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 ??? 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: 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
