On Sat, Oct 11, 2014 at 01:59:27PM -0500, BillStuff wrote: > Hi, > > I'm running 3.14.21, and got these traces in dmesg; they appear to be from > xfs: > > [56180.816526] ------------[ cut here ]------------ > [56180.816550] WARNING: CPU: 5 PID: 67 at fs/xfs/xfs_aops.c:1172 if (WARN_ON(delalloc)) return 0; So this generally looks like stale delalloc blocks on a page that is reclaimed/invalidated or otherwise expected to be clean. We've been seeing this a lot over the past few kernel releases and there have been a variety of fixes in error paths and such so it's hard to say precisely what might be causing this. Some examples: aad3f375 xfs: xfs_vm_write_end truncates too much on failure 72ab70a1 xfs: write failure beyond EOF truncates too much data 4ab9ed57 xfs: kill buffers over failed write ranges properly It looks like those are in the stable tree as of 3.15, so you could give that a try and see if it helps. Otherwise, can you post xfs_info for the filesytem? Do you have particular workloads or sequences of operations that tend to reproduce this? Brian > xfs_vm_releasepage+0x9e/0xb0 [xfs]() > [56180.816551] Modules linked in: bsd_comp ppp_synctty ppp_async crc_ccitt > ppp_generic slhc nvidia(PO) nct6775 hwmon_vid nfsd ipv6 ipt_MASQUERADE > xt_conntrack iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat > nf_conntrack iptable_filter ip_tables x_tables pcmcia pcmcia_core nls_utf8 > isofs agpgart fuse or51132 snd_usb_audio snd_usbmidi_lib cx88_dvb > videobuf_dvb dvb_core cx88_vp3054_i2c snd_hwdep snd_pcm ir_mce_kbd_decoder > ir_lirc_codec lirc_dev ir_sony_decoder ir_nec_decoder ir_sanyo_decoder > ir_rc6_decoder ir_rc5_decoder ir_jvc_decoder snd_rawmidi rc_hauppauge > tuner_simple tuner_types tda9887 tda8290 tuner snd_seq_device > x86_pkg_temp_thermal snd_timer coretemp cx8800 kvm_intel cx8802 cx88xx > tveeprom btcx_risc videobuf_dma_sg videobuf_core snd i2c_algo_bit rc_core > kvm crc32c_intel v4l2_common i2c_dev usb_storage r8169 videodev i2c_i801 > processor microcode soundcore thermal_sys i2c_core mii lpc_ich hwmon > mfd_core evdev mxm_wmi wmi button loop hid_generic xhci_hcd uhci_hcd > ohci_hcd ehci_pci ehci_hcd usbhid hid pata_jmicron xfs ext3 jbd ext2 mbcache > raid456 async_raid6_recov async_memcpy async_pq raid6_pq async_xor xor > async_tx [last unloaded: nvidia] > [56180.816581] CPU: 5 PID: 67 Comm: kswapd0 Tainted: P O > 3.14.21be-dirty #1 > [56180.816582] Hardware name: System manufacturer System Product > Name/SABERTOOTH X79, BIOS 4608 12/24/2013 > [56180.816583] 00000000 00000000 e8ff5d48 c14d69b3 00000000 e8ff5d78 > c104348e c15d9f44 > [56180.816586] 00000005 00000043 f3b72e77 00000494 f3afbdbe f3afbdbe > f3afbd20 00000000 > [56180.816588] edcd43c0 e8ff5d88 c1043552 00000009 00000000 e8ff5db0 > f3afbdbe 00000000 > [56180.816590] Call Trace: > [56180.816594] [<c14d69b3>] dump_stack+0x41/0x52 > [56180.816597] [<c104348e>] warn_slowpath_common+0x7e/0xa0 > [56180.816604] [<f3afbdbe>] ? xfs_vm_releasepage+0x9e/0xb0 [xfs] > [56180.816609] [<f3afbdbe>] ? xfs_vm_releasepage+0x9e/0xb0 [xfs] > [56180.816615] [<f3afbd20>] ? xfs_count_page_state+0x60/0x60 [xfs] > [56180.816616] [<c1043552>] warn_slowpath_null+0x22/0x30 > [56180.816621] [<f3afbdbe>] xfs_vm_releasepage+0x9e/0xb0 [xfs] > [56180.816627] [<f3afbd20>] ? xfs_count_page_state+0x60/0x60 [xfs] > [56180.816629] [<c10ebdd3>] try_to_release_page+0x33/0x50 > [56180.816632] [<c10fbfca>] shrink_active_list+0x28a/0x290 > [56180.816634] [<c10fc453>] shrink_zone+0x483/0x6f0 > [56180.816636] [<c10f8f49>] ? zone_balanced+0x29/0x70 > [56180.816637] [<c10fcfae>] kswapd+0x3fe/0x890 > [56180.816639] [<c10fcbb0>] ? try_to_free_pages+0x4f0/0x4f0 > [56180.816642] [<c1060121>] kthread+0xa1/0xc0 > [56180.816644] [<c14dd137>] ret_from_kernel_thread+0x1b/0x28 > [56180.816646] [<c1060080>] ? kthread_create_on_node+0x110/0x110 > [56180.816647] ---[ end trace f7821664f1bc8f4b ]--- > [56180.821101] ------------[ cut here ]------------ > [56180.821109] WARNING: CPU: 5 PID: 67 at fs/xfs/xfs_aops.c:1172 > xfs_vm_releasepage+0x9e/0xb0 [xfs]() > [56180.821110] Modules linked in: bsd_comp ppp_synctty ppp_async crc_ccitt > ppp_generic slhc nvidia(PO) nct6775 hwmon_vid nfsd ipv6 ipt_MASQUERADE > xt_conntrack iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat > nf_conntrack iptable_filter ip_tables x_tables pcmcia pcmcia_core nls_utf8 > isofs agpgart fuse or51132 snd_usb_audio snd_usbmidi_lib cx88_dvb > videobuf_dvb dvb_core cx88_vp3054_i2c snd_hwdep snd_pcm ir_mce_kbd_decoder > ir_lirc_codec lirc_dev ir_sony_decoder ir_nec_decoder ir_sanyo_decoder > ir_rc6_decoder ir_rc5_decoder ir_jvc_decoder snd_rawmidi rc_hauppauge > tuner_simple tuner_types tda9887 tda8290 tuner snd_seq_device > x86_pkg_temp_thermal snd_timer coretemp cx8800 kvm_intel cx8802 cx88xx > tveeprom btcx_risc videobuf_dma_sg videobuf_core snd i2c_algo_bit rc_core > kvm crc32c_intel v4l2_common i2c_dev usb_storage r8169 videodev i2c_i801 > processor microcode soundcore thermal_sys i2c_core mii lpc_ich hwmon > mfd_core evdev mxm_wmi wmi button loop hid_generic xhci_hcd uhci_hcd > ohci_hcd ehci_pci ehci_hcd usbhid hid pata_jmicron xfs ext3 jbd ext2 mbcache > raid456 async_raid6_recov async_memcpy async_pq raid6_pq async_xor xor > async_tx [last unloaded: nvidia] > [56180.821137] CPU: 5 PID: 67 Comm: kswapd0 Tainted: P W O > 3.14.21be-dirty #1 > [56180.821138] Hardware name: System manufacturer System Product > Name/SABERTOOTH X79, BIOS 4608 12/24/2013 > [56180.821138] 00000000 00000000 e8ff5d48 c14d69b3 00000000 e8ff5d78 > c104348e c15d9f44 > [56180.821140] 00000005 00000043 f3b72e77 00000494 f3afbdbe f3afbdbe > f3afbd20 00000000 > [56180.821143] f07f2660 e8ff5d88 c1043552 00000009 00000000 e8ff5db0 > f3afbdbe 00000000 > [56180.821145] Call Trace: > [56180.821146] [<c14d69b3>] dump_stack+0x41/0x52 > [56180.821148] [<c104348e>] warn_slowpath_common+0x7e/0xa0 > [56180.821154] [<f3afbdbe>] ? xfs_vm_releasepage+0x9e/0xb0 [xfs] > [56180.821160] [<f3afbdbe>] ? xfs_vm_releasepage+0x9e/0xb0 [xfs] > [56180.821165] [<f3afbd20>] ? xfs_count_page_state+0x60/0x60 [xfs] > [56180.821167] [<c1043552>] warn_slowpath_null+0x22/0x30 > [56180.821172] [<f3afbdbe>] xfs_vm_releasepage+0x9e/0xb0 [xfs] > [56180.821177] [<f3afbd20>] ? xfs_count_page_state+0x60/0x60 [xfs] > [56180.821179] [<c10ebdd3>] try_to_release_page+0x33/0x50 > [56180.821181] [<c10fbfca>] shrink_active_list+0x28a/0x290 > [56180.821182] [<c10fc453>] shrink_zone+0x483/0x6f0 > [56180.821184] [<c10f8f49>] ? zone_balanced+0x29/0x70 > [56180.821186] [<c10fcfae>] kswapd+0x3fe/0x890 > [56180.821188] [<c10fcbb0>] ? try_to_free_pages+0x4f0/0x4f0 > [56180.821189] [<c1060121>] kthread+0xa1/0xc0 > [56180.821191] [<c14dd137>] ret_from_kernel_thread+0x1b/0x28 > [56180.821192] [<c1060080>] ? kthread_create_on_node+0x110/0x110 > [56180.821193] ---[ end trace f7821664f1bc8f4c ]--- > > Can anyone tell me what these mean and if they might be bad? > > thanks, > Bill > > _______________________________________________ > xfs mailing list > xfs@xxxxxxxxxxx > http://oss.sgi.com/mailman/listinfo/xfs _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
