On Thu 07-03-13 20:33:57, Zheng Liu wrote: > Hi all, > > I hit this WARN_ON in 3.8 kernel and dev branch. The WARN_ON is hard to > be triggerred because I run test case 8 times to hit it. Here is the > messages from dmesg. > > *One Big Note* > Although we get the warning message, the test can pass. I think I see what's happening. This should be harmless since page likely has PageDirty set as well and it won't be invalidated. But it's good to fix the warning anyway. I'll send a patch in a while. Honza > wenqing: run xfstest 247 > kernel: ------------[ cut here ]------------ > kernel: WARNING: at fs/ext4/inode.c:2926 ext4_releasepage+0x74/0xa4 [ext4]() > kernel: Hardware name: OptiPlex 780 > kernel: Modules linked in: ext4 jbd2 crc16 cpufreq_ondemand ipv6 dm_mirror > dm_region_hash dm_log dm_mod parport_pc parport dcdbas acpi_cpufreq mperf > serio_raw pcspkr i2c_i801 i2c_core sg ehci_pci ehci_hcd button e1000e ext3 > jbd sd_mod ahci libahci libata scsi_mod uhci_hcd > kernel: Pid: 6063, comm: dd Not tainted 3.8.0 #1 > kernel: Call Trace: > kernel: [<ffffffff82031d68>] warn_slowpath_common+0x85/0x9d > kernel: [<ffffffff82031d9a>] warn_slowpath_null+0x1a/0x1c > kernel: [<ffffffffa01fe8c8>] ext4_releasepage+0x74/0xa4 [ext4] > kernel: [<ffffffff820afb0e>] try_to_release_page+0x36/0x3f > kernel: [<ffffffff820baedf>] invalidate_inode_pages2_range+0x168/0x270 > kernel: [<ffffffff820b14ea>] generic_file_direct_write+0xb8/0x16a > kernel: [<ffffffff820b17a5>] __generic_file_aio_write+0x209/0x2ef > kernel: [<ffffffffa01f8a49>] ext4_file_write+0x29e/0x38d [ext4] > kernel: [<ffffffff820edb2c>] do_sync_write+0x9d/0xda > kernel: [<ffffffff820ee574>] vfs_write+0xb3/0x138 > kernel: [<ffffffff820ee6cd>] sys_write+0x54/0x7e > kernel: [<ffffffff82386942>] system_call_fastpath+0x16/0x1b > kernel: ---[ end trace 5372b37668057d66 ]--- > kernel: ------------[ cut here ]------------ > kernel: WARNING: at fs/ext4/inode.c:2926 ext4_releasepage+0x74/0xa4 [ext4]() > kernel: Hardware name: OptiPlex 780 > kernel: Modules linked in: ext4 jbd2 crc16 cpufreq_ondemand ipv6 dm_mirror > dm_region_hash dm_log dm_mod parport_pc parport dcdbas acpi_cpufreq mperf > serio_raw pcspkr i2c_i801 i2c_core sg ehci_pci ehci_hcd button e1000e ext3 > jbd sd_mod ahci libahci libata scsi_mod uhci_hcd > kernel: Pid: 6063, comm: dd Tainted: G W 3.8.0 #1 > kernel: Call Trace: > kernel: [<ffffffff82031d68>] warn_slowpath_common+0x85/0x9d > kernel: [<ffffffff82031d9a>] warn_slowpath_null+0x1a/0x1c > kernel: [<ffffffffa01fe8c8>] ext4_releasepage+0x74/0xa4 [ext4] > kernel: [<ffffffff820afb0e>] try_to_release_page+0x36/0x3f > kernel: [<ffffffff820baedf>] invalidate_inode_pages2_range+0x168/0x270 > kernel: [<ffffffff820b14ea>] generic_file_direct_write+0xb8/0x16a > kernel: [<ffffffff820b17a5>] __generic_file_aio_write+0x209/0x2ef > kernel: [<ffffffffa01f8a49>] ext4_file_write+0x29e/0x38d [ext4] > kernel: [<ffffffff820edb2c>] do_sync_write+0x9d/0xda > kernel: [<ffffffff820ee574>] vfs_write+0xb3/0x138 > kernel: [<ffffffff820ee6cd>] sys_write+0x54/0x7e > kernel: [<ffffffff82386942>] system_call_fastpath+0x16/0x1b > kernel: ---[ end trace 5372b37668057d67 ]--- > kernel: ------------[ cut here ]------------ > kernel: WARNING: at fs/ext4/inode.c:2926 ext4_releasepage+0x74/0xa4 [ext4]() > kernel: Hardware name: OptiPlex 780 > kernel: Modules linked in: ext4 jbd2 crc16 cpufreq_ondemand ipv6 dm_mirror > dm_region_hash dm_log dm_mod parport_pc parport dcdbas acpi_cpufreq mperf > serio_raw pcspkr i2c_i801 i2c_core sg ehci_pci ehci_hcd button e1000e ext3 > jbd sd_mod ahci libahci libata scsi_mod uhci_hcd > kernel: Pid: 6063, comm: dd Tainted: G W 3.8.0 #1 > kernel: Call Trace: > kernel: [<ffffffff82031d68>] warn_slowpath_common+0x85/0x9d > kernel: [<ffffffff82031d9a>] warn_slowpath_null+0x1a/0x1c > kernel: [<ffffffffa01fe8c8>] ext4_releasepage+0x74/0xa4 [ext4] > kernel: [<ffffffff820afb0e>] try_to_release_page+0x36/0x3f > kernel: [<ffffffff820baedf>] invalidate_inode_pages2_range+0x168/0x270 > kernel: [<ffffffff820b14ea>] generic_file_direct_write+0xb8/0x16a > kernel: [<ffffffff820b17a5>] __generic_file_aio_write+0x209/0x2ef > kernel: [<ffffffffa01f8a49>] ext4_file_write+0x29e/0x38d [ext4] > kernel: [<ffffffff820edb2c>] do_sync_write+0x9d/0xda > kernel: [<ffffffff820ee574>] vfs_write+0xb3/0x138 > kernel: [<ffffffff820ee6cd>] sys_write+0x54/0x7e > kernel: [<ffffffff82386942>] system_call_fastpath+0x16/0x1b > kernel: ---[ end trace 5372b37668057d68 ]--- > kernel: ------------[ cut here ]------------ > kernel: WARNING: at fs/ext4/inode.c:2926 ext4_releasepage+0x74/0xa4 [ext4]() > kernel: Hardware name: OptiPlex 780 > kernel: Modules linked in: ext4 jbd2 crc16 cpufreq_ondemand ipv6 dm_mirror > dm_region_hash dm_log dm_mod parport_pc parport dcdbas acpi_cpufreq mperf > serio_raw pcspkr i2c_i801 i2c_core sg ehci_pci ehci_hcd button e1000e ext3 > jbd sd_mod ahci libahci libata scsi_mod uhci_hcd > kernel: Pid: 6063, comm: dd Tainted: G W 3.8.0 #1 > kernel: Call Trace: > kernel: [<ffffffff82031d68>] warn_slowpath_common+0x85/0x9d > kernel: [<ffffffff82031d9a>] warn_slowpath_null+0x1a/0x1c > kernel: [<ffffffffa01fe8c8>] ext4_releasepage+0x74/0xa4 [ext4] > kernel: [<ffffffff820afb0e>] try_to_release_page+0x36/0x3f > kernel: [<ffffffff820baedf>] invalidate_inode_pages2_range+0x168/0x270 > kernel: [<ffffffff820b14ea>] generic_file_direct_write+0xb8/0x16a > kernel: [<ffffffff820b17a5>] __generic_file_aio_write+0x209/0x2ef > kernel: [<ffffffffa01f8a49>] ext4_file_write+0x29e/0x38d [ext4] > kernel: [<ffffffff820edb2c>] do_sync_write+0x9d/0xda > kernel: [<ffffffff820ee574>] vfs_write+0xb3/0x138 > kernel: [<ffffffff820ee6cd>] sys_write+0x54/0x7e > kernel: [<ffffffff82386942>] system_call_fastpath+0x16/0x1b > kernel: ---[ end trace 5372b37668057d69 ]--- > kernel: ------------[ cut here ]------------ > kernel: WARNING: at fs/ext4/inode.c:2926 ext4_releasepage+0x74/0xa4 [ext4]() > kernel: Hardware name: OptiPlex 780 > kernel: Modules linked in: ext4 jbd2 crc16 cpufreq_ondemand ipv6 dm_mirror > dm_region_hash dm_log dm_mod parport_pc parport dcdbas acpi_cpufreq mperf > serio_raw pcspkr i2c_i801 i2c_core sg ehci_pci ehci_hcd button e1000e ext3 > jbd sd_mod ahci libahci libata scsi_mod uhci_hcd > kernel: Pid: 6063, comm: dd Tainted: G W 3.8.0 #1 > kernel: Call Trace: > kernel: [<ffffffff82031d68>] warn_slowpath_common+0x85/0x9d > kernel: [<ffffffff82031d9a>] warn_slowpath_null+0x1a/0x1c > kernel: [<ffffffffa01fe8c8>] ext4_releasepage+0x74/0xa4 [ext4] > kernel: [<ffffffff820afb0e>] try_to_release_page+0x36/0x3f > kernel: [<ffffffff820baedf>] invalidate_inode_pages2_range+0x168/0x270 > kernel: [<ffffffff820b14ea>] generic_file_direct_write+0xb8/0x16a > kernel: [<ffffffff820b17a5>] __generic_file_aio_write+0x209/0x2ef > kernel: [<ffffffffa01f8a49>] ext4_file_write+0x29e/0x38d [ext4] > kernel: [<ffffffff820edb2c>] do_sync_write+0x9d/0xda > kernel: [<ffffffff820ee574>] vfs_write+0xb3/0x138 > kernel: [<ffffffff820ee6cd>] sys_write+0x54/0x7e > kernel: [<ffffffff82386942>] system_call_fastpath+0x16/0x1b > kernel: ---[ end trace 5372b37668057d6a ]--- > kernel: ------------[ cut here ]------------ > kernel: WARNING: at fs/ext4/inode.c:2926 ext4_releasepage+0x74/0xa4 [ext4]() > kernel: Hardware name: OptiPlex 780 > kernel: Modules linked in: ext4 jbd2 crc16 cpufreq_ondemand ipv6 dm_mirror > dm_region_hash dm_log dm_mod parport_pc parport dcdbas acpi_cpufreq mperf > serio_raw pcspkr i2c_i801 i2c_core sg ehci_pci ehci_hcd button e1000e ext3 > jbd sd_mod ahci libahci libata scsi_mod uhci_hcd > kernel: Pid: 6063, comm: dd Tainted: G W 3.8.0 #1 > kernel: Call Trace: > kernel: [<ffffffff82031d68>] warn_slowpath_common+0x85/0x9d > kernel: [<ffffffff82031d9a>] warn_slowpath_null+0x1a/0x1c > kernel: [<ffffffffa01fe8c8>] ext4_releasepage+0x74/0xa4 [ext4] > kernel: [<ffffffff820afb0e>] try_to_release_page+0x36/0x3f > kernel: [<ffffffff820baedf>] invalidate_inode_pages2_range+0x168/0x270 > kernel: [<ffffffff820b14ea>] generic_file_direct_write+0xb8/0x16a > kernel: [<ffffffff820b17a5>] __generic_file_aio_write+0x209/0x2ef > kernel: [<ffffffffa01f8a49>] ext4_file_write+0x29e/0x38d [ext4] > kernel: [<ffffffff820edb2c>] do_sync_write+0x9d/0xda > kernel: [<ffffffff820ee574>] vfs_write+0xb3/0x138 > kernel: [<ffffffff820ee6cd>] sys_write+0x54/0x7e > kernel: [<ffffffff82386942>] system_call_fastpath+0x16/0x1b > kernel: ---[ end trace 5372b37668057d6b ]--- > kernel: ------------[ cut here ]------------ > kernel: WARNING: at fs/ext4/inode.c:2926 ext4_releasepage+0x74/0xa4 [ext4]() > kernel: Hardware name: OptiPlex 780 > kernel: Modules linked in: ext4 jbd2 crc16 cpufreq_ondemand ipv6 dm_mirror > dm_region_hash dm_log dm_mod parport_pc parport dcdbas acpi_cpufreq mperf > serio_raw pcspkr i2c_i801 i2c_core sg ehci_pci ehci_hcd button e1000e ext3 > jbd sd_mod ahci libahci libata scsi_mod uhci_hcd > kernel: Pid: 6063, comm: dd Tainted: G W 3.8.0 #1 > kernel: Call Trace: > kernel: [<ffffffff82031d68>] warn_slowpath_common+0x85/0x9d > kernel: [<ffffffff82031d9a>] warn_slowpath_null+0x1a/0x1c > kernel: [<ffffffffa01fe8c8>] ext4_releasepage+0x74/0xa4 [ext4] > kernel: [<ffffffff820afb0e>] try_to_release_page+0x36/0x3f > kernel: [<ffffffff820baedf>] invalidate_inode_pages2_range+0x168/0x270 > kernel: [<ffffffff820b14ea>] generic_file_direct_write+0xb8/0x16a > kernel: [<ffffffff820b17a5>] __generic_file_aio_write+0x209/0x2ef > kernel: [<ffffffffa01f8a49>] ext4_file_write+0x29e/0x38d [ext4] > kernel: [<ffffffff820edb2c>] do_sync_write+0x9d/0xda > kernel: [<ffffffff820ee574>] vfs_write+0xb3/0x138 > kernel: [<ffffffff820ee6cd>] sys_write+0x54/0x7e > kernel: [<ffffffff82386942>] system_call_fastpath+0x16/0x1b > kernel: ---[ end trace 5372b37668057d6c ]--- > kernel: ------------[ cut here ]------------ > kernel: WARNING: at fs/ext4/inode.c:2926 ext4_releasepage+0x74/0xa4 [ext4]() > kernel: Hardware name: OptiPlex 780 > kernel: Modules linked in: ext4 jbd2 crc16 cpufreq_ondemand ipv6 dm_mirror > dm_region_hash dm_log dm_mod parport_pc parport dcdbas acpi_cpufreq mperf > serio_raw pcspkr i2c_i801 i2c_core sg ehci_pci ehci_hcd button e1000e ext3 > jbd sd_mod ahci libahci libata scsi_mod uhci_hcd > kernel: Pid: 6063, comm: dd Tainted: G W 3.8.0 #1 > kernel: Call Trace: > kernel: [<ffffffff82031d68>] warn_slowpath_common+0x85/0x9d > kernel: [<ffffffff82031d9a>] warn_slowpath_null+0x1a/0x1c > kernel: [<ffffffffa01fe8c8>] ext4_releasepage+0x74/0xa4 [ext4] > kernel: [<ffffffff820afb0e>] try_to_release_page+0x36/0x3f > kernel: [<ffffffff820baedf>] invalidate_inode_pages2_range+0x168/0x270 > kernel: [<ffffffff820b14ea>] generic_file_direct_write+0xb8/0x16a > kernel: [<ffffffff820b17a5>] __generic_file_aio_write+0x209/0x2ef > kernel: [<ffffffffa01f8a49>] ext4_file_write+0x29e/0x38d [ext4] > kernel: [<ffffffff820edb2c>] do_sync_write+0x9d/0xda > kernel: [<ffffffff820ee574>] vfs_write+0xb3/0x138 > kernel: [<ffffffff820ee6cd>] sys_write+0x54/0x7e > kernel: [<ffffffff82386942>] system_call_fastpath+0x16/0x1b > kernel: ---[ end trace 5372b37668057d6d ]--- > > ...... > [snip] > > Regards, > - Zheng > -- > To unsubscribe from this list: send the line "unsubscribe linux-ext4" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- Jan Kara <jack@xxxxxxx> SUSE Labs, CR -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to 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