[vdr] Re: FIX: av7110 driver unusable after 'dvb-ttpci: warning: timeout waiting in BlitBitmap()'

[Soeren Sonnenburg <vdr-ml@nn7.de>]

On Tue, 14 Dec 2004 20:07:23 +0000, Oliver Endriss wrote:

> FYI, another bug has been fixed:
> Under heavy load the bitmap transfer could be aborted by the driver due
> to a timeout. In this case the ARM would not process OSD commands
> anymore, and the driver must be reloaded.
> 
> To take advantage of the fix, you need firmware 261d Version 1.0rc5 
> or later. It can be downloaded from
> http://www.suse.de/~werner/test_av-1.0rc5.tar.bz2
> 
> The fix is in
> - dvb-kernel HEAD
> - dvb-kernel linux_2_4 branch and
> - DVB HEAD.
> 

hmmhh the CVS HEAD driver is only oopsing for me...

EIP is at dvb_frontend_start+0x23/0x110 [dvb_core]
eax: 00000000   ebx: 00000000   ecx: 00000000   edx: f7e5b8e0
esi: c1d08afc   edi: c1d08afc   ebp: 00000000   esp: f3545ebc
ds: 007b   es: 007b   ss: 0068
Process vdr (pid: 7118, threadinfo=f3544000 task=f3467560)
Stack: c015d54c 0000002c f5c2fa28 00000000 f3589a60 c1d08afc f9aaaa23 c1d08afc 
       f3589a60 f9ab3380 f3589a60 f5c2fa28 00000000 f9aa2125 f5c2fa28 f3589a60 
       f64c7960 00000000 f9aa2070 f5c2fa28 c0159838 f5c2fa28 f3589a60 00000803 
Call Trace:
 [<c015d54c>] vfs_permission+0x7c/0x120
 [<f9aaaa23>] dvb_frontend_open+0x63/0xb0 [dvb_core]
 [<f9aa2125>] dvb_device_open+0xb5/0x120 [dvb_core]
 [<f9aa2070>] dvb_device_open+0x0/0x120 [dvb_core]
 [<c0159838>] chrdev_open+0xa8/0x140
 [<c0150435>] dentry_open+0x115/0x1c0
 [<c0150318>] filp_open+0x68/0x70
 [<c025e730>] kobject_release+0x0/0x10
 [<c0150513>] get_unused_fd+0x33/0xc0
 [<c0150639>] sys_open+0x49/0x90
 [<c010403b>] syscall_call+0x7/0xb
Code: fe ff ff 90 8d 74 26 00 83 ec 18 a1 10 40 ab f9 89 74 24 10 89 5c 24 0c 89 7c 24 14 8b 74 24 1c 85 c0 8b 5e 0c 0f 85 d4 00 00 00 <8b> bb ac 01 00 00 85 ff 74 26 8b 8b dc 01 00 00 85 c9 75 14 31 
 <1>Unable to handle kernel NULL pointer dereference at virtual address 000001ac
 printing eip:
f9aaa1e3

Soeren