Comment 3 for bug 1313450

That made no difference.

My configuration:
seccomp_sandbox=NO
Listen=YES
#Listen_IPV6
Anonymous=YES
#Local_enabled=YES
#Write_enabled=YES

This is taken from the kernel log (also visible in the syslogs).

Apr 29 19:03:44 ip-10-34-255-23 kernel: [21095107.160354] BUG: Bad page map in process vsftpd pte:8000000000000965 pmd:23042067
Apr 29 19:03:44 ip-10-34-255-23 kernel: [21095107.160372] page:ffffea0000000000 count:-259 mapcount:-259 mapping: (null) index:0x0
Apr 29 19:03:44 ip-10-34-255-23 kernel: [21095107.160379] page flags: 0x10(dirty)
Apr 29 19:03:44 ip-10-34-255-23 kernel: [21095107.160387] addr:00007fd251b67000 vm_flags:08100071 anon_vma:ffff88002381d700 mapping: (null) index:7fd251b67
Apr 29 19:03:44 ip-10-34-255-23 kernel: [21095107.160397] CPU: 0 PID: 14426 Comm: vsftpd Tainted: G B 3.13.0-24-generic #46-Ubuntu
Apr 29 19:03:44 ip-10-34-255-23 kernel: [21095107.160399] ffff880023ca6c00 ffff880016565c70 ffffffff81715a64 00007fd251b67000
Apr 29 19:03:44 ip-10-34-255-23 kernel: [21095107.160404] ffff880016565cb8 ffffffff81174183 8000000ffa106965 00000007fd251b67
Apr 29 19:03:44 ip-10-34-255-23 kernel: [21095107.160408] ffff880023042b38 ffffea0000000000 00007fd251b67000 00007fd251b68000
Apr 29 19:03:44 ip-10-34-255-23 kernel: [21095107.160411] Call Trace:
Apr 29 19:03:44 ip-10-34-255-23 kernel: [21095107.160421] [<ffffffff81715a64>] dump_stack+0x45/0x56
Apr 29 19:03:44 ip-10-34-255-23 kernel: [21095107.160427] [<ffffffff81174183>] print_bad_pte+0x1a3/0x250
Apr 29 19:03:44 ip-10-34-255-23 kernel: [21095107.160430] [<ffffffff81175b67>] unmap_page_range+0x717/0x7f0
Apr 29 19:03:44 ip-10-34-255-23 kernel: [21095107.160433] [<ffffffff81175cc1>] unmap_single_vma+0x81/0xf0
Apr 29 19:03:44 ip-10-34-255-23 kernel: [21095107.160436] [<ffffffff81176d39>] unmap_vmas+0x49/0x90
Apr 29 19:03:44 ip-10-34-255-23 kernel: [21095107.160441] [<ffffffff8117feec>] exit_mmap+0x9c/0x170
Apr 29 19:03:44 ip-10-34-255-23 kernel: [21095107.160445] [<ffffffff8106482c>] mmput+0x5c/0x120
Apr 29 19:03:44 ip-10-34-255-23 kernel: [21095107.160449] [<ffffffff81069bbc>] do_exit+0x26c/0xa50
Apr 29 19:03:44 ip-10-34-255-23 kernel: [21095107.160453] [<ffffffff8109dd84>] ? vtime_account_user+0x54/0x60
Apr 29 19:03:44 ip-10-34-255-23 kernel: [21095107.160459] [<ffffffff8114d52f>] ? context_tracking_user_exit+0x4f/0xc0
Apr 29 19:03:44 ip-10-34-255-23 kernel: [21095107.160462] [<ffffffff8106a41f>] do_group_exit+0x3f/0xa0
Apr 29 19:03:44 ip-10-34-255-23 kernel: [21095107.160465] [<ffffffff8106a494>] SyS_exit_group+0x14/0x20
Apr 29 19:03:44 ip-10-34-255-23 kernel: [21095107.160469] [<ffffffff8172663f>] tracesys+0xe1/0xe6
Apr 29 19:03:44 ip-10-34-255-23 kernel: [21095107.160552] BUG: Bad rss-counter state mm:ffff8800030af500 idx:0 val:-1
Apr 29 19:03:44 ip-10-34-255-23 kernel: [21095107.160559] BUG: Bad rss-counter state mm:ffff8800030af500 idx:1 val:1
Apr 29 19:03:44 ip-10-34-255-23 kernel: [21095107.195341] BUG: Bad page map in process vsftpd pte:8000000000000965 pmd:23d36067