Messages in this thread |  | | Date | Sun, 25 May 2003 13:27:19 -0700 | From | Ulrich Drepper <> | Subject | oops with bk kernel as of 2003-05-25T13:00:00-07 |
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I get an oops at startup time:
Unable to handle kernel NULL pointer dereference at virtual address 000003fc printing eip: c0226e77 *pde = 00000000 Oops: 0000 [#1] CPU: 0 EIP: 0060:[<c0226e77>] Not tainted EFLAGS: 00010246 EIP is at kobj_map+0x9b/0x137 eax: cffbdf40 ebx: 00002400 ecx: cffbe6dc edx: 00000000 esi: 00000001 edi: 00000100 ebp: 00000024 esp: c1297f3c ds: 007b es: 007b ss: 0068 Process swapper (pid: 1, threadinfo=c1296000 task=c1295900) Stack: 0000001c 000000d0 00000001 cffbdf40 00002400 cffbdf48 cffbe6a0 c0157a4e 00000000 00002400 00000100 00000000 c01579c8 c01579cd cffbdf40 cffbdf40 00000001 c01575d1 cffbdf40 00002400 00000100 c0316117 c03cdea4 00000000 Call Trace: [<c0157a4e>] cdev_add+0x63/0x65 [<c01579c8>] exact_match+0x0/0x5 [<c01579cd>] exact_lock+0x0/0x1e [<c01575d1>] register_chrdev+0xc6/0x10f [<c039ec53>] init_netlink+0x1f/0x58 [<c039ec2e>] netlink_proto_init+0x47/0x4d [<c0382880>] do_initcalls+0x27/0x93 [<c012ddc3>] init_workqueues+0xf/0x26 [<c01050a8>] init+0x4c/0x1a8 [<c010505c>] init+0x0/0x1a8 [<c0108a15>] kernel_thread_helper+0x5/0xb
I looked at the code and the problem is that cdev_map == NULL when cdev_add is called. cdev_map is initialized in a constructor. Maybe the wrong order or a race...
- -- - --------------. ,-. 444 Castro Street Ulrich Drepper \ ,-----------------' \ Mountain View, CA 94041 USA Red Hat `--' drepper at redhat.com `--------------------------- -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (GNU/Linux)
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