WARN_ON(PageChecked(page)) in ext4_releasepage() when we run xfstests #247

BUG Zheng Liu 2 participants 2 messages Mar 7, 2013

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Zheng Liu

author

2013-03-07 12:18 UTC #0 lore raw

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.

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

Jan Kara

2013-03-07 12:46 UTC #1 lore raw

Quoted 8 lines · Zheng Liu

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

Quoted 187 lines

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
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Signature · 2 lines

Jan Kara <[email protected]>
SUSE Labs, CR