Messages in this thread | | | Date | Fri, 25 Jun 1999 12:44:42 -0400 (EDT) | From | Andrew Schretter <> | Subject | Re: nfsv3 client/solaris server troubles |
| |
Trond, I too had noticed the fall off in performance but was unable to pinpoint where it began. I recently tried 2.2.10 with 0.9.9.2 NFSv3 patches. The first time I tried running Bonnie on it, it locked the machine up hard. The second time, I got a kernel panic out of it ...
Unable to handle kernel NULL pointer dereference at virtual address 00000023 current->tss.cr3 = 00101000, %cr3 = 00101000 *pde = 00000000 Oops: 0000 CPU: 0 EIP: 0010:[<c014c615>] EFLAGS: 00010202 eax: 00000000 ebx: 00000023 ecx: ffffffea edx: cbcd3f60 esi: cbcd3f60 edi: cbcd3ec8 ebp: cbcd3f60 esp: cbcd3e94 ds: 0018 es: 0018 ss: 0018 Process rpciod (pid: 221, process nr: 13, stackpage=cbcd3000) Stack: 000000dd cee9719c 00001e17 c0148ebd cee9719c cbcd3f60 cbcd3ec8 c0000000 cbcd3f10 cf1de000 cdcb9ac0 47464544 cbcd2000 000000dd 00000000 00000000 00000000 00000000 d0840375 cee9719c cbcd3f60 00000000 cdcb9ac0 cf1de000 Call Trace: [<c0148ebd>] [<d0840375>] [<c014b548>] [<c014b500>] [<c014b574>] Code: 8b 13 83 fa 0b 0f 86 58 01 00 00 89 d8 2b 45 10 01 d0 39 45
This happened while writing to a mount from a solaris 2.6 machine with no options. It was mounted nfsv3 with 32768 rsize and wsize.
> Todd Chauvin <chauvin@cauchy.ee.washington.edu> writes: > > > Hi, > > > > I was wondering if anyone is successfully using the nfsv3 client patches with > > solaris 2.6/7 servers. Up until revision 0.9.4.3, performance (for my > <snip> > > > > As best as I can tell, the problem is related to the file net/sunrpc/xprt.c > > If I apply patch 0.9.9.1 to linux-2.2.10 and then clobber only xprt.c > > with the version from patch 0.9.4.3, the performance is restored. Using > > 'snoop' on solaris, it seems as though the linux client is flooding the > > network with UDP packets. In fact, to write 1 megabyte, snoop captures 10 > > times as many packets with recent versions of the nfsv3 patches as compared > > to version 0.9.4.3. > > Could you try patch 0.9.9.2? That should reduce the number of retries. > This is also the first version where the TCP stuff seems to work for > me (albeit slowly) without crashing under iozone. > > Cheers, > Trond > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.rutgers.edu > Please read the FAQ at http://www.tux.org/lkml/ >
Andrew Schretter Systems Programmer, Duke University Dept. of Mathematics (919) 660-2866
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
| |