Hi there,
I am getting my logs filled with a kernel trace on a very recent machine (brand new in fact).
This occurs when copying files on disks being on xfs (it is not clear to me if this error is memory (mm) or xfs). I'll try a memtest to be sure that this is not hardware related.

Up to the trace, I did not notice any anormal behaviour of the system!

Cheers,
chris.



[ 3509.794210] ------------[ cut here ]------------
[ 3509.794216] WARNING: CPU: 10 PID: 35439 at mm/truncate.c:758 pagecache_isize_extended+0xdd/0x120()
[ 3509.794218] Modules linked in: loop bnep bluetooth rfkill lockd af_packet msr xfs snd_hda_codec_hdmi snd_hda_codec_realtek nvidia(PO) snd_hda_codec_generic snd_hda_intel snd_hda_controller intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel snd_usb_audio kvm crct10dif_pclmul uvcvideo snd_usbmidi_lib crc32_pclmul snd_hda_codec ghash_clmulni_intel videobuf2_vmalloc snd_rawmidi videobuf2_memops aesni_intel snd_hwdep snd_seq_device e1000e uas drm videobuf2_core v4l2_common iTCO_wdt igb snd_pcm mei_me aes_x86_64 lrw snd_timer gf128mul dca glue_helper ablk_helper i2c_algo_bit snd cryptd iTCO_vendor_support sb_edac ptp videodev media mei serio_raw dcdbas usb_storage edac_core microcode soundcore hid_generic shpchp i2c_i801 lpc_ich pps_core evdev sch_fq_codel cpufreq_ondemand cpufreq_conservative
[ 3509.794261]  cpufreq_powersave processor sunrpc ipv6 autofs4 usbhid hid ehci_pci xhci_hcd ehci_hcd usbcore crc32c_intel sr_mod usb_common wmi button ide_pci_generic ide_core mpt3sas raid_class scsi_transport_sas ata_generic pata_acpi
[ 3509.794276] CPU: 10 PID: 35439 Comm: URL Classifier Tainted: P        W  O   3.17.2-server-4.mga5 #1
[ 3509.794278] Hardware name: Dell Inc. Precision Tower 7910/02TPVG, BIOS A02 09/05/2014
[ 3509.794279]  0000000000000009 ffff880e836afd88 ffffffff816a0dac 0000000000000000
[ 3509.794282]  ffff880e836afdc0 ffffffff81069f9d 0000000000001000 ffff88068621c1a8
[ 3509.794285]  0000000000000000 ffff88068621c1a8 00000000000d216a ffff880e836afdd0
[ 3509.794289] Call Trace:
[ 3509.794292]  [<ffffffff816a0dac>] dump_stack+0x45/0x56
[ 3509.794297]  [<ffffffff81069f9d>] warn_slowpath_common+0x7d/0xa0
[ 3509.794300]  [<ffffffff8106a07a>] warn_slowpath_null+0x1a/0x20
[ 3509.794303]  [<ffffffff8115421d>] pagecache_isize_extended+0xdd/0x120
[ 3509.794306]  [<ffffffff811550d7>] truncate_setsize+0x27/0x40
[ 3509.794336]  [<ffffffffc1450def>] xfs_setattr_size+0x13f/0x380 [xfs]
[ 3509.794358]  [<ffffffffc145e747>] ? xfs_trans_commit+0x157/0x250 [xfs]
[ 3509.794377]  [<ffffffffc1445ebf>] xfs_file_fallocate+0x2df/0x300 [xfs]
[ 3509.794381]  [<ffffffff811b9f79>] ? __sb_start_write+0x49/0xf0
[ 3509.794384]  [<ffffffff811b4e23>] do_fallocate+0x123/0x1b0
[ 3509.794387]  [<ffffffff811b5ca3>] SyS_fallocate+0x43/0x70
[ 3509.794391]  [<ffffffff816a80ad>] system_call_fastpath+0x1a/0x1f
[ 3509.794393] ---[ end trace d1f36530304a68f3 ]---


Reproducible: 

Steps to Reproduce: