Kernel Bug with 2.6.24-rc2-CITI_NFS4-ALL-1 in net/sunrpc/svc_xprt.c

[Le Rouzic]

hi,
Running as client RHEL5.1 Public Gold on a X86_64 bi-ways and
as server 2.6.24-rc2-CITI_NFS4_ALL-1 on a X86_64 bi-ways,
I get the following Oops on the server when on the client I run
in a infinite loop iozone with -U option:

while true
do
./iozone -+q 30 -ace -r 64 -i 0 -i 1 -i 2 -f /mnt/nosec/nfs4_gb -U 
/mnt/nosec
date
sleep 30
done

=============================================================================
Fedora Core release 6 (Zod)
Kernel 2.6.24-rc2-CITI_NFS4_ALL-1 on an x86_64

nfs4gb login: ------------[ cut here ]------------
kernel BUG at net/sunrpc/svc_xprt.c:323!
invalid opcode: 0000 [1] SMP
Entering kdb (current=0xffff8100031e6080, pid 3227) on processor 1 Oops: 
<NULL>
due to oops @ 0xffffffff805bfef1
     r15 = 0x0000000000001000      r14 = 0xffff810006cfc000
     r13 = 0xffff8100035363c0      r12 = 0xffff810004c30bc0
     rbp = 0xffff810007df4000      rbx = 0xffff810006994000
     r11 = 0xffff8100098c1d80      r10 = 0x0000000000007d2b
      r9 = 0x0000000000000004       r8 = 0xffff810004df9180
     rax = 0x0000000000041000      rcx = 0x0000000000000001
     rdx = 0x0000000000000000      rsi = 0x0000000000000001
     rdi = 0xffff810006994010 orig_rax = 0xffffffffffffffff
     rip = 0xffffffff805bfef1       cs = 0x0000000000000010
  eflags = 0x0000000000010203      rsp = 0xffff810007d73d90
      ss = 0x0000000000000018 &regs = 0xffff810007d73cf8
[1]kdb>
[1]kdb> bt
Stack traceback for pid 3227
0xffff8100031e6080     3227        2  1    1   R  0xffff8100031e63a0 *nfsd
rsp                rip                Function (args)
0xffff810007d73d78 0xffffffff805bfef1 svc_xprt_enqueue+0x19a 
(0xffff810006994000)
0xffff810007d73dc8 0xffffffff805b9198 svc_tcp_recvfrom+0x367 
(0xffff810006cfc000)
0xffff810007d73e48 0xffffffff805c0db8 svc_recv+0x62d 
(0xffff810006cfc000, 0xdbba0)
0xffff810007d73f08 0xffffffff803329db nfsd+0xdb (0xffff810006cfc000)
0xffff810007d73f48 0xffffffff8020cbf8 child_rip+0xa (invalid, invalid)
[1]kdb>

More at:
Bug:  http://bugzilla.linux-nfs.org/show_bug.cgi?id=155

Regards


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Name    : Aime Le Rouzic 
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E-Mail  : aime.le-rouzic at bull.net
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