ro root=/dev/VolGroup00/lv00_root console=xvc0
selinux=0 swiotlb=32,force
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Initializing CPU#0
CPU 0 irqstacks, hard=c0784000 soft=c0764000
PID hash table entries: 4096 (order: 12, 16384 bytes)
Xen reported: 2394.000 MHz processor.
Console: colour dummy device 80x25
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
------------[ cut here ]------------
kernel BUG at lib/../arch/i386/kernel/swiotlb.c:160!
invalid opcode: 0000 [#1]
SMP
last sysfs file:
Modules linked in:
CPU: 0
EIP: e019:[<c04e5848>] Not tainted VLI
EFLAGS: 00010282 (2.6.20-1.2944.fc6xen #1)
EIP is at swiotlb_init_with_default_size+0x8a/0x153
eax: fffffff4 ebx: 00000300 ecx: 00000040 edx: f5416000
esi: c075fae4 edi: 02000000 ebp: 00000020 esp: c0730f44
ds: e021 es: e021 ss: e021
Process swapper (pid: 0, ti=c0730000 task=c06e3280 task.ti=c0730000)
Stack: c074173e 00000000 ffffffff c161f000 c161f000 c075fae4 c0231b07 c073e778
00000042 00000004 c0730f88 00010000 c16a6200 00000004 00000010 c0742676
c069b0b1 c069c864 00010000 00000006 00040000 00c07c40 00000000 0301f100
Call Trace:
[<c074173e>] __alloc_bootmem_low+0x2b/0x67
[<c073e778>] mem_init+0x54/0x4d6
[<c0742676>] alloc_large_system_hash+0x18d/0x1b4
[<c0743153>] inode_init_early+0x49/0x72
[<c0734686>] start_kernel+0x22a/0x3c3
[<c073425a>] unknown_bootoption+0x0/0x202
=======================
Code: 59 7a f3 ff 83 c8 ff 40 83 f8 06 75 fa 89 d8 b9 1e 00 00 00 c1
e0 0b ba 06 00 00 00 03 05 54 65 7e c0 e8 2a 02 f3 ff 85 c0 74 04 <0f>
0b eb fe 83 eb 80 a1 58 65 7e c0 39 c3 72 c9 b9 00 00 00 01
EIP: [<c04e5848>] swiotlb_init_with_default_size+0x8a/0x153 SS:ESP
e021:c0730f44
<0>Kernel panic - not syncing: Attempted to kill the idle task!
====swiotlb=64,force====
Built 1 zonelists. Total pages: 197105
Kernel command line: ro root=/dev/VolGroup00/lv00_root console=xvc0
selinux=0 swiotlb=64,force
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Initializing CPU#0
CPU 0 irqstacks, hard=c0784000 soft=c0764000
PID hash table entries: 4096 (order: 12, 16384 bytes)
Xen reported: 2393.998 MHz processor.
Console: colour dummy device 80x25
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
------------[ cut here ]------------
kernel BUG at lib/../arch/i386/kernel/swiotlb.c:160!
invalid opcode: 0000 [#1]
SMP
last sysfs file:
Modules linked in:
CPU: 0
EIP: e019:[<c04e5848>] Not tainted VLI
EFLAGS: 00010282 (2.6.20-1.2944.fc6xen #1)
EIP is at swiotlb_init_with_default_size+0x8a/0x153
eax: fffffff4 ebx: 00000300 ecx: 00000040 edx: f5416000
esi: c075fae4 edi: 04000000 ebp: 00000020 esp: c0730f44
ds: e021 es: e021 ss: e021
Process swapper (pid: 0, ti=c0730000 task=c06e3280 task.ti=c0730000)
Stack: c074173e 00000000 ffffffff c161f000 c161f000 c075fae4 c0231b07 c073e778
00000042 00000004 c0730f88 00010000 c16a6200 00000004 00000010 c0742676
c069b0b1 c069c864 00010000 00000006 00040000 00c07c40 00000000 0301f100
Call Trace:
[<c074173e>] __alloc_bootmem_low+0x2b/0x67
[<c073e778>] mem_init+0x54/0x4d6
[<c0742676>] alloc_large_system_hash+0x18d/0x1b4
[<c0743153>] inode_init_early+0x49/0x72
[<c0734686>] start_kernel+0x22a/0x3c3
[<c073425a>] unknown_bootoption+0x0/0x202
=======================
Code: 59 7a f3 ff 83 c8 ff 40 83 f8 06 75 fa 89 d8 b9 1e 00 00 00 c1
e0 0b ba 06 00 00 00 03 05 54 65 7e c0 e8 2a 02 f3 ff 85 c0 74 04 <0f>
0b eb fe 83 eb 80 a1 58 65 7e c0 39 c3 72 c9 b9 00 00 00 01
EIP: [<c04e5848>] swiotlb_init_with_default_size+0x8a/0x153 SS:ESP
e021:c0730f44
<0>Kernel panic - not syncing: Attempted to kill the idle task!
====swiotlb=128,force====
Kernel command line: ro root=/dev/VolGroup00/lv00_root console=xvc0
selinux=0 swiotlb=128,force
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Initializing CPU#0
CPU 0 irqstacks, hard=c0784000 soft=c0764000
PID hash table entries: 4096 (order: 12, 16384 bytes)
Xen reported: 2393.998 MHz processor.
Console: colour dummy device 80x25
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
------------[ cut here ]------------
kernel BUG at lib/../arch/i386/kernel/swiotlb.c:160!
invalid opcode: 0000 [#1]
SMP
last sysfs file:
Modules linked in:
CPU: 0
EIP: e019:[<c04e5848>] Not tainted VLI
EFLAGS: 00010282 (2.6.20-1.2944.fc6xen #1)
EIP is at swiotlb_init_with_default_size+0x8a/0x153
eax: fffffff4 ebx: 00000300 ecx: 00000040 edx: f5416000
esi: c075fae4 edi: 08000000 ebp: 00000020 esp: c0730f44
ds: e021 es: e021 ss: e021
Process swapper (pid: 0, ti=c0730000 task=c06e3280 task.ti=c0730000)
Stack: c074173e 00000000 ffffffff c161f000 c161f000 c075fae4 c0231b07 c073e778
00000042 00000004 c0730f88 00010000 c16a6200 00000004 00000010 c0742676
c069b0b1 c069c864 00010000 00000006 00040000 00c07c40 00000000 0301f100
Call Trace:
[<c074173e>] __alloc_bootmem_low+0x2b/0x67
[<c073e778>] mem_init+0x54/0x4d6
[<c0742676>] alloc_large_system_hash+0x18d/0x1b4
[<c0743153>] inode_init_early+0x49/0x72
[<c0734686>] start_kernel+0x22a/0x3c3
[<c073425a>] unknown_bootoption+0x0/0x202
=======================
Code: 59 7a f3 ff 83 c8 ff 40 83 f8 06 75 fa 89 d8 b9 1e 00 00 00 c1
e0 0b ba 06 00 00 00 03 05 54 65 7e c0 e8 2a 02 f3 ff 85 c0 74 04 <0f>
0b eb fe 83 eb 80 a1 58 65 7e c0 39 c3 72 c9 b9 00 00 00 01
EIP: [<c04e5848>] swiotlb_init_with_default_size+0x8a/0x153 SS:ESP
e021:c0730f44
<0>Kernel panic - not syncing: Attempted to kill the idle task!
====swiotlb=256,force====
[EMAIL PROTECTED] ~]# xm create -c slurp
Using config file "/etc/xen/slurp".
Going to boot Fedora Core (2.6.20-1.2944.fc6xen)
kernel: /vmlinuz-2.6.20-1.2944.fc6xen
initrd: /initrd-2.6.20-1.2944.fc6xen.img
Started domain slurp
Linux version 2.6.20-1.2944.fc6xen
([EMAIL PROTECTED]) (gcc version 4.1.1 20070105
(Red Hat 4.1.1-51)) #1 SMP Tue Apr 10 19:12:19 EDT 2007
BIOS-provided physical RAM map:
sanitize start
sanitize bail 0
copy_e820_map() start: 0000000000000000 size: 0000000030800000 end:
0000000030800000 type: 1
Xen: 0000000000000000 - 0000000030800000 (usable)
48MB HIGHMEM available.
727MB LOWMEM available.
NX (Execute Disable) protection: active
Zone PFN ranges:
DMA 0 -> 186366
Normal 186366 -> 186366
HighMem 186366 -> 198656
early_node_map[1] active PFN ranges
0: 0 -> 198656
ACPI in unprivileged domain disabled
Built 1 zonelists. Total pages: 197105
Kernel command line: ro root=/dev/VolGroup00/lv00_root console=xvc0
selinux=0 swiotlb=256,force
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Initializing CPU#0
CPU 0 irqstacks, hard=c0784000 soft=c0764000
PID hash table entries: 4096 (order: 12, 16384 bytes)
Xen reported: 2393.998 MHz processor.
Console: colour dummy device 80x25
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
------------[ cut here ]------------
kernel BUG at lib/../arch/i386/kernel/swiotlb.c:160!
invalid opcode: 0000 [#1]
SMP
last sysfs file:
Modules linked in:
CPU: 0
EIP: e019:[<c04e5848>] Not tainted VLI
EFLAGS: 00010282 (2.6.20-1.2944.fc6xen #1)
EIP is at swiotlb_init_with_default_size+0x8a/0x153
eax: fffffff4 ebx: 00000300 ecx: 00000040 edx: f5416000
esi: c075fae4 edi: 10000000 ebp: 00000020 esp: c0730f44
ds: e021 es: e021 ss: e021
Process swapper (pid: 0, ti=c0730000 task=c06e3280 task.ti=c0730000)
Stack: c074173e 00000000 ffffffff c161f000 c161f000 c075fae4 c0231b07 c073e778
00000042 00000004 c0730f88 00010000 c16a6200 00000004 00000010 c0742676
c069b0b1 c069c864 00010000 00000006 00040000 00c07c40 00000000 0301f100
Call Trace:
[<c074173e>] __alloc_bootmem_low+0x2b/0x67
[<c073e778>] mem_init+0x54/0x4d6
[<c0742676>] alloc_large_system_hash+0x18d/0x1b4
[<c0743153>] inode_init_early+0x49/0x72
[<c0734686>] start_kernel+0x22a/0x3c3
[<c073425a>] unknown_bootoption+0x0/0x202
=======================
Code: 59 7a f3 ff 83 c8 ff 40 83 f8 06 75 fa 89 d8 b9 1e 00 00 00 c1
e0 0b ba 06 00 00 00 03 05 54 65 7e c0 e8 2a 02 f3 ff 85 c0 74 04 <0f>
0b eb fe 83 eb 80 a1 58 65 7e c0 39 c3 72 c9 b9 00 00 00 01
EIP: [<c04e5848>] swiotlb_init_with_default_size+0x8a/0x153 SS:ESP
e021:c0730f44
<0>Kernel panic - not syncing: Attempted to kill the idle task!
Thanks,
-guil
Quoting Ian Campbell <[EMAIL PROTECTED]>:
> On Mon, 2007-04-30 at 21:57 -0500, [EMAIL PROTECTED] wrote:
>> Fatal DMA error! Please use 'swiotlb=force'
>
> Did you try this?
>
> You could also try "swiotlb=NNN,force" where NNN is a number of
> megabytes. 64 is the default but if you have still trouble you could try
> increasing it by powers of two.
>
> Ian
>
> --
> Ian Campbell
>
> Your present plans will be successful.
>
>
> _______________________________________________
> ivtv-users mailing list
> [email protected]
> http://ivtvdriver.org/mailman/listinfo/ivtv-users
>
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