On Thursday 28 Jul 2005 17:32, Michael Ditum wrote: > I've just has a chance to test the changes you made... unfortunately I > could not test the latest CVS version as I couldn't get 2.6.13 to boot > on my hardware... some problem with lvm... Instead I basically took > the changes you made to dvb_ca_en50221.c and put them into my source > tree which is fedora core 3's 2.6.12-1.1372 kernel. When I booted up > and run vlc I got the following error in /var/log/messages.... > > Jul 26 17:12:25 bloodhound kernel: Debug: sleeping function called > from invalid context at arch/i386/lib/usercopy.c:601 > Jul 26 17:12:25 bloodhound kernel: in_atomic():0, irqs_disabled():1 > Jul 26 17:12:25 bloodhound kernel: [<c011ed91>] __might_sleep+0x9d/0xae > Jul 26 17:12:25 bloodhound kernel: [<c01d2f11>] copy_to_user+0x18/0x5f > Jul 26 17:12:25 bloodhound kernel: [<e099f67b>] > dvb_ringbuffer_pkt_read+0xea/0x111 [dvb_core] > Jul 26 17:12:25 bloodhound kernel: [<e099b399>] > dvb_ca_en50221_io_read+0x18f/0x3ae [dvb_core] > Jul 26 17:12:25 bloodhound kernel: [<c0172415>] poll_freewait+0x34/0x3c > Jul 26 17:12:25 bloodhound kernel: [<c0160a9f>] vfs_read+0x106/0x108 > Jul 26 17:12:25 bloodhound kernel: [<c0160ce1>] sys_read+0x41/0x6a > Jul 26 17:12:25 bloodhound kernel: [<c0103fe9>] syscall_call+0x7/0xb > > I get one of these roughly every second. Do the changes you made > require more changes than the ones in dvb_ca_en50221.c? Arrrgh, I didn't realise copy_to_user called __might_sleep. OK, I've fixed the problems in the _irq_ handler. I'll sort out these ones next :) And yeah - you just need to copy dvb_ca_en50221.c for the changes for your card. > I then modified the kernel adding in my modifications and didn't get > any IRQ messages including the NMI releated one. I have noticed that > cat /proc/interrupts now shows... > > [root@bloodhound php]# cat /proc/interrupts > CPU0 CPU1 > 0: 155663 158340 IO-APIC-edge timer > 1: 6 4 IO-APIC-edge i8042 > 8: 1 0 IO-APIC-edge rtc > 9: 0 1 IO-APIC-level acpi > 12: 51 50 IO-APIC-edge i8042 > 15: 1186 1257 IO-APIC-edge ide1 > 169: 0 0 IO-APIC-level uhci_hcd:usb2 > 177: 4004 3309 IO-APIC-level ioc0 > 185: 17 13 IO-APIC-level ioc1 > 193: 18717 18 IO-APIC-level eth0 > 201: 0 0 IO-APIC-level saa7146 (0) > 209: 1890 843 IO-APIC-level saa7146 (1) > 217: 0 2 IO-APIC-level saa7146 (2) > 225: 0 0 IO-APIC-level ehci_hcd:usb1 > 233: 0 0 IO-APIC-level uhci_hcd:usb3 > NMI: 0 0 > LOC: 307139 307581 > ERR: 0 > MIS: 0
