Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Setup: Both servers HP DL380 G3, Fedora Core 6, Kernel 2.6.22 /etc/drbd.conf global { usage-count no; } common { syncer { rate 1M; } } resource drive2 { protocol C; startup { wfc-timeout 60; degr-wfc-timeout 60; } disk { on-io-error detach; } net { max-buffers 2048; ko-count 4; after-sb-0pri disconnect; rr-conflict disconnect; # #cram-hmac-alg sha1; # #shared-secret "WorldWarIFlyingAce"; } on wamperf1 { #PRIMARY device /dev/drdb0; disk /dev/cciss/c0d0p5; address 10.12.138.57:7791; meta-disk /dev/cciss/c0d0p6[0]; } on wamperf2 { #SECONDARY device /dev/drbd0; disk /dev/cciss/c0d0p5; address 10.12.138.62:7791; meta-disk /dev/cciss/c0d0p6[0]; } } The following shows up on the console of the primary a few seconds after bringing drbd up and making it primary drbd: no version for "struct_module" found: kernel tainted. drbd0: No usable activity log found. drbd0: Barriers not supported on meta data device - disabling BUG: unable to handle kernel NULL pointer dereference at virtual address 00000032 printing eip: c062e172 *pde = 3d5a1067 Oops: 0002 [#1] SMP last sysfs file: /block/drbd0/range Modules linked in: drbd(F)(U) ipv6 autofs4 sunrpc dm_mirror dm_mod video sbs button dock battery ac parport_pc lp parport floppy scb2_flash mtd chipreg map_funcs cpqphp i2c_piix4 i2c_core tg3 serio_raw ide_cd cdrom cciss sd_mod scsi_mod ext3 jbd mbcache ehci_hcd ohci_hcd uhci_hcd CPU: 0 EIP: 0060:[<c062e172>] Tainted: GF VLI EFLAGS: 00010046 (2.6.22.14-72.fc6 #1) EIP is at __sched_text_start+0x472/0x6ec eax: 00000002 ebx: 00000000 ecx: c1809a80 edx: 00001558 esi: f7df19a0 edi: f5525200 ebp: f552ef40 esp: f552eed8 ds: 007b es: 007b fs: 00d8 gs: 0000 ss: 0068 Process drbd_thread (pid: 2187, ti=f552e000 task=f7df1800 task.ti=f552e000) Stack: 00000000 07270e00 00000000 c1809ad0 f552e000 06f0a9b0 000001ef f7df1800 f7df19a0 c1809a80 00000000 00000002 f552ef80 f7df19b0 f552ef80 ffffffff c04ecf36 00001558 00000000 f7df1800 00000246 f53a51f4 f53a5000 f53a5000 Call Trace: [<c04ecf36>] vsnprintf+0x458/0x494 [<c0425493>] __cond_resched+0x25/0x3c [<c062e452>] cond_resched+0x26/0x31 [<f8b288d8>] drbd_send_cmd+0x54/0xcd [drbd] [<f8b2aa62>] drbd_thread_setup+0x0/0x14e [drbd] [<f8b1b8ed>] drbd_asender+0x9b/0x58f [drbd] [<c0421f3b>] complete+0x39/0x48 [<f8b2aa62>] drbd_thread_setup+0x0/0x14e [drbd] [<f8b2aaff>] drbd_thread_setup+0x9d/0x14e [drbd] [<f8b2aa62>] drbd_thread_setup+0x0/0x14e [drbd] [<c0405b6b>] kernel_thread_helper+0x7/0x10 ======================= Code: 83 51 4c 00 89 b9 d0 03 00 00 8b 75 b8 ff 06 8b 45 b4 8b 9f 14 01 00 00 8b 80 18 01 00 00 85 db 89 45 c4 75 32 89 87 18 01 00 00 <f0> ff 40 30 64 a1 08 30 7a c0 ba 80 50 7a c0 03 14 85 80 cc 75 EIP: [<c062e172>] __sched_text_start+0x472/0x6ec SS:ESP 0068:f552eed8 Any help would be appreciated. Alex ______________________________________________________________________ This message contains information which may be confidential and/or privileged. Unless you are the intended recipient (or authorized to receive for the intended recipient), you may not read, use, copy or disclose to anyone the message or any information contained in the message. If you have received the message in error, please advise the sender by reply e-mail and delete the message and any attachment(s) thereto without retaining any copies. ______________________________________________________________________