On Fri, 2013-01-11 at 10:46 +-0800, Fengguang Wu wrote: +AD4- tree: git://git.linux-nfs.org/projects/trondmy/linux-nfs.git linux-next +AD4- commit: 51b63a538c54cb9c3b83c4d62572cf18da165cba +AFs-1/1+AF0- SUNRPC: Ensure we release the socket write lock if the rpc+AF8-task exits early +AD4- +AD4- +AFs- 106.308511+AF0- md: autorun ... +AD4- +AFs- 106.309477+AF0- md: ... autorun DONE. +AD4- +AFs- 107.923634+AF0- BUG: unable to handle kernel NULL pointer dereference at 0000000000000070 +AD4- +AFs- 107.926207+AF0- IP: +AFsAPA-ffffffff82a7c8ac+AD4AXQ- xprt+AF8-release+-0x24/0x1cb +AD4- +AFs- 107.927223+AF0- PGD 0 +AD4- +AFs- 107.927223+AF0- Oops: 0000 +AFsAIw-1+AF0- SMP DEBUG+AF8-PAGEALLOC +AD4- +AFs- 107.927223+AF0- Modules linked in: +AD4- +AFs- 107.927223+AF0- CPU 1 +AD4- +AFs- 107.927223+AF0- Pid: 1, comm: swapper/0 Not tainted 3.8.0-rc2-00187-gf958f23 +ACM-1651 Bochs Bochs +AD4- +AFs- 107.927223+AF0- RIP: 0010:+AFsAPA-ffffffff82a7c8ac+AD4AXQ- +AFsAPA-ffffffff82a7c8ac+AD4AXQ- xprt+AF8-release+-0x24/0x1cb +AD4- +AFs- 107.927223+AF0- RSP: 0000:ffff88001d831908 EFLAGS: 00010246 +AD4- +AFs- 107.927223+AF0- RAX: 0000000000000000 RBX: ffff88001bff1080 RCX: ffff88001f400000 +AD4- +AFs- 107.927223+AF0- RDX: 0000000000000002 RSI: 000000000000051c RDI: ffff88001bff1080 +AD4- +AFs- 107.927223+AF0- RBP: ffff88001d831938 R08: 000000000000051c R09: 0000000000000004 +AD4- +AFs- 107.927223+AF0- R10: 000000000000332e R11: ffff88001bff1080 R12: 0000000000000000 +AD4- +AFs- 107.927223+AF0- R13: ffff88001bff1080 R14: ffff880010008380 R15: 000000000000000c +AD4- +AFs- 107.927223+AF0- FS: 0000000000000000(0000) GS:ffff88001f400000(0000) knlGS:0000000000000000 +AD4- +AFs- 107.927223+AF0- CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b +AD4- +AFs- 107.927223+AF0- CR2: 0000000000000070 CR3: 0000000003c15000 CR4: 00000000000006e0 +AD4- +AFs- 107.927223+AF0- DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 +AD4- +AFs- 107.927223+AF0- DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 +AD4- +AFs- 107.927223+AF0- Process swapper/0 (pid: 1, threadinfo ffff88001d830000, task ffff88001e27c040) +AD4- +AFs- 107.927223+AF0- Stack: +AD4- +AFs- 107.927223+AF0- 000000000000332e ffff88001bff1080 ffff880010722e00 0000000000008000 +AD4- +AFs- 107.927223+AF0- ffff880010008380 000000000000000c ffff88001d831958 ffffffff82a80445 +AD4- +AFs- 107.927223+AF0- 000000000000332e ffff88001bff1080 ffff88001d831978 ffffffff82a81cfa +AD4- +AFs- 107.927223+AF0- Call Trace: +AD4- +AFs- 107.927223+AF0- +AFsAPA-ffffffff82a80445+AD4AXQ- rpc+AF8-release+AF8-resources+AF8-task+-0x14/0x37 +AD4- +AFs- 107.927223+AF0- +AFsAPA-ffffffff82a81cfa+AD4AXQ- rpc+AF8-put+AF8-task+-0x1f/0x2d +AD4- +AFs- 107.927223+AF0- +AFsAPA-ffffffff82a7b002+AD4AXQ- rpc+AF8-call+AF8-sync+-0x69/0x9e +AD4- +AFs- 107.927223+AF0- +AFsAPA-ffffffff82a79942+AD4AXQ- ? net+AF8-generic.isra.10+-0x2e/0x3d +AD4- +AFs- 107.927223+AF0- +AFsAPA-ffffffff82a7b07e+AD4AXQ- rpc+AF8-ping+-0x47/0x5d +AD4- +AFs- 107.927223+AF0- +AFsAPA-ffffffff82a7a42d+AD4AXQ- ? rpc+AF8-new+AF8-client+-0x2c8/0x331 +AD4- +AFs- 107.927223+AF0- +AFsAPA-ffffffff82a7b231+AD4AXQ- rpc+AF8-create+-0x11b/0x1ad +AD4- +AFs- 107.927223+AF0- +AFsAPA-ffffffff810e5bc4+AD4AXQ- ? trace+AF8-hardirqs+AF8-off+-0xd/0xf +AD4- +AFs- 107.927223+AF0- +AFsAPA-ffffffff810e8090+AD4AXQ- ? mark+AF8-lock+-0x2d/0x212 +AD4- +AFs- 107.927223+AF0- +AFsAPA-ffffffff812f24ce+AD4AXQ- nfs+AF8-mount+-0xdf/0x140 +AD4- +AFs- 107.927223+AF0- +AFsAPA-ffffffff812eaa1c+AD4AXQ- nfs+AF8-request+AF8-mount+-0x114/0x170 +AD4- +AFs- 107.927223+AF0- +AFsAPA-ffffffff810e93e4+AD4AXQ- ? lock+AF8-release+-0x17d/0x1cd +AD4- +AFs- 107.927223+AF0- +AFsAPA-ffffffff812eaaa7+AD4AXQ- nfs+AF8-try+AF8-mount+-0x2f/0x6d +AD4- +AFs- 107.927223+AF0- +AFsAPA-ffffffff812ebbcf+AD4AXQ- nfs+AF8-fs+AF8-mount+-0x6cf/0x7ad +AD4- +AFs- 107.927223+AF0- +AFsAPA-ffffffff812ec0a5+AD4AXQ- ? nfs+AF8-clone+AF8-super+-0x6b/0x6b +AD4- +AFs- 107.927223+AF0- +AFsAPA-ffffffff812e98f3+AD4AXQ- ? nfs+AF8-clone+AF8-sb+AF8-security+-0x51/0x51 +AD4- +AFs- 107.927223+AF0- +AFsAPA-ffffffff81194055+AD4AXQ- mount+AF8-fs+-0x69/0x158 +AD4- +AFs- 107.927223+AF0- +AFsAPA-ffffffff8116190a+AD4AXQ- ? +AF8AXw-alloc+AF8-percpu+-0x10/0x12 +AD4- +AFs- 107.927223+AF0- +AFsAPA-ffffffff811a9158+AD4AXQ- vfs+AF8-kern+AF8-mount+-0x62/0xd9 +AD4- +AFs- 107.927223+AF0- +AFsAPA-ffffffff811ab23d+AD4AXQ- do+AF8-mount+-0x763/0x875 +AD4- +AFs- 107.927223+AF0- +AFsAPA-ffffffff811ab3d4+AD4AXQ- sys+AF8-mount+-0x85/0xbe +AD4- +AFs- 107.927223+AF0- +AFsAPA-ffffffff841690d4+AD4AXQ- mount+AF8-root+-0x61/0x14f +AD4- +AFs- 107.927223+AF0- +AFsAPA-ffffffff8416932f+AD4AXQ- prepare+AF8-namespace+-0x16d/0x1a6 +AD4- +AFs- 107.927223+AF0- +AFsAPA-ffffffff82bdcb9b+AD4AXQ- kernel+AF8-init+-0x1c5/0x29b +AD4- +AFs- 107.927223+AF0- +AFsAPA-ffffffff84168590+AD4AXQ- ? do+AF8-early+AF8-param+-0x8c/0x8c +AD4- +AFs- 107.927223+AF0- +AFsAPA-ffffffff82bdc9d6+AD4AXQ- ? rest+AF8-init+-0xda/0xda +AD4- +AFs- 107.927223+AF0- +AFsAPA-ffffffff82c260ac+AD4AXQ- ret+AF8-from+AF8-fork+-0x7c/0xb0 +AD4- +AFs- 107.927223+AF0- +AFsAPA-ffffffff82bdc9d6+AD4AXQ- ? rest+AF8-init+-0xda/0xda +AD4- +AFs- 107.927223+AF0- Code: 89 e5 ff 50 18 5d c3 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 41 55 49 89 fd 41 54 53 41 52 4c 8b 67 20 4d 85 e4 75 22 48 8b 47 18 +ADw-48+AD4- 8b 78 70 48 8b b7 70 07 00 00 4c 39 ee 0f 85 86 01 00 00 e8 +AD4- +AFs- 107.927223+AF0- RIP +AFsAPA-ffffffff82a7c8ac+AD4AXQ- xprt+AF8-release+-0x24/0x1cb +AD4- +AFs- 107.927223+AF0- RSP +ADw-ffff88001d831908+AD4- +AD4- +AFs- 107.927223+AF0- CR2: 0000000000000070 +AD4- +AD4- Thanks, +AD4- Fengguang Hi Fengguang, Thanks for testing+ACE- The above Oops should be fixed in commit 87ed50036b866db2ec2ba16b2a7aec4a2b0b7c39, which is in the current linux-next branch on git.linux-nfs.org. It was due to a missing test for task-+AD4-tk+AF8-client +ACEAPQ- NULL. I should also have fixed the RCU dereference warning that the build robot found on Tuesday. Cheers Trond -- Trond Myklebust Linux NFS client maintainer NetApp Trond.Myklebust+AEA-netapp.com www.netapp.com -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
