- From: Ian Abbott <abbotti_at_mev.co.uk>
- Date: Wed, 20 Sep 2006 10:28:54 +0100
On 19/09/2006 16:06, Marcel Boehm wrote: > Hello, > > I installed RTAI 3.4 and comedi-0.7.73 and also the CVS snapshot on a system > running Suse 10.1. > When I trie to load the comedi modul I get a segmentation fault.. > Here is the dmesg output > > I-pipe: Domain RTAI registered. > RTAI[hal]: <3.4> mounted over IPIPE-NOTHREADS 1.3-00. > RTAI[hal]: compiled with gcc version 4.1.0 (SUSE Linux). > RTAI[hal]: mounted (IPIPE-NOTHREADS, IMMEDIATE (INTERNAL IRQs VECTORED), > ISOL_CPUS_MASK: 0). > PIPELINE layers: > d1328400 9ac15d93 RTAI 200 > c02cad00 0 Linux 100 > RTAI[malloc]: vmalloced extent d135d000, size 2097152. > RTAI[malloc]: loaded (global heap size=2097152 bytes). > RTAI[sched]: loaded (IMMEDIATE, UP, USER/KERNEL SPACE<with RTAI TASKs>: ). > RTAI[sched]: hard timer type/freq = APIC/16746500(Hz); default timing mode is > periodic; linear ordering of timed lists. > RTAI[sched]: Linux timer freq = 250 (Hz), CPU freq = 1741723000 hz. > RTAI[sched]: timer setup = 999 ns, resched latency = 2944 ns. > comedi: version 0.7.73 - David Schleef <ds_at_schleef.org> > Unable to handle kernel NULL pointer dereference at virtual address 00000000 > printing eip: > c01ab367 > *pde = 00000000 > Oops: 0000 [#1] > Modules linked in: comedi rtai_sched rtai_hal xt_pkttype ipt_LOG xt_limit > snd_pcm_oss snd_mixer_oss snd_seq af_packet edd button battery ac ip6t_REJECT > xt_tcpudp ipt_REJECT xt_state iptable_mangle iptable_nat ip_nat > iptable_filter ip6table_mangle ip_conntrack nfnetlink ip_tables > ip6table_filter ip6_tables x_tables ipv6 nls_utf8 ntfs loop dm_mod shpchp > pci_hotplug snd_via82xx gameport snd_ac97_codec snd_ac97_bus snd_pcm > snd_timer snd_page_alloc snd_mpu401_uart i2c_viapro snd_rawmidi i2c_core > snd_seq_device via_agp agpgart snd ohci1394 via_ircc 8139too ieee1394 mii > soundcore ehci_hcd uhci_hcd usbcore irda ide_cd crc_ccitt cdrom lp parport_pc > ppdev parport reiserfs fan thermal processor via82cxxx ide_disk ide_core > CPU: 0 > EIP: 0060:[<c01ab367>] Not tainted VLI > EFLAGS: 00010216 (2.6.16.13-adeos #1) > EIP is at vsnprintf+0x442/0x473 > eax: 00000000 ebx: cd7eddc0 ecx: 00000000 edx: 00000014 > esi: cd7ede30 edi: ca2e3e48 ebp: d133b2c8 esp: ca2e3de8 > ds: 007b es: 007b ss: 0068 > Process modprobe (pid: 3903, threadinfo=ca2e2000 task=cf59d560) > Stack: <0>c0299374 c014b9c6 cd7ede43 c9d8a800 cd7edec0 cd7eddc0 fffffff4 > cd7edec0 > d133b2c8 c0207041 cd7ede30 00000014 00000000 ca2e3e48 ca2e3e48 00000001 > c9d8a800 cfc35d80 d12ee112 cd7edec0 00000000 00000000 06200000 00000000 > Call Trace: > [<c014b9c6>] __kmalloc+0x92/0x9d > [<c0207041>] class_device_create+0x6f/0x97 > [<d12ee112>] comedi_init+0x112/0x127 [comedi] > [<c012d172>] sys_init_module+0x12c8/0x145d > [<c0127603>] autoremove_wake_function+0x0/0x3a > [<c01333c9>] audit_syscall_entry+0xf5/0x11a > [<c0105420>] do_syscall_trace+0x134/0x180 > [<c0102af8>] syscall_call+0x7/0xb > Code: f9 1f ff 74 24 10 ff 74 24 10 55 ff 74 24 10 51 52 8b 54 24 20 89 f0 89 > df e8 20 f5 ff ff 89 c6 83 c4 18 ff 44 24 30 8b 44 24 30 <8a> 00 84 c0 0f 85 > 39 fc ff ff 3b 74 24 08 77 05 c6 06 00 eb 0e > > > Any ideas what to do? > Thanks in advance, It's due to a clash between RTAI and Comedi solving the same compatibility problem in slightly different, incompatible ways. Please see this thread: http://thread.gmane.org/gmane.linux.comedi/5034/focus=5034 You can follow the advice in that thread (rename CLASS_DEVICE_CREATE to class_device_create in comedi/comedi_fops.c), or you can build the CVS version which renames the CLASS_DEVICE_CREATE macro to avoid the clash. -- -=( Ian Abbott _at_ MEV Ltd. E-mail: <abbotti_at_mev.co.uk> )=- -=( Tel: +44 (0)161 477 1898 FAX: +44 (0)161 718 3587 )=-
Received on 2006-09-20Z08:28:54