I am getting this every time (IOW, reproducible ) when I trying to write. This is fedora 19, 64 bit 3.10.9-200.fc19.x86_64 [257349.666159] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [257366.629133] BUG: unable to handle kernel NULL pointer dereference at 0000000000000038 [257366.629154] IP: [<ffffffffa075d527>] nfs4_fl_prepare_ds+0x127/0x280 [nfs_layout_nfsv41_files] [257366.629167] PGD 1fc02f067 PUD 16a081067 PMD 0 [257366.629176] Oops: 0002 [#1] SMP [257366.629182] Modules linked in: nfs_layout_nfsv41_files rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd sunrpc dns_resolver fscache tcp_lp fuse nf_conntrack_netbios_ns nf_conntrack_broadcast ipt_MASQUERADE ip6table_nat nf_nat_ipv6 ip6table_mangle ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 iptable_nat nf_nat_ipv4 nf_nat iptable_mangle nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack vboxpci(OF) vboxnetadp(OF) vboxnetflt(OF) ebtable_filter rfcomm ebtables ip6table_filter bnep ip6_tables vboxdrv(OF) snd_hda_codec_hdmi snd_hda_codec_idt uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core videodev arc4 iTCO_wdt iTCO_vendor_support media mperf coretemp kvm_intel iwldvm dell_laptop btusb dell_wmi mac80211 kvm bluetooth sdhci_pci snd_hda_intel ppdev sparse_keymap crc32_pclmul crc32c_intel dcdbas [257366.629308] ghash_clmulni_intel iwlwifi microcode snd_hda_codec cfg80211 snd_hwdep snd_seq joydev snd_seq_device snd_pcm i2c_i801 sdhci snd_page_alloc e1000e mmc_core snd_timer snd lpc_ich mei_me mfd_core rfkill mei ptp soundcore pps_core parport_pc parport uinput nouveau mxm_wmi i2c_algo_bit drm_kms_helper ttm drm firewire_ohci firewire_core crc_itu_t i2c_core wmi video [257366.629381] CPU: 0 PID: 16763 Comm: cp Tainted: GF C O 3.10.9-200.fc19.x86_64 #1 [257366.629387] Hardware name: Dell Inc. Latitude E6520/0J4TFW, BIOS A06 07/11/2011 [257366.629393] task: ffff8800a3a5b560 ti: ffff880221416000 task.ti: ffff880221416000 [257366.629398] RIP: 0010:[<ffffffffa075d527>] [<ffffffffa075d527>] nfs4_fl_prepare_ds+0x127/0x280 [nfs_layout_nfsv41_files] [257366.629409] RSP: 0018:ffff880221417c70 EFLAGS: 00010202 [257366.629414] RAX: 000000010f4e66ef RBX: 0000000000000000 RCX: 0000000000000000 [257366.629419] RDX: 00000000000bbbf6 RSI: ffffffffa07eb248 RDI: ffff8801709a8580 [257366.629424] RBP: ffff880221417ca8 R08: 0000000000016f20 R09: 019d86e3c80c0000 [257366.629429] R10: ffff880213b10d10 R11: 0000000000000000 R12: ffffffffffffff8f [257366.629434] R13: ffff8801709a8580 R14: ffff8802125f4800 R15: 0000000000000038 [257366.629439] FS: 00007f519c809800(0000) GS:ffff88022dc00000(0000) knlGS:0000000000000000 [257366.629449] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [257366.629453] CR2: 0000000000000038 CR3: 000000022006d000 CR4: 00000000000407f0 [257366.629459] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [257366.629464] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [257366.629469] Stack: [257366.629472] ffff880213b10d98 ffff88009b3449c0 ffff8801fc0f00a0 ffff880101683800 [257366.629482] ffff8802125f4800 0000000000000000 0000000000000000 ffff880221417d00 [257366.629491] ffffffffa075b210 ffff8801eaddc598 ffff88009b345f48 ffff8801fc0f0000 [257366.629501] Call Trace: [257366.629508] [<ffffffffa075b210>] filelayout_write_pagelist+0x50/0x150 [nfs_layout_nfsv41_files] [257366.629524] [<ffffffffa084b2de>] pnfs_generic_pg_writepages+0xee/0x280 [nfsv4] [257366.629536] [<ffffffffa080d869>] nfs_pageio_doio+0x19/0x50 [nfs] [257366.629546] [<ffffffffa080dba4>] nfs_pageio_complete+0x24/0x30 [nfs] [257366.629556] [<ffffffffa0811c6c>] nfs_writepages+0xac/0x130 [nfs] [257366.629565] [<ffffffff8113a55e>] do_writepages+0x1e/0x40 [257366.629571] [<ffffffff8112f909>] __filemap_fdatawrite_range+0x59/0x60 [257366.629578] [<ffffffff8112fa0a>] filemap_write_and_wait_range+0x2a/0x70 [257366.629592] [<ffffffffa0842aaf>] nfs4_file_fsync+0x5f/0xb0 [nfsv4] [257366.629599] [<ffffffff811c42cb>] vfs_fsync+0x2b/0x40 [257366.629607] [<ffffffffa0803b9a>] nfs_file_flush+0x7a/0xb0 [nfs] [257366.629614] [<ffffffff811957a4>] filp_close+0x34/0x80 [257366.629622] [<ffffffff811b352a>] __close_fd+0x6a/0x80 [257366.629628] [<ffffffff81196f63>] SyS_close+0x23/0x50 [257366.629635] [<ffffffff81647719>] system_call_fastpath+0x16/0x1b [257366.629640] Code: 49 8b 06 4c 89 e7 48 8b b0 20 01 00 00 e8 c2 c8 0e 00 85 c0 0f 85 9f 00 00 00 f6 05 c4 08 09 00 20 4c 89 63 28 0f 85 0c 01 00 00 <f0> 41 80 27 fe 31 f6 4c 89 ff 49 89 dc e8 87 43 92 e0 e9 0c ff [257366.629728] RIP [<ffffffffa075d527>] nfs4_fl_prepare_ds+0x127/0x280 [nfs_layout_nfsv41_files] [257366.629736] RSP <ffff880221417c70> [257366.629740] CR2: 0000000000000038 [257366.637157] ---[ end trace 72a58bcbc080508c ]--- [root@ani data]# Tigran. -- 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
