Hi there,
I've been curious enough to try 2.6.20-rc5 with nfs4/kerberos.
It was working fine before. I was using 2.6.18.1 on the client and
2.6.20-rc3-git4 on server and today i tried 2.6.20-rc5 on both client
and server. (both running up to date debian/sid)
Trying to mount a nfs4 or nfs3 share with krb5 (did try with krb5 and
krb5p) produces this oops on the client side:
(each time I tried i got the same oops)
------------[ cut here ]------------
kernel BUG at net/sunrpc/sched.c:902!
invalid opcode: 0000 [#1]
PREEMPT
Modules linked in: rpcsec_gss_spkm3 rfcomm l2cap bluetooth nfsd exportfs nsc_irc
c tun ipv6 dm_snapshot dm_mirror dm_mod eeprom i2c_isa eth1394 usbhid snd_intel8
x0 snd_ac97_codec ac97_bus snd_pcm_oss snd_pcm snd_mixer_oss snd_seq_oss snd_seq
_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device ohci1394 i
eee1394 ipw2200 snd ieee80211 ieee80211_crypt i2c_i801 psmouse ide_cd r8169 rtc
irda ehci_hcd uhci_hcd serio_raw i2c_core cdrom snd_page_alloc usbcore evdev crc
_ccitt
CPU: 0
EIP: 0060:[<c03fcb1f>] Not tainted VLI
EFLAGS: 00210297 (2.6.20-rc5 #3)
EIP is at rpc_release_task+0x8f/0xc0
eax: f7e40c80 ebx: f7e40c80 ecx: f51eaac0 edx: c03fcc80
esi: fffffff3 edi: f6f21c40 ebp: f6f21bf0 esp: f6f21be4
ds: 007b es: 007b ss: 0068
Process mount (pid: 4286, ti=f6f20000 task=f6c52030 task.ti=f6f20000)
Stack: f6f21bf0 c03f7a77 f7e40c80 f6f21c10 c03f7c0d 00000000 fffffeff ffffffff
f6f21c7c f76f1180 00000000 f6f21c30 c01fe0d6 f6f21c40 7ffbfaef fffffffe
f6f21c7c f6de1a40 f76f1b80 f6f21c58 c01fe436 00000fff 00000000 c050a180
Call Trace:
[<c010411a>] show_trace_log_lvl+0x1a/0x30
[<c01041d9>] show_stack_log_lvl+0xa9/0xd0
[<c01043ef>] show_registers+0x1ef/0x360
[<c010466b>] die+0x10b/0x210
[<c01047f2>] do_trap+0x82/0xb0
[<c0105157>] do_invalid_op+0x97/0xb0
[<c0411864>] error_code+0x74/0x7c
[<c03f7c0d>] rpc_call_sync+0x8d/0xb0
[<c01fe0d6>] nfs3_rpc_wrapper+0x46/0x70
[<c01fe436>] nfs3_proc_getattr+0x46/0x80
[<c01ed7ff>] nfs_create_server+0x2cf/0x520
[<c01f584d>] nfs_get_sb+0xbd/0x580
[<c016b530>] vfs_kern_mount+0x40/0x90
[<c016b5d6>] do_kern_mount+0x36/0x50
[<c018142e>] do_mount+0x24e/0x690
[<c01818df>] sys_mount+0x6f/0xb0
[<c010314e>] sysenter_past_esp+0x5f/0x85
=======================
Code: d8 e8 86 fc ff ff c7 03 00 00 00 00 8d 43 68 0f ba 73 68 04 ba 04 00 00 00
e8 5e 1d d3 ff 89 d8 e8 f7 fe ff ff 83 c4 08 5b 5d c3 <0f> 0b eb fe 0f 0b eb fe
e8 84 2a 01 00 eb be 0f b7 80 94 00 00
EIP: [<c03fcb1f>] rpc_release_task+0x8f/0xc0 SS:ESP 0068:f6f21be4
( was a proto=udp mount )
I can provide more informations if needed, but i'm pretty it would be
reproducible easily.
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