I was doing an xfstests run on xfs with v4.11.0-rc1, and these two warnings popped. Looks like invalidate_inode_pages2_range failed? A small patch to print the error there showed that it was returning -EBUSY. Pretty easy to reproduce by running xfstests generic/095 on a KVM guest running v4.11.0-rc1. [ 591.302422] run fstests generic/095 at 2017-03-07 15:38:32 [ 591.452226] XFS (vda6): Unmounting Filesystem [ 591.825895] XFS (vda6): Mounting V5 Filesystem [ 591.841560] XFS (vda6): Ending clean mount [ 592.127155] ------------[ cut here ]------------ [ 592.133775] WARNING: CPU: 2 PID: 20539 at fs/iomap.c:954 iomap_dio_rw+0x39a/0x3b0 [ 592.145553] Modules linked in: loop dm_flakey binfmt_misc ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 xt_conntrack ip_set nfnetlink ebtable_broute bridge stp llc ebtable_nat ip6table_raw ip6table_security ip6table_mangle ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 iptable_raw iptable_security iptable_mangle iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack ebtable_filter ebtables ip6table_filter ip6_tables crct10dif_pclmul crc32_pclmul ghash_clmulni_intel nfsd ppdev auth_rpcgss nfs_acl lockd joydev parport_pc pcspkr acpi_cpufreq virtio_balloon parport tpm_tis tpm_tis_core i2c_piix4 tpm grace sunrpc qemu_fw_cfg xfs libcrc32c qxl drm_kms_helper ttm virtio_net virtio_console virtio_blk drm floppy crc32c_intel virtio_pci serio_raw virtio_ring virtio ata_generic pata_acpi [ 592.158597] CPU: 2 PID: 20539 Comm: fio Not tainted 4.11.0-rc1 #17 [ 592.159584] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.3-1.fc25 04/01/2014 [ 592.159584] Call Trace: [ 592.159584] dump_stack+0x63/0x86 [ 592.162726] __warn+0xcb/0xf0 [ 592.162726] warn_slowpath_null+0x1d/0x20 [ 592.162726] iomap_dio_rw+0x39a/0x3b0 [ 592.165653] ? iomap_dio_zero+0x130/0x130 [ 592.165653] xfs_file_dio_aio_write+0xd0/0x240 [xfs] [ 592.165653] xfs_file_write_iter+0x94/0x140 [xfs] [ 592.165653] __vfs_write+0xe5/0x160 [ 592.169128] vfs_write+0xb5/0x1a0 [ 592.169653] SyS_pwrite64+0x95/0xb0 [ 592.169653] entry_SYSCALL_64_fastpath+0x1a/0xa9 [ 592.169653] RIP: 0033:0x7fe3e565e233 [ 592.169653] RSP: 002b:00007fe3f9d06ea0 EFLAGS: 00000293 ORIG_RAX: 0000000000000012 [ 592.175968] RAX: ffffffffffffffda RBX: 00007fe3f9d09a80 RCX: 00007fe3e565e233 [ 592.179383] RDX: 0000000000000400 RSI: 0000000001804400 RDI: 0000000000000003 [ 592.181797] RBP: 00007fffbfeba050 R08: 0000000000000000 R09: 00007fe3f9d09a80 [ 592.181797] R10: 000000000001f800 R11: 0000000000000293 R12: 0000000000000000 [ 592.181797] R13: 00007fffbfeb9f9f R14: 00007fe3f9d09d40 R15: 00007fe3f9d09a80 [ 592.189085] ---[ end trace 2935e8d6d0b7a83e ]--- [ 592.201657] ------------[ cut here ]------------ [ 592.202828] WARNING: CPU: 0 PID: 20540 at fs/iomap.c:896 iomap_dio_rw+0x1b1/0x3b0 [ 592.204118] Modules linked in: loop dm_flakey binfmt_misc ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 xt_conntrack ip_set nfnetlink ebtable_broute bridge stp llc ebtable_nat ip6table_raw ip6table_security ip6table_mangle ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 iptable_raw iptable_security iptable_mangle iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack ebtable_filter ebtables ip6table_filter ip6_tables crct10dif_pclmul crc32_pclmul ghash_clmulni_intel nfsd ppdev auth_rpcgss nfs_acl lockd joydev parport_pc pcspkr acpi_cpufreq virtio_balloon parport tpm_tis tpm_tis_core i2c_piix4 tpm grace sunrpc qemu_fw_cfg xfs libcrc32c qxl drm_kms_helper ttm virtio_net virtio_console virtio_blk drm floppy crc32c_intel virtio_pci serio_raw virtio_ring virtio ata_generic pata_acpi [ 592.225076] CPU: 0 PID: 20540 Comm: fio Tainted: G W 4.11.0-rc1 #17 [ 592.226084] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.3-1.fc25 04/01/2014 [ 592.226084] Call Trace: [ 592.229035] dump_stack+0x63/0x86 [ 592.229035] __warn+0xcb/0xf0 [ 592.229035] warn_slowpath_null+0x1d/0x20 [ 592.229035] iomap_dio_rw+0x1b1/0x3b0 [ 592.233233] ? inode_dio_wait+0xee/0x100 [ 592.233233] xfs_file_dio_aio_write+0xd0/0x240 [xfs] [ 592.233233] xfs_file_write_iter+0x94/0x140 [xfs] [ 592.236035] __vfs_write+0xe5/0x160 [ 592.237032] vfs_write+0xb5/0x1a0 [ 592.237032] SyS_pwrite64+0x95/0xb0 [ 592.237032] entry_SYSCALL_64_fastpath+0x1a/0xa9 [ 592.237032] RIP: 0033:0x7fe3e565e233 [ 592.241138] RSP: 002b:00007fe3f9d08ea0 EFLAGS: 00000293 ORIG_RAX: 0000000000000012 [ 592.241138] RAX: ffffffffffffffda RBX: 00007fe3f9d0ba80 RCX: 00007fe3e565e233 [ 592.241138] RDX: 0000000000000400 RSI: 0000000001806c00 RDI: 0000000000000003 [ 592.241138] RBP: 00007fffbfeba050 R08: 00007fe3f9d0ba80 R09: 00007fe3f9d0ba80 [ 592.245393] R10: 000000000000a800 R11: 0000000000000293 R12: 0000000000000000 [ 592.246611] R13: 00007fffbfeb9f9f R14: 00007fe3f9d0bd40 R15: 00007fe3f9d0ba80 [ 592.249249] ---[ end trace 2935e8d6d0b7a83f ]--- -- Jeff Layton <jlayton@xxxxxxxxxx>
