[Kernel-packages] [Bug 1423672] Re: ext4_mb_generate_buddy:756: group N, block bitmap and bg descriptor inconsistent: X vs Y
Same error, on a single VM, virtio driver, ext4: EXT4-fs (vda1): pa 880010c3daf8: logic 512, pyhs. 6750208, len 512 EXT4-fs error (device vda1): ext4_mb_release_inode_pa:3773: group 206, free 143, pa_free 142 Aborting journal on device vda1-8 Disk quota active No memory error (checked) No disk error (checked too) At system reset, filesystem check and correction, quota data corrupted, quotacheck take long time to complete. The error is strictly correlated to filesystem activity, when raise, error is more frequent. ubuntu 14.04 all updated, kernel 3.16.0-49-generic -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1423672 Title: ext4_mb_generate_buddy:756: group N, block bitmap and bg descriptor inconsistent: X vs Y Status in linux package in Ubuntu: Incomplete Status in linux source package in Trusty: Confirmed Bug description: I noticed that one of my VM had this "dmesg -T" output: [Tue Feb 17 09:53:27 2015] systemd-udevd[5433]: starting version 204 [Thu Feb 19 06:25:08 2015] EXT4-fs error (device vda1): ext4_mb_generate_buddy:756: group 5, block bitmap and bg descriptor inconsistent: 16446 vs 16445 free clusters [Thu Feb 19 06:25:09 2015] Aborting journal on device vda1-8. [Thu Feb 19 06:25:09 2015] EXT4-fs (vda1): Remounting filesystem read-only [Thu Feb 19 06:25:09 2015] [ cut here ] [Thu Feb 19 06:25:09 2015] WARNING: CPU: 0 PID: 9946 at /build/buildd/linux-3.13.0/fs/ext4/ext4_jbd2.c:259 __ext4_handle_dirty_metadata+0x1a2/0x1c0() [Thu Feb 19 06:25:09 2015] Modules linked in: nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 xt_owner xt_conntrack nf_conntrack iptable_filter ip_tables x_tables serio_raw psmouse floppy [Thu Feb 19 06:25:09 2015] CPU: 0 PID: 9946 Comm: logrotate Not tainted 3.13.0-45-generic #74-Ubuntu [Thu Feb 19 06:25:09 2015] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [Thu Feb 19 06:25:09 2015] 0009 880003a11aa0 81720eb6 [Thu Feb 19 06:25:09 2015] 880003a11ad8 810677cd 88c41340 [Thu Feb 19 06:25:09 2015] 88000a58e000 81835280 1302 880003a11ae8 [Thu Feb 19 06:25:09 2015] Call Trace: [Thu Feb 19 06:25:09 2015] [] dump_stack+0x45/0x56 [Thu Feb 19 06:25:09 2015] [] warn_slowpath_common+0x7d/0xa0 [Thu Feb 19 06:25:09 2015] [] warn_slowpath_null+0x1a/0x20 [Thu Feb 19 06:25:09 2015] [] __ext4_handle_dirty_metadata+0x1a2/0x1c0 [Thu Feb 19 06:25:09 2015] [] ? ext4_dirty_inode+0x2a/0x60 [Thu Feb 19 06:25:09 2015] [] ext4_free_blocks+0x646/0xbf0 [Thu Feb 19 06:25:09 2015] [] ? wake_up_bit+0x25/0x30 [Thu Feb 19 06:25:09 2015] [] ext4_ext_rm_leaf+0x505/0x8f0 [Thu Feb 19 06:25:09 2015] [] ? __ext4_ext_check+0x197/0x370 [Thu Feb 19 06:25:09 2015] [] ? ext4_ext_remove_space+0xc0/0x7e0 [Thu Feb 19 06:25:09 2015] [] ext4_ext_remove_space+0x31c/0x7e0 [Thu Feb 19 06:25:09 2015] [] ext4_ext_truncate+0xb0/0xe0 [Thu Feb 19 06:25:09 2015] [] ext4_truncate+0x379/0x3c0 [Thu Feb 19 06:25:09 2015] [] ext4_evict_inode+0x408/0x4d0 [Thu Feb 19 06:25:09 2015] [] evict+0xb0/0x1b0 [Thu Feb 19 06:25:09 2015] [] iput+0xf5/0x180 [Thu Feb 19 06:25:09 2015] [] __dentry_kill+0x1a8/0x200 [Thu Feb 19 06:25:09 2015] [] dput+0xa5/0x180 [Thu Feb 19 06:25:09 2015] [] __fput+0x176/0x260 [Thu Feb 19 06:25:09 2015] [] fput+0xe/0x10 [Thu Feb 19 06:25:09 2015] [] task_work_run+0xa7/0xe0 [Thu Feb 19 06:25:09 2015] [] do_notify_resume+0x97/0xb0 [Thu Feb 19 06:25:09 2015] [] int_signal+0x12/0x17 [Thu Feb 19 06:25:09 2015] ---[ end trace ebff9843d81b5c41 ]--- [Thu Feb 19 06:25:09 2015] BUG: unable to handle kernel NULL pointer dereference at 0028 [Thu Feb 19 06:25:09 2015] IP: [] __ext4_error_inode+0x31/0x160 [Thu Feb 19 06:25:09 2015] PGD 167067 PUD 161067 PMD 0 [Thu Feb 19 06:25:09 2015] Oops: [#1] SMP [Thu Feb 19 06:25:09 2015] Modules linked in: nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 xt_owner xt_conntrack nf_conntrack iptable_filter ip_tables x_tables serio_raw psmouse floppy [Thu Feb 19 06:25:09 2015] CPU: 0 PID: 9946 Comm: logrotate Tainted: G W 3.13.0-45-generic #74-Ubuntu [Thu Feb 19 06:25:09 2015] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [Thu Feb 19 06:25:09 2015] task: 880009ac4800 ti: 880003a1 task.ti: 880003a1 [Thu Feb 19 06:25:09 2015] RIP: 0010:[] [] __ext4_error_inode+0x31/0x160 [Thu Feb 19 06:25:09 2015] RSP: :880003a11a58 EFLAGS: 00010292 [Thu Feb 19 06:25:09 2015] RAX: RBX: RCX: 0086 [Thu Feb 19 06:25:09 2015] RDX:
[Kernel-packages] [Bug 1423672] Re: ext4_mb_generate_buddy:756: group N, block bitmap and bg descriptor inconsistent: X vs Y
Same error, virtual machine 14.04 running on kvm, server 14.04. No hardware issue, the entire server was replaced after the second stop. No hard disk issue, the server is on raid hardware disk. The server is running more than one virtual server, only one affected. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1423672 Title: ext4_mb_generate_buddy:756: group N, block bitmap and bg descriptor inconsistent: X vs Y Status in linux package in Ubuntu: Incomplete Status in linux source package in Trusty: Confirmed Bug description: I noticed that one of my VM had this "dmesg -T" output: [Tue Feb 17 09:53:27 2015] systemd-udevd[5433]: starting version 204 [Thu Feb 19 06:25:08 2015] EXT4-fs error (device vda1): ext4_mb_generate_buddy:756: group 5, block bitmap and bg descriptor inconsistent: 16446 vs 16445 free clusters [Thu Feb 19 06:25:09 2015] Aborting journal on device vda1-8. [Thu Feb 19 06:25:09 2015] EXT4-fs (vda1): Remounting filesystem read-only [Thu Feb 19 06:25:09 2015] [ cut here ] [Thu Feb 19 06:25:09 2015] WARNING: CPU: 0 PID: 9946 at /build/buildd/linux-3.13.0/fs/ext4/ext4_jbd2.c:259 __ext4_handle_dirty_metadata+0x1a2/0x1c0() [Thu Feb 19 06:25:09 2015] Modules linked in: nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 xt_owner xt_conntrack nf_conntrack iptable_filter ip_tables x_tables serio_raw psmouse floppy [Thu Feb 19 06:25:09 2015] CPU: 0 PID: 9946 Comm: logrotate Not tainted 3.13.0-45-generic #74-Ubuntu [Thu Feb 19 06:25:09 2015] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [Thu Feb 19 06:25:09 2015] 0009 880003a11aa0 81720eb6 [Thu Feb 19 06:25:09 2015] 880003a11ad8 810677cd 88c41340 [Thu Feb 19 06:25:09 2015] 88000a58e000 81835280 1302 880003a11ae8 [Thu Feb 19 06:25:09 2015] Call Trace: [Thu Feb 19 06:25:09 2015] [] dump_stack+0x45/0x56 [Thu Feb 19 06:25:09 2015] [] warn_slowpath_common+0x7d/0xa0 [Thu Feb 19 06:25:09 2015] [] warn_slowpath_null+0x1a/0x20 [Thu Feb 19 06:25:09 2015] [] __ext4_handle_dirty_metadata+0x1a2/0x1c0 [Thu Feb 19 06:25:09 2015] [] ? ext4_dirty_inode+0x2a/0x60 [Thu Feb 19 06:25:09 2015] [] ext4_free_blocks+0x646/0xbf0 [Thu Feb 19 06:25:09 2015] [] ? wake_up_bit+0x25/0x30 [Thu Feb 19 06:25:09 2015] [] ext4_ext_rm_leaf+0x505/0x8f0 [Thu Feb 19 06:25:09 2015] [] ? __ext4_ext_check+0x197/0x370 [Thu Feb 19 06:25:09 2015] [] ? ext4_ext_remove_space+0xc0/0x7e0 [Thu Feb 19 06:25:09 2015] [] ext4_ext_remove_space+0x31c/0x7e0 [Thu Feb 19 06:25:09 2015] [] ext4_ext_truncate+0xb0/0xe0 [Thu Feb 19 06:25:09 2015] [] ext4_truncate+0x379/0x3c0 [Thu Feb 19 06:25:09 2015] [] ext4_evict_inode+0x408/0x4d0 [Thu Feb 19 06:25:09 2015] [] evict+0xb0/0x1b0 [Thu Feb 19 06:25:09 2015] [] iput+0xf5/0x180 [Thu Feb 19 06:25:09 2015] [] __dentry_kill+0x1a8/0x200 [Thu Feb 19 06:25:09 2015] [] dput+0xa5/0x180 [Thu Feb 19 06:25:09 2015] [] __fput+0x176/0x260 [Thu Feb 19 06:25:09 2015] [] fput+0xe/0x10 [Thu Feb 19 06:25:09 2015] [] task_work_run+0xa7/0xe0 [Thu Feb 19 06:25:09 2015] [] do_notify_resume+0x97/0xb0 [Thu Feb 19 06:25:09 2015] [] int_signal+0x12/0x17 [Thu Feb 19 06:25:09 2015] ---[ end trace ebff9843d81b5c41 ]--- [Thu Feb 19 06:25:09 2015] BUG: unable to handle kernel NULL pointer dereference at 0028 [Thu Feb 19 06:25:09 2015] IP: [] __ext4_error_inode+0x31/0x160 [Thu Feb 19 06:25:09 2015] PGD 167067 PUD 161067 PMD 0 [Thu Feb 19 06:25:09 2015] Oops: [#1] SMP [Thu Feb 19 06:25:09 2015] Modules linked in: nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 xt_owner xt_conntrack nf_conntrack iptable_filter ip_tables x_tables serio_raw psmouse floppy [Thu Feb 19 06:25:09 2015] CPU: 0 PID: 9946 Comm: logrotate Tainted: G W 3.13.0-45-generic #74-Ubuntu [Thu Feb 19 06:25:09 2015] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [Thu Feb 19 06:25:09 2015] task: 880009ac4800 ti: 880003a1 task.ti: 880003a1 [Thu Feb 19 06:25:09 2015] RIP: 0010:[] [] __ext4_error_inode+0x31/0x160 [Thu Feb 19 06:25:09 2015] RSP: :880003a11a58 EFLAGS: 00010292 [Thu Feb 19 06:25:09 2015] RAX: RBX: RCX: 0086 [Thu Feb 19 06:25:09 2015] RDX: 1302 RSI: 81a6e81f RDI: [Thu Feb 19 06:25:09 2015] RBP: 880003a11ae8 R08: 81a78568 R09: 0005 [Thu Feb 19 06:25:09 2015] R10: ffe2 R11: 880003a117ce R12: 0086 [Thu Feb 19 06:25:09 2015] R13: 81835280 R14: 13
