FS#38596 - [vsftpd] fails to start with "Bad page map" kernel error
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Community Packages
Opened by Howard Guo (howardg) - Tuesday, 21 January 2014, 10:39 GMT
Last edited by Jonathan Steel (jsteel) - Friday, 13 June 2014, 18:38 GMT
Opened by Howard Guo (howardg) - Tuesday, 21 January 2014, 10:39 GMT
Last edited by Jonathan Steel (jsteel) - Friday, 13 June 2014, 18:38 GMT
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Details
My up-to-date Arch Linux installation on Amazon EC2 has
vsftpd installed. It worked for a while until a recent
kernel upgrade - sorry I cannot remember the exact version
number.
Now when I attempt to start vsftpd from systemctl, the following errors appear in syslog: Jan 21 11:38:40 ip-172-31-12-16 systemd[1]: Starting vsftpd daemon... Jan 21 11:38:40 ip-172-31-12-16 systemd[1]: Started vsftpd daemon. Jan 21 11:38:40 ip-172-31-12-16 systemd[1]: vsftpd.service: main process exited, code=exited, status=2/INVALIDARGUMENT Jan 21 11:38:40 ip-172-31-12-16 systemd[1]: Unit vsftpd.service entered failed state. Sep 27 10:18:58 ip-172-31-12-16 kernel: BUG: Bad page map in process vsftpd pte:8000000000000165 pmd:0f58a067 Sep 27 10:18:58 ip-172-31-12-16 kernel: page:ffffea0000000000 count:-2 mapcount:-2 mapping: (null) index:0x0 Sep 27 10:18:58 ip-172-31-12-16 kernel: page flags: 0x14(referenced|dirty) Sep 27 10:18:58 ip-172-31-12-16 kernel: addr:00007fa98af23000 vm_flags:00100071 anon_vma:ffff88000f52ad00 mapping: (null) index:7fa98af23 Sep 27 10:18:58 ip-172-31-12-16 kernel: CPU: 0 PID: 634 Comm: vsftpd Tainted: G B 3.12.8-1-ec2 #1 Sep 27 10:18:58 ip-172-31-12-16 kernel: ffff88000f583508 ffff88000f5d3ca0 ffffffff814c77bb 00007fa98af23000 Sep 27 10:18:58 ip-172-31-12-16 kernel: ffff88000f5d3ce8 ffffffff8116788e 0000000000000000 0000000000000000 Sep 27 10:18:58 ip-172-31-12-16 kernel: ffff88000f58a918 ffffea0000000000 00007fa98af24000 ffff88000f5d3e10 Sep 27 10:18:58 ip-172-31-12-16 kernel: Call Trace: Sep 27 10:18:58 ip-172-31-12-16 kernel: [<ffffffff814c77bb>] dump_stack+0x45/0x56 Sep 27 10:18:58 ip-172-31-12-16 kernel: [<ffffffff8116788e>] print_bad_pte+0x22e/0x250 Sep 27 10:18:58 ip-172-31-12-16 kernel: [<ffffffff811690b3>] unmap_single_vma+0x583/0x890 Sep 27 10:18:58 ip-172-31-12-16 kernel: [<ffffffff8116a445>] unmap_vmas+0x65/0x90 Sep 27 10:18:58 ip-172-31-12-16 kernel: [<ffffffff811737d5>] exit_mmap+0xc5/0x170 Sep 27 10:18:58 ip-172-31-12-16 kernel: [<ffffffff8105d295>] mmput+0x65/0x100 Sep 27 10:18:58 ip-172-31-12-16 kernel: [<ffffffff81062983>] do_exit+0x393/0x9e0 Sep 27 10:18:58 ip-172-31-12-16 kernel: [<ffffffff810630dc>] do_group_exit+0xcc/0x140 Sep 27 10:18:58 ip-172-31-12-16 kernel: [<ffffffff81063164>] SyS_exit_group+0x14/0x20 Sep 27 10:18:58 ip-172-31-12-16 kernel: [<ffffffff814d61ad>] system_call_fastpath+0x1a/0x1f Sep 27 10:18:58 ip-172-31-12-16 kernel: BUG: Bad rss-counter state mm:ffff88000f5cd080 idx:0 val:-1 Sep 27 10:18:58 ip-172-31-12-16 kernel: BUG: Bad rss-counter state mm:ffff88000f5cd080 idx:1 val:1 Kernel version: Linux 3.12.8-1-ec2 #1 SMP Mon Jan 20 09:58:48 UTC 2014 x86_64 Vsftpd version: 3.0.2-2 |
This task depends upon
[ 10.721057] BUG: Bad page map in process vsftpd pte:8000000a0bd0e165 pmd:e9c8f2067
[ 10.721070] page:ffffea00282f4380 count:0 mapcount:-1 mapping: (null) index:0x0
[ 10.721075] page flags: 0x2fc000000000014(referenced|dirty)
[ 10.721080] addr:00007f400eebd000 vm_flags:08100071 anon_vma:ffff880e9d335b40 mapping: (null) index:7f400eebd
[ 10.721087] CPU: 0 PID: 488 Comm: vsftpd Not tainted 3.12.8-1-ARCH #1
[ 10.721090] ffff880e98204da8 ffff880e996b3ca8 ffffffff814ec1e3 00007f400eebd000
[ 10.721103] ffff880e996b3cf0 ffffffff8115b014 ffffea00282f4380 0000000000000000
[ 10.721109] ffff880e9c8f25e8 ffffea00282f4380 00007f400eebe000 ffff880e996b3e18
[ 10.721116] Call Trace:
[ 10.721125] [<ffffffff814ec1e3>] dump_stack+0x54/0x8d
[ 10.721131] [<ffffffff8115b014>] print_bad_pte+0x1b4/0x270
[ 10.721136] [<ffffffff8115cc03>] unmap_single_vma+0x813/0x8e0
[ 10.721140] [<ffffffff8115de29>] unmap_vmas+0x49/0x90
[ 10.721146] [<ffffffff811671bc>] exit_mmap+0x9c/0x170
[ 10.721152] [<ffffffff8105ec19>] mmput+0x59/0x110
[ 10.721158] [<ffffffff81063fef>] do_exit+0x27f/0xab0
[ 10.721162] [<ffffffff8106489f>] do_group_exit+0x3f/0xa0
[ 10.721166] [<ffffffff81064914>] SyS_exit_group+0x14/0x20
[ 10.721170] [<ffffffff814faced>] system_call_fastpath+0x1a/0x1f
[ 10.721174] Disabling lock debugging due to kernel taint
[ 10.723219] BUG: Bad rss-counter state mm:ffff880e9c814380 idx:0 val:-1
[ 10.723224] BUG: Bad rss-counter state mm:ffff880e9c814380 idx:1 val:1
Reported upstream as well, interesting thread: https://lkml.org/lkml/2014/1/21/544
kernel: BUG: Bad page map in process vsftpd pte:8000000000000165 pmd:0230b067
kernel: page:ffffea0000000000 count:-7 mapcount:-7 mapping: (null) index:0x0
kernel: page flags: 0x10(dirty)
kernel: page dumped because: bad pte
kernel: addr:00007f0ede480000 vm_flags:00100071 anon_vma:ffff880020505000 mapping: (null) index:7f0ede480
CPU: 0 PID: 3465 Comm: vsftpd Tainted: G B 3.14.2-1-ARCH #1
0000000000000000 00000000b2454f6c ffff880011e0dc98 ffffffff8150984e
00007f0ede480000 ffff880011e0dce0 ffffffff8116d201 ffff880011e0dce0
0000000000000000 ffff88000230b400 ffffea0000000000 00007f0ede481000
Call Trace:
[<ffffffff8150984e>] dump_stack+0x4d/0x6f
[<ffffffff8116d201>] print_bad_pte+0x1c1/0x290
[<ffffffff8116ef23>] unmap_single_vma+0x833/0x8c0
[<ffffffff81170284>] unmap_vmas+0x54/0xb0
[<ffffffff8117999c>] exit_mmap+0xac/0x1a0
[<ffffffff8151273b>] ? __do_page_fault+0x2eb/0x600
[<ffffffff81067b81>] mmput+0x51/0x120
[<ffffffff8106d2d9>] do_exit+0x349/0xb10
[<ffffffff8106db23>] do_group_exit+0x43/0xc0
[<ffffffff8106dbb4>] SyS_exit_group+0x14/0x20
[<ffffffff81517629>] system_call_fastpath+0x16/0x1b
BUG: Bad rss-counter state mm:ffff880001589c00 idx:0 val:-1
BUG: Bad rss-counter state mm:ffff880001589c00 idx:1 val:1
# cat /proc/version
Linux version 3.14.2-1-ARCH (nobody@var-lib-archbuild-testing-x86_64-tobias) (gcc version 4.9.0 (GCC) ) #1 SMP PREEMPT Sun Apr 27 11:28:44 CEST 2014
https://git.kernel.org/cgit/linux/kernel/git/mel/linux-balancenuma.git/commit/?h=mm-numa-use-high-bit-v4r3&id=90689056584e7f9a2e4783f5d90e2b76ca1eda2b
This patch is part of the linux-ec2 kernel used in my AMIs.