Package: linux-image-2.6.18-5-xen-amd64
Version: 2.6.18.dfsg.1-13etch4
Severity: normal

Using swiotlb=force panics the kernel reaaaaaly quick:
Bootdata ok (command line is root=/dev/sda1 ro swiotlb=force)
Linux version 2.6.18-5-xen-amd64 (Debian 2.6.18.dfsg.1-13etch4)
(dannf@debian.org) (gcc version 4.1.2 20061115 (prerelease) (Debian
4.1.1-21)) #1 SMP Tue Oct 2 21:48:12 UTC 2007
BIOS-provided physical RAM map:
Xen: 0000000000000000 - 0000000035a00000 (usable)
No mptable found.
Built 1 zonelists. Total pages: 219648
Kernel command line: root=/dev/sda1 ro swiotlb=force
Initializing CPU#0
PID hash table entries: 4096 (order: 12, 32768 bytes)
Xen reported: 1800.061 MHz processor.
Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes)
Inode-cache hash table entries: 65536 (order: 7, 524288 bytes)
----------- [cut here ] --------- [please bite here ] ---------
Kernel BUG at lib/../arch/i386/kernel/swiotlb.c:162
invalid opcode: 0000 [1] SMP
CPU 0
Modules linked in:
Pid: 0, comm: swapper Not tainted 2.6.18-5-xen-amd64 #1
RIP: e030:[] []
swiotlb_init_with_default_size+0xa0/0x19e
RSP: e02b:ffffffff804dbf40 EFLAGS: 00010282
RAX: 00000000fffffff4 RBX: 0000000000000000 RCX: 0000000000000006
RDX: ffffffffff578000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000004000000 R08: 0000000000001000 R09: ffffffff80522040
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffffffff804c4000(0000)
knlGS:0000000000000000
CS: e033 DS: 0000 ES: 0000
Process swapper (pid: 0, threadinfo ffffffff804da000, task
ffffffff8044bce0)
Stack: 0000000000000000 0000000000000800 0000000000000000
ffffffff8026e280
0000000000000000 ffffffff804ecf2a 0000000000000000 0000000000000800
0000000000000000 0000000000000000
Call Trace:
[] pci_swiotlb_init+0x9/0x2d
[] mem_init+0x5e/0x233
[] start_kernel+0x189/0x21a
[] _sinittext+0x20d/0x213


Code: 0f 0b 68 e1 36 41 80 c2 a2 00 48 83 eb 80 48 8b 05 bb 20 24
RIP []
swiotlb_init_with_default_size+0xa0/0x19e
RSP
<0>Kernel panic - not syncing: Attempted to kill the idle task!

I was hoping this would fix the problem that usblp cannot allocate write
buffers for an USB connected printer.
But alas, this doesn't even produce a working domU.

-- System Information:
Debian Release: 4.0
APT prefers stable
APT policy: (990, 'stable')
Architecture: amd64 (x86_64)
Shell: /bin/sh linked to /bin/bash
Kernel: Linux 2.6.18-5-xen-amd64
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)

Versions of packages linux-image-2.6.18-5-xen-amd64 depends on:
ii e2fsprog 1.39+1.40-WIP-2006.11.14+dfsg-2 ext2 file system utilities and lib
ii initramf 0.85h tools for generating an initramfs
ii linux-mo 2.6.18.dfsg.1-13etch4 Linux 2.6.18 modules on AMD64

linux-image-2.6.18-5-xen-amd64 recommends no packages.

-- no debconf information



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