On Wed, Oct 10, 2007 at 08:42:52PM +0200, Jan Evert van Grootheest wrote:
> 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)
> (da...@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:[<ffffffff8030c7f8>] [<ffffffff8030c7f8>]
> 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:
> [<ffffffff8026e280>] pci_swiotlb_init+0x9/0x2d
> [<ffffffff804ecf2a>] mem_init+0x5e/0x233
> [<ffffffff804e36ea>] start_kernel+0x189/0x21a
> [<ffffffff804e320d>] _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 [<ffffffff8030c7f8>]
> swiotlb_init_with_default_size+0xa0/0x19e
> RSP <ffffffff804dbf40>
> <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.
Did you upgrade to Lenny in the mean time? If so, does the error
persist?
Cheers,
Moritz
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