[DRBD-user] drbd 0.6.12 oops on RHEL3

[Wim Vandersmissen]

Hi,

I'm running drbd 0.6.12 on RHEL3 with kernel 2.4.21-15.ELsmp
orochimaru is running drbd on /dev/md1 (100gig software raid5), the other host
oldinverse is running drbd on /dev/sdb2 (100gig hardware raid5)

After a 5 hour syncing the 100gb (orochimaru primary) I formatted nb0, mounted
it and copied a few gigabytes on it. All was well  

Then I unmounted it, made orochimaru secondary, and oldinverse primary, mounted 
nb0 on oldinverse, and did a find on the mounted nb0. This resulted in 
"kernel: drbd0: [kjournald/1882] sock_sendmsg time expired, ko = 4294967265"
errors. And processes in D-state. So I ran "reboot", that gave me the attached
oops (painfully manually copied 

Any ideas ?

--Wim 


My drbd.conf

resource drbd0 {
 protocol = C
 fsckcmd = /bin/true 
 disk {
    do-panic
    disk-size=102438441k
 }  
 net {
   sync-nice   = -5 
   tl-size     = 6000 
   sync-min    = 4M
   sync-max    = 7M
 }
on orochimaru {
    device  = /dev/nb0 
    disk    = /dev/md1
    address = 10.33.1.215
    port    = 7788
}

on oldinverse {
   device  = /dev/nb0
   disk    = /dev/sdb1
   address = 10.33.1.216
   port    = 7788
}
}


CPU:    0
EIP:    0060:[<e08f7b5f>]       Not tainted
EFLAGS: 00010013

EIP is at tl_clear [drbd] 0x4f (2.4.21-15.ELsmp/i686)
eax: 0b61bc56   ebx: d70528d0   ecx: d7052920   edx: d7052000
esi: de709000   edi: 00000282   ebp: 00000000   esp: d25c9f4c
ds: 0068   es: 0068   ss: 0068
Process drbdd_0 (pid: 1582, stackpage=d25c9000)
Stack: e0907000 01a00000 0000000c 00000001 00000000 de709000 0000000a e08fc675
       de709000 00000000 00000001 00000000 02000000 de70916c 07000000 0000000a
       39000000 00002db2 f4e18400 00000000 00000300 00000000 01030000 dd282700
Call Trace:   [<e08fc675>] drbdd [drbd] 0x545 (0xd25c9f68)
[<e08fcd8a>] drbdd_init [drbd] 0x5a (0xd25c9fc0)
[<e0900982>] .rodata.str1.1 [drbd] 0x27e (0xd25c9fc8)
[<e08f7c49>] drbd_thread_setup [drbd] 0x29 (0xd25c9fe0)
[<e08f7c20>] drbd_thread_setup [drbd] 0x0 (0xd25c9fe8)
[<c010958d>] kernel_thread_helper [kernel] 0x5 (0xd25c9ff0)

Code: 8b 40 04 25 fe FF 00 00 3d 00 f2 00 00 0f 84 8e 00 00 00 c7

Kernel panic: Fatal exception