Hi, On Wed, 2007-01-24 at 12:35 +0100, Benoit DUFFAU wrote: > Le mercredi 24 janvier 2007 à 09:44 +0000, Steven Whitehouse a écrit : > > Hi, > > > > This problem (NFS readdirplus bug) should be fixed in the upstream > > kernel as well as FC-6. Its due to NFS' readdirplus calling the vfs stat > > function (gfs2_getattr) for the '.' directory from readdir's filldir > > callback. As a result it tried to lock the directory twice which > > triggers the recursive locking check. > > > > The URL of the fix is: > > http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=dcf3dd852f554bb0016aa23892596717cc123a26 > > > > Please let me know if that doesn't cure the problem, > > > > Hi, > > thank you for answering me so quickly !!! > > I patched my 2.6.19.2 kernel but this does not work. > > The kernel does not crash any longer (great ! :) ) but the export is now > impossible ! > > when i try to mount the exported directory i have the following error on > the client : > > client1:~# mount server1:/test /mnt -o defaults,udp,async,soft -t nfs > mount: server1:/test: can't read superblock > > i have one question : > > when i compile the patched kernel it says : > > fs/gfs2/ops_inode.c: In function « gfs2_getattr »: > fs/gfs2/ops_inode.c:1047: Warning : empty body in an if-statement > > are you sure with your code ?? : > > + if (unlock); > + gfs2_glock_dq_uninit(&gh); > > shouldn't it be : > > + if (unlock) > + gfs2_glock_dq_uninit(&gh); > > instead ??? > Yes, you are right it should be. I don't know how that stray ; got in there and I'll fix that now. > I completly don't understand what this piece of code is doing but i find > it strange to do a if (var); ... > > the problem is that even if i try to compile another kernel without > the ; after the if santance it crashes the same way before :( > > here again the kernel dump > > Jan 24 12:27:55 replica1 kernel: ------------[ cut here ]------------ > Jan 24 12:27:55 replica1 kernel: kernel BUG at fs/gfs2/glock.c:1193! > Jan 24 12:27:55 replica1 kernel: invalid opcode: 0000 [#1] > Jan 24 12:27:55 replica1 kernel: SMP > Jan 24 12:27:55 replica1 kernel: CPU: 1 > Jan 24 12:27:55 replica1 kernel: EIP: 0060:[add_to_queue+181/297] > Not tainted VLI > Jan 24 12:27:55 replica1 kernel: EFLAGS: 00010282 (2.6.19.2-grsec #5) > Jan 24 12:27:55 replica1 kernel: eax: 00000020 ebx: da62be68 ecx: > da62ba28 edx: c05f1c60 > Jan 24 12:27:55 replica1 kernel: esi: ddc422fc edi: da62ba88 ebp: > dafff000 esp: da62ba24 > Jan 24 12:27:55 replica1 kernel: ds: 0068 es: 007b ss: 0068 > Jan 24 12:27:55 replica1 kernel: Process nfsd (pid: 3123, ti=da62a000 > task=da81d560 task.ti=da62a000) > Jan 24 12:27:55 replica1 kernel: Stack: c05f1c60 00000002 00000001 > ddc422fc da62ba88 00000000 dafff000 c02aa65c > Jan 24 12:27:55 replica1 kernel: da62ba88 dab35514 da630194 > da62ba88 da6301b0 c02accfc da62ba88 00000003 > Jan 24 12:27:55 replica1 kernel: 00000000 da62ba88 00000000 > dd028600 dab35514 c02b9698 dab35514 00000001 > Jan 24 12:27:55 replica1 kernel: Call Trace: > The bit I really need to see is the next bit - i.e. the stack back trace. Was it identical to the last trace you posted? Steve. > Benoit > > +---------------------------------------------------------------------+ > Combining consulting and technology solutions offers enables Devoteam > to provide its customers with independent advice and effective solutions > that meet their strategic objectives (IT performance and optimisation) > in complementary areas: networks, systems infrastructure, security > and e-business applications. > Created in 1995, Devoteam achieved in 2005 a turnover of 199 million euros > and an operating margin of 7%. The group counts 2,400 employees through > sixteen countries in Europe, the Middle East and North Africa. > Listed on Euronext (Eurolist B compartment) since October 28, 1999. > Part of the Nexteconomy, CAC SMALL 90, IT CAC 50, SBF 250 index of > Euronext Paris > ISIN: FR 000007379 3, Reuters: DVTM.LM, Bloomberg: DEVO FP > +---------------------------------------------------------------------+ > -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
