Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Hi all,
I have x86_64 ubuntu and I untared drbd-8.0pre5 and tried compiling it.
I went good. When I insmod the drbd.ko it gave me following stack trace,
what could have went wrong?
I tested previous drbd pre releases. They work fine.
Unable to handle kernel NULL pointer dereference at 0000000000000000
RIP:
<ffffffff8801ad5b>{:drbd:cn_queue_add_callback+55}
PGD 3aa3e067 PUD 377c5067 PMD 0
Oops: 0002 [1]
CPU 0
Modules linked in: drbd
Pid: 5106, comm: insmod Not tainted 2.6.15 #1
RIP: 0010:[<ffffffff8801ad5b>]
<ffffffff8801ad5b>{:drbd:cn_queue_add_callback+55}
RSP: 0018:ffff810037085ea8 EFLAGS: 00010282
RAX: 00000000fffffff4 RBX: ffffffff88031524 RCX: 0000000000000000
RDX: ffffffff88024f72 RSI: ffffffff8803152c RDI: ffff81003a945d80
RBP: ffff810037085ed8 R08: 0000000000000004 R09: ffff81003aa16dc0
R10: 0000000000000286 R11: ffff81003aa16dc0 R12: 0000000000000000
R13: ffff81003a945d80 R14: 0000000000000000 R15: ffffffff88031524
FS: 00002aaaaaac1240(0000) GS:ffffffff806f8800(0000)
knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000000 CR3: 0000000037193000 CR4: 00000000000006e0
Process insmod (pid: 5106, threadinfo ffff810037084000, task
ffff81003abd4fe0)
Stack: 0000000000000004 ffffffff88031524 ffffffff88031680
ffffffff8058ae80
00002aaaaae00010 0000000000502010 ffff810037085ef8
ffffffff8801a991
ffffffff8058aeb0 ffffffff8058aeb0
Call Trace:<ffffffff8801a991>{:drbd:cn_add_callback+27}
<ffffffff880331c4>{:drbd:drbd_nl_init+32}
<ffffffff88033036>{:drbd:init_module+54}
<ffffffff8014673d>{sys_init_module+226}
<ffffffff8010e622>{system_call+126}
Code: 41 ff 04 24 4d 89 65 78 65 48 8b 04 25 10 00 00 00 81 80 44
RIP <ffffffff8801ad5b>{:drbd:cn_queue_add_callback+55} RSP
<ffff810037085ea8>
CR2: 0000000000000000
--
Milind
"The world is divided into one group: those who start counting at 0,
and those who don't."