Problem: Xen 3.3.1 with FreeBSD 8.0 RC1

[Carsten Heesch]

Athough I seem to be talking to myself here, I have good news for RC2!  
It works!
Just did an "freebsd-update -R 8.0-RC2 upgrade". Both GENERIC and  
XENHVM kernels work without any problems.

Maybe somebody else can chime in an confirm that, too? Probably good  
for the developers to see positive feedback, while 8.0-RELEASE is  
coming closer :-)


Cheers
Carsten


On 25 Oct 2009, at 00:31, Carsten Heesch wrote:

>
> I realised that it's still possible to use 8.0-BETA* as a target for  
> freebsd-update. So I investigated a bit further. For whatever it's  
> worth:
>
> The problems described earlier started with BETA-4.
>
> BETA-3 is fine with both GENERIC and XENHVM kernel, except that I  
> see this on the console and in dmesg every now and then (with both  
> kernels):
>
>
> lock order reversal:
> 1st 0xffffff8014810620 bufwait (bufwait) @ /usr/src/sys/kern/ 
> vfs_bio.c:2559
> 2nd 0xffffff00015a7c00 dirhash (dirhash) @ /usr/src/sys/ufs/ufs/ 
> ufs_dirhash.c:285
> KDB: stack backtrace:
> db_trace_self_wrapper() at db_trace_self_wrapper+0x2a
> _witness_debugger() at _witness_debugger+0x2e
> witness_checkorder() at witness_checkorder+0x81e
> _sx_xlock() at _sx_xlock+0x55
> ufsdirhash_acquire() at ufsdirhash_acquire+0x33
> ufsdirhash_add() at ufsdirhash_add+0x19
> ufs_direnter() at ufs_direnter+0x88b
> ufs_makeinode() at ufs_makeinode+0x31c
> VOP_CREATE_APV() at VOP_CREATE_APV+0x8d
> vn_open_cred() at vn_open_cred+0x423
> kern_openat() at kern_openat+0x179
> syscall() at syscall+0x1af
> Xfast_syscall() at Xfast_syscall+0xe1
> --- syscall (5, FreeBSD ELF64, open), rip = 0x800e32dfc, rsp =  
> 0x7fffffffe608, rbp = 0x1a4 ---
>
>
> I though this might be XENHVM kernel related, but it happens with  
> GENERIC kernel as well. Not sure if this is related to XEN at all.
>
>
>
> Cheers
> Carsten
>
>
>