Oops: rpc.nfsd (nfs-kernel-server) and 2.5.67 / Alpha

From: Christian (evil@g-house.de)
Date: Tue Apr 15 2003 - 18:38:01 EST


hi,

recently i had compiling problems with 2.5.67 on alpha. after applying
the patch from Måns Rullgård ([PATCH] Fix cond_syscall macro on Alpha),
compiling was fine and booting 2.5.67 also.
but now the nfs-kernel-server oopses. putting the Oops in a file,
ksymoops gives:

----------------
lila:~# ksymoops -m /boot/2.5/System.map -K rpc.nfsd.oops
ksymoops 2.4.8 on alpha 2.5.67. Options used
      -V (default)
      -K (specified)
      -l /proc/modules (default)
      -o /lib/modules/2.5.67/ (default)
      -m /boot/2.5/System.map (specified)

No modules in ksyms, skipping objects
No ksyms, skipping lsmod
Apr 16 01:14:36 lila kernel: Unable to handle kernel paging request at
virtual address 2834362d657a6973
Apr 16 01:14:36 lila kernel: rpc.nfsd(15103): Oops 0
Apr 16 01:14:36 lila kernel: pc = [<fffffc0000314748>] ra =
[<fffffc0000312ec0>] ps = 0007 Not tainted
Using defaults from ksymoops -t elf64-alpha -a alpha
Apr 16 01:14:36 lila kernel: v0 = 0000000000000000 t0 =
0000000000000000 t1 = fffffc0000314744
Apr 16 01:14:36 lila kernel: t2 = fffffc0000560848 t3 =
fffffc000055fba0 t4 = 0000000000000001
Apr 16 01:14:36 lila kernel: t5 = 2834362d657a6973 t6 =
000000000000001c t7 = fffffc00010a0000
Apr 16 01:14:36 lila kernel: s0 = 0000000000000000 s1 =
fffffc000034e0d0 s2 = 0000000000000000
Apr 16 01:14:36 lila kernel: s3 = 000000011ffff3e4 s4 =
0000000000000000 s5 = fffffc00026fe000
Apr 16 01:14:36 lila kernel: s6 = 000000011fff9340
Apr 16 01:14:36 lila kernel: a0 = 2834362d657a6973 a1 =
0000000000000028 a2 = 0000000000000001
Apr 16 01:14:36 lila kernel: a3 = 0000000000000028 a4 =
0000000000000001 a5 = 0000000000000000
Apr 16 01:14:36 lila kernel: t8 = 0000000000000000 t9 =
fffffc0000540848 t10= fffffc0003ff2f88
Apr 16 01:14:36 lila kernel: t11= fffffc00005c3010 pv =
fffffc0000314300 at = fffffffc002e6b84
Apr 16 01:14:36 lila kernel: gp = fffffc0000560848 sp = fffffc00010a3cd8
Apr 16 01:14:36 lila kernel: Trace:fffffc0000312ec0 fffffc0000379408
fffffc000034e050 fffffc0000379b78 fffffc000034e0d4 fffffc0000397e3c
fffffc0000313134 fffffc0000313090
Apr 16 01:14:36 lila kernel: Code: 3c900001 3cb00000 47f60401
e43fff1d c3ffff21 47ff0401 <2cb00000> 2cf00003

>>RA; fffffc0000312ec0 <entUna+90/110>

>>PC; fffffc0000314748 <do_entUna+448/580> <=====

Trace; fffffc0000312ec0 <entUna+90/110>
Trace; fffffc0000379408 <do_lookup+48/120>
Trace; fffffc000034e050 <kmalloc+0/d0>
Trace; fffffc0000379b78 <link_path_walk+698/b10>
Trace; fffffc000034e0d4 <kmalloc+84/d0>
Trace; fffffc0000397e3c <sys_nfsservctl+10c/1a0>
Trace; fffffc0000313134 <entSys+a4/c0>
Trace; fffffc0000313090 <entSys+0/c0>

Code; fffffc0000314730 <do_entUna+430/580>
0000000000000000 <_PC>:
Code; fffffc0000314730 <do_entUna+430/580>
    0: 01 00 90 3c stq_u t3,1(a0)
Code; fffffc0000314734 <do_entUna+434/580>
    4: 00 00 b0 3c stq_u t4,0(a0)
Code; fffffc0000314738 <do_entUna+438/580>
    8: 01 04 f6 47 mov t8,t0
Code; fffffc000031473c <do_entUna+43c/580>
    c: 1d ff 3f e4 beq t0,fffffffffffffc84 <_PC+0xfffffffffffffc84>
Code; fffffc0000314740 <do_entUna+440/580>
   10: 21 ff ff c3 br fffffffffffffc98 <_PC+0xfffffffffffffc98>
Code; fffffc0000314744 <do_entUna+444/580>
   14: 01 04 ff 47 clr t0
Code; fffffc0000314748 <do_entUna+448/580> <=====
   18: 00 00 b0 2c ldq_u t4,0(a0) <=====
Code; fffffc000031474c <do_entUna+44c/580>
   1c: 03 00 f0 2c ldq_u t6,3(a0)

lila:~#
----------------

yes, i specified -K because /proc/ksyms is not available in 2.5.67. i
have heard System.map should also do.

machine is AlphaStation 255/233 EV45 (Avanti), glibc-2.3.1, gcc-3.2.3,
nfs-kernel-server 1.0.3-1 (Debian).

Thank you for comments,
Christian.

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