[uml-devel] SKAS0 test tree against 2.6.12

[uml-devel] SKAS0 test tree against 2.6.12

[Blaisorblade]

Ok, it's there. I've simply adapted the two SKAS0 patches for 2.6.12 
(backporting a cleanup and fixing some trivial rejects). More info at the web 
page.

Testing is welcome. In particular, any regression in SKAS3 mode should be 
prompty reported to me and Jeff, because they are not expected at all.

I'll add a simplified "proc_mm=0" switch (it's not the Bodo's patch because 
that is more intrusive and splits that further into proc_mm and faultinfo 
switches).

-- 
Inform me of my mistakes, so I can keep imitating Homer Simpson's "Doh!".
Paolo Giarrusso, aka Blaisorblade (Skype ID "PaoloGiarrusso", ICQ 215621894)
http://www.user-mode-linux.org/~blaisorblade

	

	
		
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Re: [uml-devel] SKAS0 test tree against 2.6.12

[Rob Landley]

On Wednesday 06 July 2005 13:11, Blaisorblade wrote:
> Ok, it's there. I've simply adapted the two SKAS0 patches for 2.6.12

I still haven't figured out how to get it to run in skas0 mode, but 2.6.12.2 
with your -skas0 patch still seems to work in tt mode.  (With the usual 
bootup idiosyncrasies, such as)...

VFS: Mounted root (hostfs filesystem).
idr_remove called for id=3 which is not allocated.
a08fb980:  [<a009af8f>] sub_remove+0xef/0x100
a08fb9e0:  [<a009afcf>] idr_remove+0x2f/0xc0
a08fba00:  [<a00a35e2>] release_dev+0x5d2/0x6f0
a08fba80:  [<a00a2aa5>] init_dev+0x1b5/0x5b0
a08fbad0:  [<a00a385c>] tty_open+0x15c/0x3a0
a08fbae0:  [<a009b69a>] kobject_get+0x1a/0x30
a08fbaf0:  [<a006333f>] cdev_get+0xf/0x20
a08fbb00:  [<a006350f>] exact_lock+0xf/0x20
a08fbb10:  [<a00ad0a0>] kobj_lookup+0xe0/0xf0
a08fbb38:  [<a00a3700>] tty_open+0x0/0x3a0
a08fbb40:  [<a006340e>] chrdev_open+0x9e/0x120
a08fbb70:  [<a00593da>] dentry_open+0x10a/0x190
a08fbb90:  [<a00592c8>] filp_open+0x68/0x70
a08fbbf0:  [<a0059609>] sys_open+0x49/0x90
a08fbc00:  [<a0011ef5>] change_signals+0x65/0x90
a08fbc10:  [<a00167a3>] execute_syscall_tt+0xa3/0xb0
a08fbc90:  [<a00167df>] syscall_handler_tt+0x2f/0x60
a08fbca0:  [<a0011f4f>] unblock_signals+0xf/0x20
a08fbcb0:  [<a001798b>] sig_handler_common_tt+0xbb/0x150
a08fbd10:  [<a001c337>] sig_handler+0x17/0x20
a08fbd20:  [<a00b9bd8>] __restore+0x0/0x8

But once past that, it gives me my shell prompt and I can mount /proc and 
confirm this is indeed UML running.  Haven't played with it much beyond that 
yet...

Rob

Rob


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Re: [uml-devel] SKAS0 test tree against 2.6.12

[Blaisorblade]

On Monday 11 July 2005 06:30, Rob Landley wrote:
> On Wednesday 06 July 2005 13:11, Blaisorblade wrote:
> > Ok, it's there. I've simply adapted the two SKAS0 patches for 2.6.12

> I still haven't figured out how to get it to run in skas0 mode, but
> 2.6.12.2 with your -skas0 patch still seems to work in tt mode.  (With the
> usual bootup idiosyncrasies, such as)...
Can you send me a binary + complete output, if possible with debug-info put 
inside, SKAS mode enabled and PT_PROXY enabled (for what it's worth)?
> VFS: Mounted root (hostfs filesystem).
> idr_remove called for id=3 which is not allocated.
> a08fb980:  [<a009af8f>] sub_remove+0xef/0x100
> a08fb9e0:  [<a009afcf>] idr_remove+0x2f/0xc0
> a08fba00:  [<a00a35e2>] release_dev+0x5d2/0x6f0
> a08fba80:  [<a00a2aa5>] init_dev+0x1b5/0x5b0
> a08fbad0:  [<a00a385c>] tty_open+0x15c/0x3a0
> a08fbae0:  [<a009b69a>] kobject_get+0x1a/0x30
> a08fbaf0:  [<a006333f>] cdev_get+0xf/0x20
> a08fbb00:  [<a006350f>] exact_lock+0xf/0x20
> a08fbb10:  [<a00ad0a0>] kobj_lookup+0xe0/0xf0
> a08fbb38:  [<a00a3700>] tty_open+0x0/0x3a0
> a08fbb40:  [<a006340e>] chrdev_open+0x9e/0x120
> a08fbb70:  [<a00593da>] dentry_open+0x10a/0x190
> a08fbb90:  [<a00592c8>] filp_open+0x68/0x70
> a08fbbf0:  [<a0059609>] sys_open+0x49/0x90
> a08fbc00:  [<a0011ef5>] change_signals+0x65/0x90
> a08fbc10:  [<a00167a3>] execute_syscall_tt+0xa3/0xb0
> a08fbc90:  [<a00167df>] syscall_handler_tt+0x2f/0x60
> a08fbca0:  [<a0011f4f>] unblock_signals+0xf/0x20
> a08fbcb0:  [<a001798b>] sig_handler_common_tt+0xbb/0x150
> a08fbd10:  [<a001c337>] sig_handler+0x17/0x20
> a08fbd20:  [<a00b9bd8>] __restore+0x0/0x8
>
> But once past that, it gives me my shell prompt and I can mount /proc and
> confirm this is indeed UML running.  Haven't played with it much beyond
> that yet...
>
> Rob
>
> Rob

-- 
Inform me of my mistakes, so I can keep imitating Homer Simpson's "Doh!".
Paolo Giarrusso, aka Blaisorblade (Skype ID "PaoloGiarrusso", ICQ 215621894)
http://www.user-mode-linux.org/~blaisorblade

		
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