[patch] VirtualBox-4.0.14 + FreeBSD/CURRENT + VIMAGE: crash on vm shutdown

[Bernhard Froehlich]

On 19.03.2012 20:48, Mikolaj Golub wrote:
> Hi,
>
> Here is a patch that fixes the issue I have been observing recently: 
> running
> on VIMAGE enabled kernel VirtualBox causes the kernel crash when vm
> is powered
> off:
>
> ng_unref_node(8b156880,0,1,101,0,...) at ng_unref_node+0x74
> ng_snd_item(8d060d40,0,8b0e18f0,0,0,...) at ng_snd_item+0x2a5
> ng_send_fn(8b156880,0,8b0e18f0,0,0,...) at ng_send_fn+0x35
> ng_rmnode_self(8b156880,89f840e0,8b0dbcc0,deec88cc,8b0d9ffa,...) at
> ng_rmnode_self+0x4a
> 
> vboxNetFltOsDeleteInstance(89f84010,89f84014,89f84010,deec88ec,8b0da0f4,...)
> at vboxNetFltOsDeleteInstance+0x63
> vboxNetFltRelease(89f84010,0,0,0,89f84014,...) at 
> vboxNetFltRelease+0x6a
> 
> vboxNetFltPortDisconnectAndRelease(89f84014,2710,87748bd4,87748bd4,deec8930,...)
> at vboxNetFltPortDisconnectAndRelease+0x64
> _end(8b15ed10,89f84210,877456b0,0,deec8990,...) at 0x8cffe057
> SUPR0ObjRelease(8b15ed10,89f4b810,deec89c8,deec89a0,0,...) at
> SUPR0ObjRelease+0x133
> _end(8b15eb90,898a0e10,877456b0,0,89f4b810,...) at 0x8cffe4bb
> 
> supdrvCleanupSession(8162bac0,89f4b810,89f4b810,deec89f4,8160e52f,...)
> at supdrvCleanupSession+0xef
> supdrvCloseSession(8162bac0,89f4b810,8ceecb18,deec8a18,8ceecaa0,...)
> at supdrvCloseSession+0x19
> VBoxDrvFreeBSDClose(89ee6c00,3,2000,8adcc5c0,8adcc5c0,...) at
> VBoxDrvFreeBSDClose+0x2f
> devfs_close(deec8a78,8ceecaa0,80400,80f8caac,133,...) at 
> devfs_close+0x2ca
> VOP_CLOSE_APV(81095960,deec8a78,80f8caac,133,2,...) at 
> VOP_CLOSE_APV+0xda
> vn_close(8ceecaa0,3,8b24b380,8adcc5c0,80f792e0,...) at vn_close+0x190
> vn_closefile(89f8cd58,8adcc5c0,0,89f8cd58,0,...) at vn_closefile+0xe4
> devfs_close_f(89f8cd58,8adcc5c0,0,0,89f8cd58,...) at 
> devfs_close_f+0x35
> 
> _fdrop(89f8cd58,8adcc5c0,0,deec8b80,0,8adcc670,81273398,810a7620,89e50c2c,79d,80f7401d,deec8b90,80a2f81e,89e50c2c,8,80f7401d,79d,0,89f8cd58)
> at _fdrop+0x43
> closef(89f8cd58,8adcc5c0,79d,79a,8adcc670,...) at closef+0x2b0
> fdfree(8adcc5c0,0,80f74dc6,107,deec8c18,...) at fdfree+0x3ea
> exit1(8adcc5c0,0,deec8d1c,80db7aee,8adcc5c0,...) at exit1+0x57a
> sys_sys_exit(8adcc5c0,deec8cec,80fd0bf8,80f53607,8adbf5c0,...) at
> sys_sys_exit+0x1d
> syscall(deec8d28) at syscall+0x2de
> Xint0x80_syscall() at Xint0x80_syscall+0x21

Sorry for the late response and thanks for the patch. Is this patch
still required for 4.1.8? My guess is yes but it would be great if you
could confirm that with the latest port.

Do you aggree that this patch is under MIT License so that I can push
it upstream?

-- 
Bernhard Froehlich
http://www.bluelife.at/