Debian Jessie - ec2 server running a number of lxc containers which are
based off btrfs snapshots for PHP apps.
The containers have cgroup memory limits placed upon them.
( rsync would have been backing up the document roots (bind mounted into
the containers from a btrfs volume which doesn't have any snapshots etc) )
David.
------------[ cut here ]------------
kernel BUG at /build/linux-RGM_Ed/linux-3.16.7-ckt9/mm/page_alloc.c:1011!
invalid opcode: 0000 [#1] SMP
Modules linked in: ufs qnx4 hfsplus hfs minix ntfs vfat msdos fat jfs
xfs libcrc32c dm_mod binfmt_misc veth xt_multiport iptable_filter
ip_tables x_tables ip_gre ip_tunnel gre bridge stp llc nfsd auth_rpcgss
oid_registry nfs_acl nfs lockd fscache sunrpc crc32_pclmul
ghash_clmulni_intel aesni_intel ppdev ttm aes_x86_64 drm_kms_helper lrw
gf128mul glue_helper drm ablk_helper psmouse cryptd evdev i2c_piix4
serio_raw i2c_core parport_pc parport button processor thermal_sys fuse
autofs4 ext4 crc16 mbcache jbd2 btrfs xor raid6_pq ata_generic
xen_blkfront crct10dif_pclmul crct10dif_common crc32c_intel floppy
ata_piix libata scsi_mod ixgbevf
CPU: 0 PID: 18025 Comm: rsync Not tainted 3.16.0-4-amd64 #1 Debian
3.16.7-ckt9-3~deb8u1
Hardware name: Xen HVM domU, BIOS 4.2.amazon 05/06/2015
task: ffff8802369dcb60 ti: ffff880015ba4000 task.ti: ffff880015ba4000
RIP: 0010:[<ffffffff81142037>] [<ffffffff81142037>]
move_freepages+0x107/0x110
RSP: 0018:ffff880015ba7948 EFLAGS: 00010006
RAX: ffff8803e08fb000 RBX: 0000000000000000 RCX: 0000000000000001
RDX: ffffea000d922fc8 RSI: ffffea000d91c000 RDI: ffff8803e08fbe00
RBP: 0000000000000001 R08: ffff8803e08fbe00 R09: 0000000000000000
R10: 0000000000000000 R11: ffff8803e08fbeb0 R12: ffffea000d91c5e8
R13: 0000000000000000 R14: 0000000000000000 R15: ffff8803e08fbe00
FS: 00007f6709d14700(0000) GS:ffff8803e0400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f670ab0eac8 CR3: 000000039bd7e000 CR4: 00000000001406f0
Stack:
ffffffff81143a6c 0000000000000000 000000020000024c ffffea000d91c608
ffff8803e08fbe90 0000000100000000 0000000000000000 ffff8803e08fbe00
000000000000001f 0000000000000000 0000000000000001 000000000000001e
Call Trace:
[<ffffffff81143a6c>] ? __rmqueue+0x37c/0x460
[<ffffffff81145c65>] ? get_page_from_freelist+0x685/0x910
[<ffffffff8114605d>] ? __alloc_pages_nodemask+0x16d/0xb30
[<ffffffffa013de17>] ? btrfs_get_token_16+0x57/0xf0 [btrfs]
[<ffffffffa00fe8d1>] ? btrfs_set_path_blocking+0x31/0x70 [btrfs]
[<ffffffff811c10fc>] ? find_inode+0x6c/0x90
[<ffffffffa0128920>] ? btrfs_clean_one_deleted_snapshot+0x110/0x110
[btrfs]
[<ffffffffa0128c90>] ? create_pinned_em+0x130/0x130 [btrfs]
[<ffffffff8118c8fb>] ? kmem_getpages+0x5b/0x110
[<ffffffff8118dbeb>] ? cache_grow+0x21b/0x240
[<ffffffff8118e623>] ? kmem_cache_alloc+0x183/0x450
[<ffffffff811bf630>] ? __d_alloc+0x20/0x170
[<ffffffff811bf793>] ? d_alloc+0x13/0x70
[<ffffffff811b15eb>] ? lookup_dcache+0x8b/0xc0
[<ffffffff811b163a>] ? __lookup_hash+0x1a/0x40
[<ffffffff81509d67>] ? lookup_slow+0x3e/0xa3
[<ffffffff811b3c15>] ? path_lookupat+0x715/0x780
[<ffffffff8119dcb4>] ? __mem_cgroup_commit_charge+0x84/0x370
[<ffffffff811b3ca6>] ? filename_lookup+0x26/0xc0
[<ffffffff811b7d94>] ? user_path_at_empty+0x54/0x90
[<ffffffff810eb46e>] ? from_kgid_munged+0xe/0x20
[<ffffffff811accaa>] ? cp_new_stat+0x13a/0x160
[<ffffffff811ac856>] ? vfs_fstatat+0x46/0x90
[<ffffffff811acd2d>] ? SYSC_newlstat+0x1d/0x40
[<ffffffff81510e4d>] ? system_call_fast_compare_end+0x10/0x15
Code: e1 4c 89 56 10 4d 63 c1 44 89 c9 4e 8d 0c c5 00 00 00 00 49 c1 e0
06 01 c8 4d 29 c8 4c 01 c6 48 39 f2 73 89 5b 5d 41 5c 41 5d c3 <0f> 0b
0f 1f 80 00 00 00 00 0f 1f 44 00 00 49 b9 00 00 00 00 00
RIP [<ffffffff81142037>] move_freepages+0x107/0x110
RSP <ffff880015ba7948>
---[ end trace fcc878a87658ea75 ]---
--
David Goodwin
http://codepoets.co.uk
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