Re: [Xen-devel] xen kernel 2.6.18 bug with a d-link DFE 580TX - pci hide

[Michael Kapp <tquarkk@xxxxxxxxxx>]

Keir Fraser wrote:
> On 26/10/08 08:40, "Michael Kapp" <tquarkk@xxxxxxxxxx> wrote:
> 
>> Keir Fraser wrote:
>>> On 25/10/08 21:05, "Michael Kapp" <tquarkk@xxxxxxxxxx> wrote:
>>>
>>>> ----------- [cut here ] --------- [please bite here ] ---------
>>>> Kernel BUG at arch/x86_64/kernel/../../i386/kernel/pci-dma-xen.c:377
>>> What's at line 377 in that source file in your kernel source tree?
>> See attachment of the specific part from pci-dma-xen.c.
> 
> Add swiotlb=force to your domain's kernel command line.

I set swiotlb=force in the domU conf, that doesn't fix it - also with
noirqdebug.

Michael

----------- [cut here ] --------- [please bite here ] ---------
Kernel BUG at arch/x86_64/kernel/../../i386/kernel/pci-dma-xen.c:377
invalid opcode: 0000 [1] SMP
CPU 0
Modules linked in: sundance
Pid: 3697, comm: ip Not tainted 2.6.18.8-U #1
RIP: e030:[<ffffffff81010bf1>]  [<ffffffff81010bf1>] dma_map_single+0x15a/0x1aa
RSP: e02b:ffff88000dba3c78  EFLAGS: 00010292
RAX: 000000000000002f RBX: 00000000b4858a72 RCX: ffff88000dba2000
RDX: ffffffffff5fd000 RSI: 0000000000000001 RDI: ffffffff81690880
RBP: ffff88000ded0a72 R08: ffffffff81690888 R09: 0000000000002a4d
R10: 0000000000000002 R11: 0000000000000000 R12: 0000000000000600
R13: ffff880001fccc90 R14: 0000000000000000 R15: ffff88000e832000
FS:  0000000000000000(0000) GS:ffffffff8178f000(0063) knlGS:0000000000000000
CS:  e033 DS: 002b ES: 002b
Process ip (pid: 3697, threadinfo ffff88000dba2000, task ffff88000f962800)
Stack:  ffff88000e832500 ffff88000e832510 ffff88000e832500 ffff88000e21f000
 0000000000000000 ffffffff880022a0 00000009f308c122 0000000000000000
 0000000000000000 000000000001e480 00000000816971d0 ffffffff8105a335
Call Trace:
 [<ffffffff880022a0>] :sundance:netdev_open+0x1aa/0x48d
 [<ffffffff8105a335>] get_page_from_freelist+0x9c/0x47f
 [<ffffffff81429677>] dev_open+0x2d/0x6c
 [<ffffffff8142761a>] dev_change_flags+0x5c/0x11b
 [<ffffffff8148127f>] devinet_ioctl+0x217/0x598
 [<ffffffff810587a5>] filemap_nopage+0x187/0x316
 [<ffffffff8141e10b>] sock_ioctl+0x1b1/0x1d6
 [<ffffffff8108b8cd>] do_ioctl+0x21/0x6b
 [<ffffffff8108bb54>] vfs_ioctl+0x23d/0x256
 [<ffffffff8108bbc6>] sys_ioctl+0x59/0x7b
 [<ffffffff810a5438>] dev_ifsioc+0xd1/0x1f4
 [<ffffffff8107870d>] fd_install+0x25/0x5f
 [<ffffffff810a384b>] compat_sys_ioctl+0x26e/0x2b2
 [<ffffffff8101b05e>] sysenter_do_call+0x1b/0x25


Code: 0f 0b 68 9b 98 5a 81 c2 79 01 4d 85 ed 74 11 49 8b 85 f0 01
RIP  [<ffffffff81010bf1>] dma_map_single+0x15a/0x1aa
 RSP <ffff88000dba3c78>
 /lib/rcscripts/net/iproute2.sh: line 7:  3697 Segmentation fault      LC_ALL=C 
/sbin/ip "$@"

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