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Date: Mon, 4 Nov 2013 17:54:29 -0600
From: Shawn Bohrer <shawn.bohrer@...il.com>
To: linux-mm@...ck.org
Cc: linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: 3.10.16 general protection fault kmem_cache_alloc+0x67/0x170
I had a machine crash this weekend running a 3.10.16 kernel that
additionally has a few backported networking patches for performance
improvements. At this point I can't rule out that the bug isn't from
those patches, and I haven't yet tried to see if I can reproduce the
crash. I did happen to have kdump configured so I've got a crash dump
that I've been poking at but I'm not an expert here so hopefully
someone can provide some guidance on what I'm looking at and/or where
the bug might be.
Below is the more detailed info with some of my comments interspersed.
If anyone has any questions or suggestions I'd appreciate it.
[1448642.601229] general protection fault: 0000 [#1] SMP
[1448642.602448] Modules linked in: mpt2sas scsi_transport_sas raid_class mptctl mptbase dell_rbu ipmi_devintf ipmi_si ipmi_msghandler lockd 8021q mrp garp stp llc ib_ipoib rdma_ucm ib_ucm ib_uverbs ib_umad rdma_cm ib_cm iw_cm ib_addr iw_cxgb3 mlx4_ib ib_sa ib_mad ib_core mlx4_en ext4 jbd2 mbcache joydev fuse ses bnx2 coretemp mlx4_core cxgb3 hwmon mdio enclosure iTCO_wdt iTCO_vendor_support freq_table mperf wmi ehci_pci ehci_hcd dcdbas serio_raw microcode lpc_ich mfd_core sunrpc ipv6 autofs4 crc32c_intel megaraid_sas uhci_hcd dm_mirror dm_region_hash dm_log dm_mod
[1448642.616810] CPU: 11 PID: 27807 Comm: primary_nic_is_ Not tainted 3.10.16-1.rgm.fc16.x86_64 #1
[1448642.618941] Hardware name: Dell Inc. PowerEdge R610/0XDN97, BIOS 6.3.0 07/24/2012
[1448642.620639] task: ffff8806628c3880 ti: ffff880604370000 task.ti: ffff880604370000
[1448642.622335] RIP: 0010:[<ffffffff8112b117>] [<ffffffff8112b117>] kmem_cache_alloc+0x67/0x170
[1448642.624286] RSP: 0018:ffff880604371d70 EFLAGS: 00010282
[1448642.625500] RAX: 0000000000000000 RBX: ffff8806628c3880 RCX: 000000007ecb996a
[1448642.627415] RDX: 000000007ecb9969 RSI: 00000000000000d0 RDI: 0000000000015900
[1448642.629077] RBP: ffff880604371dc0 R08: ffff880667d55900 R09: 0000000000000000
[1448642.630697] R10: 0000000000000000 R11: 0000000000015ea8 R12: ffff880c67003800
[1448642.632316] R13: d17b94d6641aebfb R14: ffffffff81064d68 R15: 00000000000000d0
[1448642.633936] FS: 00007f8018827700(0000) GS:ffff880667d40000(0000) knlGS:0000000000000000
[1448642.635768] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[1448642.637497] CR2: 00000000006eded4 CR3: 000000066368b000 CR4: 00000000000007e0
[1448642.639230] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[1448642.640849] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[1448642.642468] Stack:
[1448642.642950] 00000000ffffff9c ffff8806628c3880 ffff8806628c3880 0000000000000002
[1448642.644780] ffff8806628c3880 ffff8806628c3880 0000000000000000 0000000001200011
[1448642.646848] 0000000000000000 00007f80188279d0 ffff880604371de0 ffffffff81064d68
[1448642.648987] Call Trace:
[1448642.649568] [<ffffffff81064d68>] prepare_creds+0x28/0x160
[1448642.650822] [<ffffffff81065436>] copy_creds+0x36/0x160
[1448642.652019] [<ffffffff810393e0>] copy_process+0x310/0x14b0
[1448642.653295] [<ffffffff811534f5>] ? __alloc_fd+0x45/0x110
[1448642.654529] [<ffffffff8103a64c>] do_fork+0x9c/0x280
[1448642.655668] [<ffffffff811535f0>] ? get_unused_fd_flags+0x30/0x40
[1448642.657473] [<ffffffff8114147f>] ? __do_pipe_flags+0x7f/0xc0
[1448642.658808] [<ffffffff8115362b>] ? __fd_install+0x2b/0x60
[1448642.660062] [<ffffffff8103a8b6>] SyS_clone+0x16/0x20
[1448642.661222] [<ffffffff814c2429>] stub_clone+0x69/0x90
[1448642.662399] [<ffffffff814c2182>] ? system_call_fastpath+0x16/0x1b
[1448642.663807] Code: 00 49 8b 50 08 4d 8b 28 49 8b 40 10 4d 85 ed 0f 84 f7 00 00 00 48 85 c0 0f 84 ee 00 00 00 49 63 44 24 20 48 8d 4a 01 49 8b 3c 24 <49> 8b 5c 05 00 4c 89 e8 65 48 0f c7 0f 0f 94 c0 84 c0 74 b5 49
[1448642.671081] RIP [<ffffffff8112b117>] kmem_cache_alloc+0x67/0x170
[1448642.672508] RSP <ffff880604371d70>
[1448642.673330] ---[ end trace fe4b503d6f77c801 ]---
[1448642.674408] general protection fault: 0000 [#2] SMP
[1448642.675623] Modules linked in: mpt2sas scsi_transport_sas raid_class mptctl mptbase dell_rbu ipmi_devintf ipmi_si ipmi_msghandler lockd 8021q mrp garp stp llc ib_ipoib rdma_ucm ib_ucm ib_uverbs ib_umad rdma_cm ib_cm iw_cm ib_addr iw_cxgb3 mlx4_ib ib_sa ib_mad ib_core mlx4_en ext4 jbd2 mbcache joydev fuse ses bnx2 coretemp mlx4_core cxgb3 hwmon mdio enclosure iTCO_wdt iTCO_vendor_support freq_table mperf wmi ehci_pci ehci_hcd dcdbas serio_raw microcode lpc_ich mfd_core sunrpc ipv6 autofs4 crc32c_intel megaraid_sas uhci_hcd dm_mirror dm_region_hash dm_log dm_mod
[1448642.690185] CPU: 11 PID: 27807 Comm: primary_nic_is_ Tainted: G D 3.10.16-1.rgm.fc16.x86_64 #1
[1448642.692328] Hardware name: Dell Inc. PowerEdge R610/0XDN97, BIOS 6.3.0 07/24/2012
[1448642.694027] task: ffff8806628c3880 ti: ffff880604370000 task.ti: ffff880604370000
[1448642.695726] RIP: 0010:[<ffffffff8112b117>] [<ffffffff8112b117>] kmem_cache_alloc+0x67/0x170
[1448642.698133] RSP: 0018:ffff880667d43ad0 EFLAGS: 00010282
[1448642.792981] RAX: 0000000000000000 RBX: ffffffff81a9c580 RCX: 000000007ecb996a
[1448642.889673] RDX: 000000007ecb9969 RSI: 0000000000000020 RDI: 0000000000015900
[1448642.994115] RBP: ffff880667d43b20 R08: ffff880667d55900 R09: ffffffff81a9e5a0
[1448643.090682] R10: 00000000000043c7 R11: 000000003430080a R12: ffff880c67003800
[1448643.188603] R13: d17b94d6641aebfb R14: ffffffff81412f2a R15: 0000000000000020
[1448643.285514] FS: 00007f8018827700(0000) GS:ffff880667d40000(0000) knlGS:0000000000000000
[1448643.383646] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[1448643.492593] CR2: 00000000006eded4 CR3: 000000066368b000 CR4: 00000000000007e0
[1448643.611447] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[1448643.725885] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[1448643.842044] Stack:
[1448643.951844] ffff880c623d6300 0000000000000000 000000000000003c ffffffff81ac3470
[1448644.064382] 0000000000000002 ffffffff81a9c580 ffff880664ba8800 0000000000000001
[1448644.172037] 00000000ffffffff 0000000000000011 ffff880667d43b70 ffffffff81412f2a
[1448644.275773] Call Trace:
[1448644.381953] <IRQ>
[1448644.382607]
[1448644.481603] [<ffffffff81412f2a>] dst_alloc+0x5a/0x180
[1448644.582555] [<ffffffff8143c08c>] rt_dst_alloc+0x4c/0x50
[1448644.682248] [<ffffffff8143d6af>] ip_route_input_noref+0x58f/0x930
[1448644.780543] [<ffffffff8146e28c>] ? udp_v4_early_demux+0x19c/0x400
[1448644.876777] [<ffffffff8143f98a>] ip_rcv_finish+0x18a/0x320
[1448644.971530] [<ffffffff814400cb>] ip_rcv+0x1fb/0x300
[1448645.065453] [<ffffffff8140aee2>] __netif_receive_skb_core+0x622/0x7b0
[1448645.154238] [<ffffffff8140b091>] __netif_receive_skb+0x21/0x70
[1448645.232660] [<ffffffff8140b281>] netif_receive_skb+0x31/0xb0
[1448645.309863] [<ffffffffa05ff6da>] mlx4_en_process_rx_cq+0x3aa/0x860 [mlx4_en]
[1448645.387368] [<ffffffffa05ffc2f>] mlx4_en_poll_rx_cq+0x3f/0x80 [mlx4_en]
[1448645.466734] [<ffffffff8140b989>] net_rx_action+0x119/0x220
[1448645.545289] [<ffffffff81043158>] __do_softirq+0xd8/0x280
[1448645.621214] [<ffffffff8107e524>] ? tick_program_event+0x24/0x30
[1448645.696725] [<ffffffff81062c31>] ? hrtimer_interrupt+0x141/0x240
[1448645.772942] [<ffffffff814c333c>] call_softirq+0x1c/0x30
[1448645.849316] [<ffffffff81004105>] do_softirq+0x55/0x90
[1448645.925047] [<ffffffff81043435>] irq_exit+0x65/0x70
[1448646.004842] [<ffffffff814c394e>] smp_apic_timer_interrupt+0x6e/0x99
[1448646.080536] [<ffffffff814c2cca>] apic_timer_interrupt+0x6a/0x70
[1448646.155253] <EOI>
[1448646.155756]
[1448646.230661] [<ffffffff8103d8e6>] ? vprintk_emit+0x1d6/0x520
[1448646.304905] [<ffffffff814b103a>] printk+0x4d/0x4f
[1448646.379754] [<ffffffff8103b313>] print_oops_end_marker+0x23/0x30
[1448646.455985] [<ffffffff8103b49f>] oops_exit+0x1f/0x30
[1448646.533918] [<ffffffff814baceb>] oops_end+0x7b/0xf0
[1448646.608695] [<ffffffff81005758>] die+0x58/0x90
[1448646.682638] [<ffffffff81064d68>] ? prepare_creds+0x28/0x160
[1448646.757149] [<ffffffff814ba80c>] do_general_protection+0xdc/0x160
[1448646.832144] [<ffffffff814ba202>] general_protection+0x22/0x30
[1448646.908595] [<ffffffff81064d68>] ? prepare_creds+0x28/0x160
[1448646.988953] [<ffffffff8112b117>] ? kmem_cache_alloc+0x67/0x170
[1448647.065142] [<ffffffff81064d68>] prepare_creds+0x28/0x160
[1448647.138887] [<ffffffff81065436>] copy_creds+0x36/0x160
[1448647.211415] [<ffffffff810393e0>] copy_process+0x310/0x14b0
[1448647.283149] [<ffffffff811534f5>] ? __alloc_fd+0x45/0x110
[1448647.353624] [<ffffffff8103a64c>] do_fork+0x9c/0x280
[1448647.423532] [<ffffffff811535f0>] ? get_unused_fd_flags+0x30/0x40
[1448647.497069] [<ffffffff8114147f>] ? __do_pipe_flags+0x7f/0xc0
[1448647.568373] [<ffffffff8115362b>] ? __fd_install+0x2b/0x60
[1448647.633917] [<ffffffff8103a8b6>] SyS_clone+0x16/0x20
[1448647.697775] [<ffffffff814c2429>] stub_clone+0x69/0x90
[1448647.758626] [<ffffffff814c2182>] ? system_call_fastpath+0x16/0x1b
[1448647.818728] Code: 00 49 8b 50 08 4d 8b 28 49 8b 40 10 4d 85 ed 0f 84 f7 00 00 00 48 85 c0 0f 84 ee 00 00 00 49 63 44 24 20 48 8d 4a 01 49 8b 3c 24 <49> 8b 5c 05 00 4c 89 e8 65 48 0f c7 0f 0f 94 c0 84 c0 74 b5 49
[1448647.948966] RIP [<ffffffff8112b117>] kmem_cache_alloc+0x67/0x170
[1448648.021914] RSP <ffff880667d43ad0>
Here is the same backtrace from crash:
crash> bt
PID: 27807 TASK: ffff8806628c3880 CPU: 11 COMMAND: "primary_nic_is_"
#0 [ffff880667d43870] machine_kexec at ffffffff81029c72
#1 [ffff880667d438c0] crash_kexec at ffffffff8108cf98
#2 [ffff880667d43990] oops_end at ffffffff814bad28
#3 [ffff880667d439c0] die at ffffffff81005758
#4 [ffff880667d439f0] do_general_protection at ffffffff814ba80c
#5 [ffff880667d43a20] general_protection at ffffffff814ba202
[exception RIP: kmem_cache_alloc+103]
RIP: ffffffff8112b117 RSP: ffff880667d43ad0 RFLAGS: 00010282
RAX: 0000000000000000 RBX: ffffffff81a9c580 RCX: 000000007ecb996a
RDX: 000000007ecb9969 RSI: 0000000000000020 RDI: 0000000000015900
RBP: ffff880667d43b20 R8: ffff880667d55900 R9: ffffffff81a9e5a0
R10: 00000000000043c7 R11: 000000003430080a R12: ffff880c67003800
R13: d17b94d6641aebfb R14: ffffffff81412f2a R15: 0000000000000020
ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018
#6 [ffff880667d43b28] dst_alloc at ffffffff81412f2a
#7 [ffff880667d43b78] rt_dst_alloc at ffffffff8143c08c
#8 [ffff880667d43b88] ip_route_input_noref at ffffffff8143d6af
#9 [ffff880667d43c48] ip_rcv_finish at ffffffff8143f98a
#10 [ffff880667d43c78] ip_rcv at ffffffff814400cb
#11 [ffff880667d43cb8] __netif_receive_skb_core at ffffffff8140aee2
#12 [ffff880667d43d28] __netif_receive_skb at ffffffff8140b091
#13 [ffff880667d43d48] netif_receive_skb at ffffffff8140b281
#14 [ffff880667d43d78] mlx4_en_process_rx_cq at ffffffffa05ff6da [mlx4_en]
#15 [ffff880667d43e18] mlx4_en_poll_rx_cq at ffffffffa05ffc2f [mlx4_en]
#16 [ffff880667d43e58] net_rx_action at ffffffff8140b989
#17 [ffff880667d43ec8] __do_softirq at ffffffff81043158
#18 [ffff880667d43f48] call_softirq at ffffffff814c333c
#19 [ffff880667d43f60] do_softirq at ffffffff81004105
#20 [ffff880667d43f80] irq_exit at ffffffff81043435
#21 [ffff880667d43f90] smp_apic_timer_interrupt at ffffffff814c394e
#22 [ffff880667d43fb0] apic_timer_interrupt at ffffffff814c2cca
--- <IRQ stack> ---
#23 [ffff880604371a88] apic_timer_interrupt at ffffffff814c2cca
[exception RIP: vprintk_emit+470]
RIP: ffffffff8103d8e6 RSP: ffff880604371b38 RFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000092 RCX: ffff880667d4e9e0
RDX: 0000000000000000 RSI: ffff880667d4ce68 RDI: ffff880667d4ce60
RBP: ffff880604371ba8 R8: 0000000000000000 R9: 0000000000000000
R10: 00000000000003c7 R11: 0000000000000001 R12: 0000000000000004
R13: 0000000000000001 R14: 0000000000000036 R15: ffffffff81abcf00
ORIG_RAX: ffffffffffffff10 CS: 0010 SS: 0018
#24 [ffff880604371bb0] printk at ffffffff814b103a
#25 [ffff880604371c10] print_oops_end_marker at ffffffff8103b313
#26 [ffff880604371c20] oops_exit at ffffffff8103b49f
#27 [ffff880604371c30] oops_end at ffffffff814baceb
#28 [ffff880604371c60] die at ffffffff81005758
#29 [ffff880604371c90] do_general_protection at ffffffff814ba80c
#30 [ffff880604371cc0] general_protection at ffffffff814ba202
[exception RIP: kmem_cache_alloc+103]
RIP: ffffffff8112b117 RSP: ffff880604371d70 RFLAGS: 00010282
RAX: 0000000000000000 RBX: ffff8806628c3880 RCX: 000000007ecb996a
RDX: 000000007ecb9969 RSI: 00000000000000d0 RDI: 0000000000015900
RBP: ffff880604371dc0 R8: ffff880667d55900 R9: 0000000000000000
R10: 0000000000000000 R11: 0000000000015ea8 R12: ffff880c67003800
R13: d17b94d6641aebfb R14: ffffffff81064d68 R15: 00000000000000d0
ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018
#31 [ffff880604371dc8] prepare_creds at ffffffff81064d68
#32 [ffff880604371de8] copy_creds at ffffffff81065436
#33 [ffff880604371e28] copy_process at ffffffff810393e0
#34 [ffff880604371eb8] do_fork at ffffffff8103a64c
#35 [ffff880604371f38] sys_clone at ffffffff8103a8b6
#36 [ffff880604371f48] stub_clone at ffffffff814c2429
RIP: 0000003ef6abd8a6 RSP: 00007fff494ae490 RFLAGS: 00000246
RAX: 0000000000000038 RBX: 00007fff494ae490 RCX: ffffffffffffffff
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 00007fff494ae510 R8: 0000000000006c9f R9: 00007f8018827700
R10: 00007f80188279d0 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000006c9f R14: 0000003199954fe3 R15: 0000000000000001
ORIG_RAX: 0000000000000038 CS: 0033 SS: 002b
So it looks to me like the first fault was in a clone system call
when prepare_creds() called kmem_cache_alloc(), then shortly afterward
I received a network packet and faulted again when dst_alloc() called
kmem_cache_alloc(). Both events happened on CPU 11.
Looking at the arguments passed into kmem_cache_alloc:
crash> print cred_jar
$13 = (struct kmem_cache *) 0xffff880c67003800
crash> print ipv4_dst_ops.kmem_cachep
$15 = (struct kmem_cache *) 0xffff880c67003800
Both are using the same kmem_cache pointer.
crash> struct kmem_cache 0xffff880c67003800
struct kmem_cache {
cpu_slab = 0x15900,
flags = 1073741824,
min_partial = 5,
size = 192,
object_size = 192,
offset = 0,
cpu_partial = 30,
oo = {
x = 65578
},
max = {
x = 65578
},
min = {
x = 21
},
allocflags = 16384,
refcount = 10,
ctor = 0,
inuse = 192,
align = 8,
reserved = 0,
name = 0xffff880c67001010 "kmalloc-192",
list = {
next = 0xffff880c67003968,
prev = 0xffff880c67003768
},
kobj = {
name = 0xffff880662b84860 ":t-0000192",
entry = {
next = 0xffff880c67003980,
prev = 0xffff880c67003780
},
parent = 0xffff880662b5f078,
kset = 0xffff880662b5f060,
ktype = 0xffffffff81a4fda0,
sd = 0xffff880662b9f150,
kref = {
refcount = {
counter = 1
}
},
state_initialized = 1,
state_in_sysfs = 1,
state_add_uevent_sent = 1,
state_remove_uevent_sent = 0,
uevent_suppress = 0
},
remote_node_defrag_ratio = 1000,
node = {0xffff880c67000f00, 0xffff880667800f00, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x158e0, 0x40000000, 0x5, 0x8000000080, 0x1e00000000, 0x20, 0x20, 0x20, 0x700000000, 0x0, 0x800000080, 0x0, 0xffff880c67001060, 0xffff880c67003a68, 0xffff880c67003868, 0xffff880662b84890, 0xffff880c67003a80, 0xffff880c67003880, 0xffff880662b5f078, 0xffff880662b5f060, 0xffffffff81a4fda0, 0xffff880662ba8000, 0x700000001, 0x3e8, 0xffff880c67000100, 0xffff880667800100, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x158c0, 0x40000000, 0x5, 0x6000000060, 0x1e00000000, 0x2a, 0x2a, 0x2a, 0x100000000, 0x0, 0x800000060, 0x0, 0xffff880c67001000, 0xffff880c67003b68, 0xffff880c67003968, 0xffff880662b848c0, 0xffff880c67003b80, 0xffff880c67003980, 0xffff880662b5f078, 0xffff880662b5f060, 0xffffffff81a4fda0, 0xffff880662ba8e70, 0x700000001, 0x3e8, 0xffff880c67000f40, 0xffff880667800f40, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x158a0, 0x40000000, 0x5, 0x4000000040, 0x1e00000000, 0x40, 0x40, 0x40, 0xa00000000, 0x0, 0x800000040, 0x0, 0xffff880c67001050, 0xffff880c67003c68, 0xffff880c67003a68, 0xffff880662b848f0, 0xffff880c67003c80, 0xffff880c67003a80, 0xffff880662b5f078, 0xffff880662b5f060, 0xffffffff81a4fda0, 0xffff880662ba9d20, 0x700000001, 0x3e8, 0xffff880c670000c0, 0xffff8806678000c0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x15880, 0x40000000, 0x5, 0x2000000020, 0x1e00000000, 0x80, 0x80, 0x80, 0x600000000, 0x0, 0x800000020, 0x0, 0xffff880c67001040, 0xffff880c67003d68, 0xffff880c67003b68, 0xffff880662b84920, 0xffff880c67003d80, 0xffff880c67003b80, 0xffff880662b5f078, 0xffff880662b5f060, 0xffffffff81a4fda0, 0xffff880662baabd0, 0x700000001, 0x3e8, 0xffff880c67000f80, 0xffff880667800f80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x15860, 0x40000000, 0x5, 0x1000000010, 0x1e00000000, 0x100, 0x100, 0x100, 0x100000000, 0x0, 0x800000010, 0x0, 0xffff880c67001030, 0xffff880c67003e68, 0xffff880c67003c68, 0xffff880662b84950, 0xffff880c67003e80, 0xffff880c67003c80, 0xffff880662b5f078, 0xffff880662b5f060, 0xffffffff81a4fda0, 0xffff880662baba80, 0x700000001, 0x3e8, 0xffff880c67000080, 0xffff880667800080, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x15840, 0x40000000, 0x5, 0x800000008, 0x1e00000000, 0x200, 0x200, 0x200, 0x100000000, 0x0, 0x800000008, 0x0, 0xffff880c67001020, 0xffff880c67003f68, 0xffff880c67003d68, 0xffff880662b84980, 0xffff880c67003f80, 0xffff880c67003d80, 0xffff880662b5f078, 0xffff880662b5f060, 0xffffffff81a4fda0, 0xffff880662bac930, 0x700000001, 0x3e8, 0xffff880c67000fc0, 0xffff880667800fc0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x15800, 0x40002000, 0x5, 0x4000000040, 0x1e00000000, 0x40, 0x40, 0x40, 0xffffffff00000000, 0x0, 0x4000000040, 0x0, 0xffffffff817a9ba4, 0xffff880c67002068, 0xffff880c67003e68, 0xffff880662b849b0, 0xffff880c67002080, 0xffff880c67003e80, 0xffff880662b5f078, 0xffff880662b5f060, 0xffffffff81a4fda0, 0xffff880662bad7e0, 0x700000001, 0x3e8, 0xffff880c67000000, 0xffff880667800000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6c616d6b2d616d64, 0x343230312d636f6c, 0x0, 0x0, 0x6c616d6b2d616d64, 0x383430322d636f6c, 0x0, 0x0, 0x6c616d6b2d616d64, 0x363930342d636f6c, 0x0, 0x0, 0x6c616d6b2d616d64, 0x323931382d636f6c, 0x0, 0x0, 0x705f646572616873, 0x6f6e5f7963696c6f, 0x6564, 0x0, 0x3000000000, 0x0, 0x0, 0x0...}
}
The cpu_slab pointer doesn't look valid to me and maybe that is the
problem.
crash> struct kmem_cache_cpu 0x15900
struct: invalid kernel virtual address: 0x15900
Here is the disassembly of the crash with source lines with should
match a stock 3.10.16:
crash> dis -lr kmem_cache_alloc+103
/usr/src/debug/kernel-3.10.fc16/linux-3.10.16-1.rgm.fc16.x86_64/mm/slub.c: 2406
0xffffffff8112b0b0 <kmem_cache_alloc>: data32 data32 data32 xchg %ax,%ax
0xffffffff8112b0b5 <kmem_cache_alloc+5>: push %rbp
0xffffffff8112b0b6 <kmem_cache_alloc+6>: mov %rsp,%rbp
0xffffffff8112b0b9 <kmem_cache_alloc+9>: push %r15
0xffffffff8112b0bb <kmem_cache_alloc+11>: mov %esi,%r15d
0xffffffff8112b0be <kmem_cache_alloc+14>: push %r14
0xffffffff8112b0c0 <kmem_cache_alloc+16>: push %r13
0xffffffff8112b0c2 <kmem_cache_alloc+18>: push %r12
0xffffffff8112b0c4 <kmem_cache_alloc+20>: mov %rdi,%r12
0xffffffff8112b0c7 <kmem_cache_alloc+23>: push %rbx
0xffffffff8112b0c8 <kmem_cache_alloc+24>: sub $0x28,%rsp
/usr/src/debug/kernel-3.10.fc16/linux-3.10.16-1.rgm.fc16.x86_64/mm/slub.c: 924
0xffffffff8112b0cc <kmem_cache_alloc+28>: mov 0x9930de(%rip),%eax # 0xffffffff81abe1b0
/usr/src/debug/kernel-3.10.fc16/linux-3.10.16-1.rgm.fc16.x86_64/mm/slub.c: 2407
0xffffffff8112b0d2 <kmem_cache_alloc+34>: mov 0x8(%rbp),%r14
/usr/src/debug/kernel-3.10.fc16/linux-3.10.16-1.rgm.fc16.x86_64/mm/slub.c: 924
0xffffffff8112b0d6 <kmem_cache_alloc+38>: and %esi,%eax
/usr/src/debug/kernel-3.10.fc16/linux-3.10.16-1.rgm.fc16.x86_64/mm/slub.c: 926
0xffffffff8112b0d8 <kmem_cache_alloc+40>: test $0x10,%al
0xffffffff8112b0da <kmem_cache_alloc+42>: jne 0xffffffff8112b1e8 <kmem_cache_alloc+312>
/usr/src/debug/kernel-3.10.fc16/linux-3.10.16-1.rgm.fc16.x86_64/mm/slub.c: 2348
0xffffffff8112b0e0 <kmem_cache_alloc+48>: mov (%r12),%r8
0xffffffff8112b0e4 <kmem_cache_alloc+52>: add %gs:0xcc28,%r8
/usr/src/debug/kernel-3.10.fc16/linux-3.10.16-1.rgm.fc16.x86_64/mm/slub.c: 2356
0xffffffff8112b0ed <kmem_cache_alloc+61>: mov 0x8(%r8),%rdx
/usr/src/debug/kernel-3.10.fc16/linux-3.10.16-1.rgm.fc16.x86_64/mm/slub.c: 2359
0xffffffff8112b0f1 <kmem_cache_alloc+65>: mov (%r8),%r13
/usr/src/debug/kernel-3.10.fc16/linux-3.10.16-1.rgm.fc16.x86_64/mm/slub.c: 2360
0xffffffff8112b0f4 <kmem_cache_alloc+68>: mov 0x10(%r8),%rax
/usr/src/debug/kernel-3.10.fc16/linux-3.10.16-1.rgm.fc16.x86_64/mm/slub.c: 2361
0xffffffff8112b0f8 <kmem_cache_alloc+72>: test %r13,%r13
0xffffffff8112b0fb <kmem_cache_alloc+75>: je 0xffffffff8112b1f8 <kmem_cache_alloc+328>
/usr/src/debug/kernel-3.10.fc16/linux-3.10.16-1.rgm.fc16.x86_64/mm/slub.c: 2046
0xffffffff8112b101 <kmem_cache_alloc+81>: test %rax,%rax
0xffffffff8112b104 <kmem_cache_alloc+84>: je 0xffffffff8112b1f8 <kmem_cache_alloc+328>
/usr/src/debug/kernel-3.10.fc16/linux-3.10.16-1.rgm.fc16.x86_64/mm/slub.c: 251
0xffffffff8112b10a <kmem_cache_alloc+90>: movslq 0x20(%r12),%rax
/usr/src/debug/kernel-3.10.fc16/linux-3.10.16-1.rgm.fc16.x86_64/mm/slub.c: 1683
0xffffffff8112b10f <kmem_cache_alloc+95>: lea 0x1(%rdx),%rcx
/usr/src/debug/kernel-3.10.fc16/linux-3.10.16-1.rgm.fc16.x86_64/mm/slub.c: 2379
0xffffffff8112b113 <kmem_cache_alloc+99>: mov (%r12),%rdi
/usr/src/debug/kernel-3.10.fc16/linux-3.10.16-1.rgm.fc16.x86_64/mm/slub.c: 251
0xffffffff8112b117 <kmem_cache_alloc+103>: mov 0x0(%r13,%rax,1),%rbx
The crash utility also has some macros to analyze the SLAB caches but
the output doesn't mean much to me. The only thing that stood out to
me was that CPU 11 appears that everything is allocated. The full
output of that is below for the cache in question. I'm guessing the
problem here was the bad cpu_slab pointer but beyond that I'm not
sure.
CACHE NAME OBJSIZE ALLOCATED TOTAL SLABS SSIZE
ffff880c67003800 kmalloc-192 192 8867 14910 355 8k
CPU 0 SLAB:
SLAB MEMORY NODE TOTAL ALLOCATED FREE
ffffea0031740e80 ffff880c5d03a000 0 40 40 0
FREE / [ALLOCATED]
[ffff880c5d03a000]
ffff880c5d03a0c0 (cpu 0 cache)
ffff880c5d03a180 (cpu 0 cache)
ffff880c5d03a240 (cpu 0 cache)
[ffff880c5d03a300]
[ffff880c5d03a3c0]
ffff880c5d03a480 (cpu 0 cache)
ffff880c5d03a540 (cpu 0 cache)
[ffff880c5d03a600]
ffff880c5d03a6c0 (cpu 0 cache)
ffff880c5d03a780 (cpu 0 cache)
ffff880c5d03a840 (cpu 0 cache)
ffff880c5d03a900 (cpu 0 cache)
ffff880c5d03a9c0 (cpu 0 cache)
[ffff880c5d03aa80]
ffff880c5d03ab40 (cpu 0 cache)
[ffff880c5d03ac00]
[ffff880c5d03acc0]
[ffff880c5d03ad80]
ffff880c5d03ae40 (cpu 0 cache)
ffff880c5d03af00 (cpu 0 cache)
ffff880c5d03afc0 (cpu 0 cache)
[ffff880c5d03b080]
ffff880c5d03b140 (cpu 0 cache)
ffff880c5d03b200 (cpu 0 cache)
ffff880c5d03b2c0 (cpu 0 cache)
ffff880c5d03b380 (cpu 0 cache)
ffff880c5d03b440 (cpu 0 cache)
[ffff880c5d03b500]
ffff880c5d03b5c0 (cpu 0 cache)
ffff880c5d03b680 (cpu 0 cache)
[ffff880c5d03b740]
[ffff880c5d03b800]
ffff880c5d03b8c0 (cpu 0 cache)
ffff880c5d03b980 (cpu 0 cache)
ffff880c5d03ba40 (cpu 0 cache)
ffff880c5d03bb00 (cpu 0 cache)
ffff880c5d03bbc0 (cpu 0 cache)
[ffff880c5d03bc80]
[ffff880c5d03bd40]
CPU 1 SLAB:
SLAB MEMORY NODE TOTAL ALLOCATED FREE
ffffea001311d080 ffff8804c4742000 1 29 29 0
FREE / [ALLOCATED]
[ffff8804c4742000]
ffff8804c47420c0 (cpu 1 cache)
ffff8804c4742180 (cpu 1 cache)
[ffff8804c4742240]
[ffff8804c4742300]
[ffff8804c47423c0]
[ffff8804c4742480]
ffff8804c4742540 (cpu 1 cache)
ffff8804c4742600 (cpu 1 cache)
[ffff8804c47426c0]
[ffff8804c4742780]
ffff8804c4742840 (cpu 1 cache)
ffff8804c4742900 (cpu 1 cache)
[ffff8804c47429c0]
ffff8804c4742a80 (cpu 1 cache)
ffff8804c4742b40 (cpu 1 cache)
ffff8804c4742c00 (cpu 1 cache)
[ffff8804c4742cc0]
ffff8804c4742d80 (cpu 1 cache)
ffff8804c4742e40 (cpu 1 cache)
[ffff8804c4742f00]
[ffff8804c4742fc0]
ffff8804c4743080 (cpu 1 cache)
ffff8804c4743140 (cpu 1 cache)
ffff8804c4743200 (cpu 1 cache)
ffff8804c47432c0 (cpu 1 cache)
ffff8804c4743380 (cpu 1 cache)
[ffff8804c4743440]
[ffff8804c4743500]
CPU 2 SLAB:
SLAB MEMORY NODE TOTAL ALLOCATED FREE
ffffea003161b980 ffff880c586e6000 0 37 37 0
FREE / [ALLOCATED]
[ffff880c586e6000]
ffff880c586e60c0 (cpu 2 cache)
ffff880c586e6180 (cpu 2 cache)
[ffff880c586e6240]
ffff880c586e6300 (cpu 2 cache)
ffff880c586e63c0 (cpu 2 cache)
ffff880c586e6480 (cpu 2 cache)
[ffff880c586e6540]
ffff880c586e6600 (cpu 2 cache)
[ffff880c586e66c0]
ffff880c586e6780 (cpu 2 cache)
ffff880c586e6840 (cpu 2 cache)
ffff880c586e6900 (cpu 2 cache)
ffff880c586e69c0 (cpu 2 cache)
[ffff880c586e6a80]
ffff880c586e6b40 (cpu 2 cache)
ffff880c586e6c00 (cpu 2 cache)
ffff880c586e6cc0 (cpu 2 cache)
ffff880c586e6d80 (cpu 2 cache)
ffff880c586e6e40 (cpu 2 cache)
ffff880c586e6f00 (cpu 2 cache)
ffff880c586e6fc0 (cpu 2 cache)
[ffff880c586e7080]
[ffff880c586e7140]
ffff880c586e7200 (cpu 2 cache)
ffff880c586e72c0 (cpu 2 cache)
ffff880c586e7380 (cpu 2 cache)
ffff880c586e7440 (cpu 2 cache)
ffff880c586e7500 (cpu 2 cache)
ffff880c586e75c0 (cpu 2 cache)
ffff880c586e7680 (cpu 2 cache)
ffff880c586e7740 (cpu 2 cache)
ffff880c586e7800 (cpu 2 cache)
ffff880c586e78c0 (cpu 2 cache)
ffff880c586e7980 (cpu 2 cache)
ffff880c586e7a40 (cpu 2 cache)
ffff880c586e7b00 (cpu 2 cache)
CPU 3 SLAB:
SLAB MEMORY NODE TOTAL ALLOCATED FREE
ffffea001270b280 ffff88049c2ca000 1 16 16 0
FREE / [ALLOCATED]
ffff88049c2ca000 (cpu 3 cache)
[ffff88049c2ca0c0]
[ffff88049c2ca180]
[ffff88049c2ca240]
ffff88049c2ca300 (cpu 3 cache)
[ffff88049c2ca3c0]
ffff88049c2ca480 (cpu 3 cache)
[ffff88049c2ca540]
[ffff88049c2ca600]
[ffff88049c2ca6c0]
ffff88049c2ca780 (cpu 3 cache)
[ffff88049c2ca840]
ffff88049c2ca900 (cpu 3 cache)
[ffff88049c2ca9c0]
[ffff88049c2caa80]
ffff88049c2cab40 (cpu 3 cache)
CPU 4 SLAB:
SLAB MEMORY NODE TOTAL ALLOCATED FREE
ffffea002f0ab780 ffff880bc2ade000 0 7 7 0
FREE / [ALLOCATED]
[ffff880bc2ade000]
[ffff880bc2ade0c0]
[ffff880bc2ade180]
[ffff880bc2ade240]
[ffff880bc2ade300]
[ffff880bc2ade3c0]
ffff880bc2ade480 (cpu 4 cache)
CPU 5 SLAB:
SLAB MEMORY NODE TOTAL ALLOCATED FREE
ffffea0012702780 ffff88049c09e000 1 12 12 0
FREE / [ALLOCATED]
[ffff88049c09e000]
[ffff88049c09e0c0]
[ffff88049c09e180]
ffff88049c09e240 (cpu 5 cache)
[ffff88049c09e300]
[ffff88049c09e3c0]
[ffff88049c09e480]
[ffff88049c09e540]
[ffff88049c09e600]
[ffff88049c09e6c0]
ffff88049c09e780 (cpu 5 cache)
ffff88049c09e840 (cpu 5 cache)
CPU 6 SLAB:
SLAB MEMORY NODE TOTAL ALLOCATED FREE
ffffea0031728880 ffff880c5ca22000 0 31 31 0
FREE / [ALLOCATED]
[ffff880c5ca22000]
ffff880c5ca220c0 (cpu 6 cache)
ffff880c5ca22180 (cpu 6 cache)
ffff880c5ca22240 (cpu 6 cache)
ffff880c5ca22300 (cpu 6 cache)
ffff880c5ca223c0 (cpu 6 cache)
ffff880c5ca22480 (cpu 6 cache)
ffff880c5ca22540 (cpu 6 cache)
ffff880c5ca22600 (cpu 6 cache)
[ffff880c5ca226c0]
ffff880c5ca22780 (cpu 6 cache)
[ffff880c5ca22840]
[ffff880c5ca22900]
ffff880c5ca229c0 (cpu 6 cache)
[ffff880c5ca22a80]
ffff880c5ca22b40 (cpu 6 cache)
ffff880c5ca22c00 (cpu 6 cache)
ffff880c5ca22cc0 (cpu 6 cache)
[ffff880c5ca22d80]
ffff880c5ca22e40 (cpu 6 cache)
[ffff880c5ca22f00]
ffff880c5ca22fc0 (cpu 6 cache)
[ffff880c5ca23080]
[ffff880c5ca23140]
ffff880c5ca23200 (cpu 6 cache)
ffff880c5ca232c0 (cpu 6 cache)
ffff880c5ca23380 (cpu 6 cache)
ffff880c5ca23440 (cpu 6 cache)
ffff880c5ca23500 (cpu 6 cache)
ffff880c5ca235c0 (cpu 6 cache)
ffff880c5ca23680 (cpu 6 cache)
CPU 7 SLAB:
SLAB MEMORY NODE TOTAL ALLOCATED FREE
ffffea003184aa00 ffff880c612a8000 0 19 19 0
FREE / [ALLOCATED]
[ffff880c612a8000]
ffff880c612a80c0 (cpu 7 cache)
[ffff880c612a8180]
ffff880c612a8240 (cpu 7 cache)
[ffff880c612a8300]
[ffff880c612a83c0]
[ffff880c612a8480]
[ffff880c612a8540]
ffff880c612a8600 (cpu 7 cache)
ffff880c612a86c0 (cpu 7 cache)
[ffff880c612a8780]
[ffff880c612a8840]
[ffff880c612a8900]
[ffff880c612a89c0]
[ffff880c612a8a80]
[ffff880c612a8b40]
ffff880c612a8c00 (cpu 7 cache)
[ffff880c612a8cc0]
ffff880c612a8d80 (cpu 7 cache)
CPU 8 SLAB:
SLAB MEMORY NODE TOTAL ALLOCATED FREE
ffffea001812c880 ffff880604b22000 1 31 31 0
FREE / [ALLOCATED]
[ffff880604b22000]
ffff880604b220c0 (cpu 8 cache)
ffff880604b22180 (cpu 8 cache)
ffff880604b22240 (cpu 8 cache)
ffff880604b22300 (cpu 8 cache)
ffff880604b223c0 (cpu 8 cache)
ffff880604b22480 (cpu 8 cache)
[ffff880604b22540]
ffff880604b22600 (cpu 8 cache)
[ffff880604b226c0]
[ffff880604b22780]
[ffff880604b22840]
[ffff880604b22900]
ffff880604b229c0 (cpu 8 cache)
[ffff880604b22a80]
ffff880604b22b40 (cpu 8 cache)
[ffff880604b22c00]
ffff880604b22cc0 (cpu 8 cache)
[ffff880604b22d80]
[ffff880604b22e40]
[ffff880604b22f00]
ffff880604b22fc0 (cpu 8 cache)
ffff880604b23080 (cpu 8 cache)
ffff880604b23140 (cpu 8 cache)
[ffff880604b23200]
ffff880604b232c0 (cpu 8 cache)
[ffff880604b23380]
[ffff880604b23440]
ffff880604b23500 (cpu 8 cache)
ffff880604b235c0 (cpu 8 cache)
ffff880604b23680 (cpu 8 cache)
CPU 9 SLAB:
SLAB MEMORY NODE TOTAL ALLOCATED FREE
ffffea0015fa6700 ffff88057e99c000 1 26 26 0
FREE / [ALLOCATED]
[ffff88057e99c000]
[ffff88057e99c0c0]
ffff88057e99c180 (cpu 9 cache)
[ffff88057e99c240]
[ffff88057e99c300]
ffff88057e99c3c0 (cpu 9 cache)
ffff88057e99c480 (cpu 9 cache)
ffff88057e99c540 (cpu 9 cache)
ffff88057e99c600 (cpu 9 cache)
[ffff88057e99c6c0]
ffff88057e99c780 (cpu 9 cache)
ffff88057e99c840 (cpu 9 cache)
[ffff88057e99c900]
[ffff88057e99c9c0]
ffff88057e99ca80 (cpu 9 cache)
[ffff88057e99cb40]
[ffff88057e99cc00]
ffff88057e99ccc0 (cpu 9 cache)
[ffff88057e99cd80]
[ffff88057e99ce40]
ffff88057e99cf00 (cpu 9 cache)
[ffff88057e99cfc0]
[ffff88057e99d080]
ffff88057e99d140 (cpu 9 cache)
ffff88057e99d200 (cpu 9 cache)
[ffff88057e99d2c0]
CPU 10 SLAB:
SLAB MEMORY NODE TOTAL ALLOCATED FREE
ffffea002fb1c480 ffff880bec712000 0 40 40 0
FREE / [ALLOCATED]
ffff880bec712000 (cpu 10 cache)
ffff880bec7120c0 (cpu 10 cache)
ffff880bec712180 (cpu 10 cache)
ffff880bec712240 (cpu 10 cache)
ffff880bec712300 (cpu 10 cache)
[ffff880bec7123c0]
ffff880bec712480 (cpu 10 cache)
ffff880bec712540 (cpu 10 cache)
ffff880bec712600 (cpu 10 cache)
[ffff880bec7126c0]
ffff880bec712780 (cpu 10 cache)
ffff880bec712840 (cpu 10 cache)
ffff880bec712900 (cpu 10 cache)
[ffff880bec7129c0]
[ffff880bec712a80]
[ffff880bec712b40]
[ffff880bec712c00]
ffff880bec712cc0 (cpu 10 cache)
[ffff880bec712d80]
ffff880bec712e40 (cpu 10 cache)
[ffff880bec712f00]
[ffff880bec712fc0]
[ffff880bec713080]
ffff880bec713140 (cpu 10 cache)
[ffff880bec713200]
ffff880bec7132c0 (cpu 10 cache)
ffff880bec713380 (cpu 10 cache)
[ffff880bec713440]
ffff880bec713500 (cpu 10 cache)
ffff880bec7135c0 (cpu 10 cache)
ffff880bec713680 (cpu 10 cache)
ffff880bec713740 (cpu 10 cache)
ffff880bec713800 (cpu 10 cache)
ffff880bec7138c0 (cpu 10 cache)
ffff880bec713980 (cpu 10 cache)
ffff880bec713a40 (cpu 10 cache)
[ffff880bec713b00]
ffff880bec713bc0 (cpu 10 cache)
ffff880bec713c80 (cpu 10 cache)
ffff880bec713d40 (cpu 10 cache)
CPU 11 SLAB:
SLAB MEMORY NODE TOTAL ALLOCATED FREE
ffffea0029197f80 ffff880a465fe000 0 40 40 0
FREE / [ALLOCATED]
[ffff880a465fe000]
[ffff880a465fe0c0]
[ffff880a465fe180]
[ffff880a465fe240]
[ffff880a465fe300]
[ffff880a465fe3c0]
[ffff880a465fe480]
[ffff880a465fe540]
[ffff880a465fe600]
[ffff880a465fe6c0]
[ffff880a465fe780]
[ffff880a465fe840]
[ffff880a465fe900]
[ffff880a465fe9c0]
[ffff880a465fea80]
[ffff880a465feb40]
[ffff880a465fec00]
[ffff880a465fecc0]
[ffff880a465fed80]
[ffff880a465fee40]
[ffff880a465fef00]
[ffff880a465fefc0]
[ffff880a465ff080]
[ffff880a465ff140]
[ffff880a465ff200]
[ffff880a465ff2c0]
[ffff880a465ff380]
[ffff880a465ff440]
[ffff880a465ff500]
[ffff880a465ff5c0]
[ffff880a465ff680]
[ffff880a465ff740]
[ffff880a465ff800]
[ffff880a465ff8c0]
[ffff880a465ff980]
[ffff880a465ffa40]
[ffff880a465ffb00]
[ffff880a465ffbc0]
[ffff880a465ffc80]
[ffff880a465ffd40]
CPU 12 SLAB:
SLAB MEMORY NODE TOTAL ALLOCATED FREE
ffffea0030443280 ffff880c110ca000 0 34 34 0
FREE / [ALLOCATED]
ffff880c110ca000 (cpu 12 cache)
ffff880c110ca0c0 (cpu 12 cache)
[ffff880c110ca180]
ffff880c110ca240 (cpu 12 cache)
ffff880c110ca300 (cpu 12 cache)
ffff880c110ca3c0 (cpu 12 cache)
ffff880c110ca480 (cpu 12 cache)
ffff880c110ca540 (cpu 12 cache)
ffff880c110ca600 (cpu 12 cache)
ffff880c110ca6c0 (cpu 12 cache)
ffff880c110ca780 (cpu 12 cache)
ffff880c110ca840 (cpu 12 cache)
[ffff880c110ca900]
[ffff880c110ca9c0]
[ffff880c110caa80]
[ffff880c110cab40]
ffff880c110cac00 (cpu 12 cache)
ffff880c110cacc0 (cpu 12 cache)
ffff880c110cad80 (cpu 12 cache)
ffff880c110cae40 (cpu 12 cache)
ffff880c110caf00 (cpu 12 cache)
[ffff880c110cafc0]
ffff880c110cb080 (cpu 12 cache)
ffff880c110cb140 (cpu 12 cache)
[ffff880c110cb200]
ffff880c110cb2c0 (cpu 12 cache)
ffff880c110cb380 (cpu 12 cache)
ffff880c110cb440 (cpu 12 cache)
ffff880c110cb500 (cpu 12 cache)
ffff880c110cb5c0 (cpu 12 cache)
ffff880c110cb680 (cpu 12 cache)
ffff880c110cb740 (cpu 12 cache)
ffff880c110cb800 (cpu 12 cache)
ffff880c110cb8c0 (cpu 12 cache)
CPU 13 SLAB:
SLAB MEMORY NODE TOTAL ALLOCATED FREE
ffffea0018068100 ffff880601a04000 1 32 32 0
FREE / [ALLOCATED]
[ffff880601a04000]
ffff880601a040c0 (cpu 13 cache)
[ffff880601a04180]
[ffff880601a04240]
ffff880601a04300 (cpu 13 cache)
[ffff880601a043c0]
[ffff880601a04480]
[ffff880601a04540]
[ffff880601a04600]
[ffff880601a046c0]
[ffff880601a04780]
[ffff880601a04840]
[ffff880601a04900]
[ffff880601a049c0]
[ffff880601a04a80]
[ffff880601a04b40]
[ffff880601a04c00]
ffff880601a04cc0 (cpu 13 cache)
[ffff880601a04d80]
[ffff880601a04e40]
[ffff880601a04f00]
[ffff880601a04fc0]
[ffff880601a05080]
[ffff880601a05140]
[ffff880601a05200]
[ffff880601a052c0]
[ffff880601a05380]
ffff880601a05440 (cpu 13 cache)
[ffff880601a05500]
ffff880601a055c0 (cpu 13 cache)
[ffff880601a05680]
[ffff880601a05740]
CPU 14 SLAB:
SLAB MEMORY NODE TOTAL ALLOCATED FREE
ffffea0031535c80 ffff880c54d72000 0 37 37 0
FREE / [ALLOCATED]
ffff880c54d72000 (cpu 14 cache)
ffff880c54d720c0 (cpu 14 cache)
ffff880c54d72180 (cpu 14 cache)
[ffff880c54d72240]
ffff880c54d72300 (cpu 14 cache)
ffff880c54d723c0 (cpu 14 cache)
ffff880c54d72480 (cpu 14 cache)
ffff880c54d72540 (cpu 14 cache)
[ffff880c54d72600]
ffff880c54d726c0 (cpu 14 cache)
ffff880c54d72780 (cpu 14 cache)
ffff880c54d72840 (cpu 14 cache)
ffff880c54d72900 (cpu 14 cache)
ffff880c54d729c0 (cpu 14 cache)
ffff880c54d72a80 (cpu 14 cache)
ffff880c54d72b40 (cpu 14 cache)
ffff880c54d72c00 (cpu 14 cache)
ffff880c54d72cc0 (cpu 14 cache)
ffff880c54d72d80 (cpu 14 cache)
ffff880c54d72e40 (cpu 14 cache)
ffff880c54d72f00 (cpu 14 cache)
ffff880c54d72fc0 (cpu 14 cache)
ffff880c54d73080 (cpu 14 cache)
ffff880c54d73140 (cpu 14 cache)
ffff880c54d73200 (cpu 14 cache)
ffff880c54d732c0 (cpu 14 cache)
ffff880c54d73380 (cpu 14 cache)
ffff880c54d73440 (cpu 14 cache)
ffff880c54d73500 (cpu 14 cache)
ffff880c54d735c0 (cpu 14 cache)
ffff880c54d73680 (cpu 14 cache)
ffff880c54d73740 (cpu 14 cache)
ffff880c54d73800 (cpu 14 cache)
ffff880c54d738c0 (cpu 14 cache)
[ffff880c54d73980]
ffff880c54d73a40 (cpu 14 cache)
ffff880c54d73b00 (cpu 14 cache)
CPU 15 SLAB:
SLAB MEMORY NODE TOTAL ALLOCATED FREE
ffffea0018064800 ffff880601920000 1 17 17 0
FREE / [ALLOCATED]
[ffff880601920000]
ffff8806019200c0 (cpu 15 cache)
[ffff880601920180]
[ffff880601920240]
[ffff880601920300]
[ffff8806019203c0]
[ffff880601920480]
[ffff880601920540]
[ffff880601920600]
[ffff8806019206c0]
[ffff880601920780]
[ffff880601920840]
[ffff880601920900]
[ffff8806019209c0]
[ffff880601920a80]
[ffff880601920b40]
[ffff880601920c00]
KMEM_CACHE_NODE NODE SLABS PARTIAL PER-CPU
ffff880c67000f00 0 118 16 9
NODE 0 PARTIAL:
SLAB MEMORY NODE TOTAL ALLOCATED FREE
ffffea0031611f80 ffff880c5847e000 0 2 2 0
ffffea00295f5600 ffff880a57d58000 0 13 13 0
ffffea00315b4a80 ffff880c56d2a000 0 37 37 0
ffffea002d703080 ffff880b5c0c2000 0 1 1 0
ffffea0031608c80 ffff880c58232000 0 1 1 0
ffffea00318ab980 ffff880c62ae6000 0 9 9 0
ffffea0031721800 ffff880c5c860000 0 12 12 0
ffffea0031745d80 ffff880c5d176000 0 4 4 0
ffffea003161ae80 ffff880c586ba000 0 4 4 0
ffffea00318f8f00 ffff880c63e3c000 0 5 5 0
ffffea003176c680 ffff880c5db1a000 0 1 1 0
ffffea0031899e00 ffff880c62678000 0 5 5 0
ffffea00318f6f00 ffff880c63dbc000 0 36 36 0
ffffea0029196d00 ffff880a465b4000 0 2 2 0
ffffea002f0a6c00 ffff880bc29b0000 0 2 2 0
ffffea0029107f80 ffff880a441fe000 0 1 1 0
NODE 0 FULL:
(not tracked)
KMEM_CACHE_NODE NODE SLABS PARTIAL PER-CPU
ffff880667800f00 1 237 140 7
NODE 1 PARTIAL:
SLAB MEMORY NODE TOTAL ALLOCATED FREE
ffffea0011484c80 ffff880452132000 1 0 0 0
ffffea0012727d80 ffff88049c9f6000 1 0 0 0
ffffea000d770080 ffff88035dc02000 1 0 0 0
ffffea00181c1b80 ffff88060706e000 1 0 0 0
ffffea001311b880 ffff8804c46e2000 1 26 26 0
ffffea0012632780 ffff880498c9e000 1 0 0 0
ffffea00181ab880 ffff880606ae2000 1 1 1 0
ffffea001825d380 ffff88060974e000 1 13 13 0
ffffea00198ee080 ffff880663b82000 1 5 5 0
ffffea0011485780 ffff88045215e000 1 1 1 0
ffffea0018131800 ffff880604c60000 1 2 2 0
ffffea000d8c9680 ffff88036325a000 1 2 2 0
ffffea00180b9380 ffff880602e4e000 1 1 1 0
ffffea0019878280 ffff880661e0a000 1 9 9 0
ffffea0019926400 ffff880664990000 1 25 25 0
ffffea00198b6780 ffff880662d9e000 1 40 40 0
ffffea00198bfb00 ffff880662fec000 1 22 22 0
ffffea001812a880 ffff880604aa2000 1 4 4 0
ffffea00198eca00 ffff880663b28000 1 12 12 0
ffffea000d3a7800 ffff88034e9e0000 1 1 1 0
ffffea0019896180 ffff880662586000 1 11 11 0
ffffea0019853200 ffff8806614c8000 1 2 2 0
ffffea0011483200 ffff8804520c8000 1 2 2 0
ffffea0019858000 ffff880661600000 1 3 3 0
ffffea001148ff80 ffff8804523fe000 1 11 11 0
ffffea000d3ac080 ffff88034eb02000 1 1 1 0
ffffea0015fa8a80 ffff88057ea2a000 1 2 2 0
ffffea0019851c80 ffff880661472000 1 32 32 0
ffffea0018068880 ffff880601a22000 1 2 2 0
ffffea0019901000 ffff880664040000 1 15 15 0
ffffea0018167280 ffff8806059ca000 1 1 1 0
ffffea001148bd80 ffff8804522f6000 1 2 2 0
ffffea0019896d80 ffff8806625b6000 1 3 3 0
ffffea0018094900 ffff880602524000 1 7 7 0
ffffea00180bdd00 ffff880602f74000 1 2 2 0
ffffea00181d6200 ffff880607588000 1 13 13 0
ffffea0019925c80 ffff880664972000 1 34 34 0
ffffea0012722600 ffff88049c898000 1 1 1 0
ffffea001817cc80 ffff880605f32000 1 2 2 0
ffffea0019852f00 ffff8806614bc000 1 2 2 0
ffffea0018091000 ffff880602440000 1 1 1 0
ffffea0012729e00 ffff88049ca78000 1 1 1 0
ffffea001813df00 ffff880604f7c000 1 1 1 0
ffffea001818e480 ffff880606392000 1 1 1 0
ffffea001263d600 ffff880498f58000 1 1 1 0
ffffea000d6e8c00 ffff88035ba30000 1 1 1 0
ffffea001270fc80 ffff88049c3f2000 1 2 2 0
ffffea0011f96700 ffff88047e59c000 1 1 1 0
ffffea00180dd680 ffff88060375a000 1 1 1 0
ffffea000d6e2600 ffff88035b898000 1 1 1 0
ffffea00180ef080 ffff880603bc2000 1 1 1 0
ffffea0018102000 ffff880604080000 1 2 2 0
ffffea001810d900 ffff880604364000 1 1 1 0
ffffea0011f98000 ffff88047e600000 1 1 1 0
ffffea001812ca00 ffff880604b28000 1 2 2 0
ffffea00067d7600 ffff88019f5d8000 1 2 2 0
ffffea00180e9b00 ffff880603a6c000 1 2 2 0
ffffea0018158f00 ffff88060563c000 1 1 1 0
ffffea00181dc800 ffff880607720000 1 1 1 0
ffffea00180e2e80 ffff8806038ba000 1 1 1 0
ffffea00180b8080 ffff880602e02000 1 3 3 0
ffffea0018118b00 ffff88060462c000 1 2 2 0
ffffea0018193f00 ffff8806064fc000 1 1 1 0
ffffea001270c500 ffff88049c314000 1 2 2 0
ffffea001811d500 ffff880604754000 1 1 1 0
ffffea001983e300 ffff880660f8c000 1 16 16 0
ffffea0019901e80 ffff88066407a000 1 17 17 0
ffffea0018060f00 ffff88060183c000 1 5 5 0
ffffea000d3a5700 ffff88034e95c000 1 7 7 0
ffffea00180b7400 ffff880602dd0000 1 2 2 0
ffffea0012425400 ffff880490950000 1 1 1 0
ffffea001806bb00 ffff880601aec000 1 1 1 0
ffffea0018083b00 ffff8806020ec000 1 1 1 0
ffffea00180f9400 ffff880603e50000 1 1 1 0
ffffea0011484b80 ffff88045212e000 1 1 1 0
ffffea00181a5b80 ffff88060696e000 1 1 1 0
ffffea00181ec180 ffff880607b06000 1 1 1 0
ffffea0019852780 ffff88066149e000 1 2 2 0
ffffea00180dc180 ffff880603706000 1 1 1 0
ffffea00067d5200 ffff88019f548000 1 1 1 0
ffffea0015fa4100 ffff88057e904000 1 1 1 0
ffffea00067d3180 ffff88019f4c6000 1 1 1 0
ffffea0013fad680 ffff8804feb5a000 1 1 1 0
ffffea0013fa0180 ffff8804fe806000 1 2 2 0
ffffea0018064e80 ffff88060193a000 1 1 1 0
ffffea0018176580 ffff880605d96000 1 1 1 0
ffffea00067d5280 ffff88019f54a000 1 1 1 0
ffffea0018107d80 ffff8806041f6000 1 1 1 0
ffffea001311dc00 ffff8804c4770000 1 1 1 0
ffffea000d779e00 ffff88035de78000 1 1 1 0
ffffea001815e100 ffff880605784000 1 1 1 0
ffffea0013faea00 ffff8804feba8000 1 1 1 0
ffffea0018177d80 ffff880605df6000 1 1 1 0
ffffea00067d3c00 ffff88019f4f0000 1 2 2 0
ffffea001813c780 ffff880604f1e000 1 1 1 0
ffffea0018084200 ffff880602108000 1 2 2 0
ffffea0012635700 ffff880498d5c000 1 1 1 0
ffffea0012717500 ffff88049c5d4000 1 1 1 0
ffffea001242ea00 ffff880490ba8000 1 1 1 0
ffffea000d6e7f00 ffff88035b9fc000 1 1 1 0
ffffea001810d480 ffff880604352000 1 2 2 0
ffffea001270eb00 ffff88049c3ac000 1 1 1 0
ffffea001818db80 ffff88060636e000 1 1 1 0
ffffea00067d6700 ffff88019f59c000 1 2 2 0
ffffea0013fa0380 ffff8804fe80e000 1 2 2 0
ffffea00181ad780 ffff880606b5e000 1 1 1 0
ffffea0013fa6600 ffff8804fe998000 1 1 1 0
ffffea000d3adc80 ffff88034eb72000 1 1 1 0
ffffea0011f9cf80 ffff88047e73e000 1 3 3 0
ffffea0012729100 ffff88049ca44000 1 1 1 0
ffffea0013fae480 ffff8804feb92000 1 2 2 0
ffffea00198d2e80 ffff8806634ba000 1 3 3 0
ffffea0018194180 ffff880606506000 1 1 1 0
ffffea0011f91a00 ffff88047e468000 1 1 1 0
ffffea00180f7900 ffff880603de4000 1 1 1 0
ffffea0018136280 ffff880604d8a000 1 1 1 0
ffffea001987b500 ffff880661ed4000 1 18 18 0
ffffea00181c7b80 ffff8806071ee000 1 2 2 0
ffffea000d6e5000 ffff88035b940000 1 3 3 0
ffffea0018172880 ffff880605ca2000 1 20 20 0
ffffea0012632700 ffff880498c9c000 1 2 2 0
ffffea0018151b80 ffff88060546e000 1 2 2 0
ffffea0018119000 ffff880604640000 1 4 4 0
ffffea00181aa600 ffff880606a98000 1 1 1 0
ffffea00180f7f00 ffff880603dfc000 1 2 2 0
ffffea00180dc200 ffff880603708000 1 1 1 0
ffffea0018240800 ffff880609020000 1 18 18 0
ffffea00198d5080 ffff880663542000 1 1 1 0
ffffea00180cf080 ffff8806033c2000 1 1 1 0
ffffea00198e3a80 ffff8806638ea000 1 17 17 0
ffffea0018074380 ffff880601d0e000 1 1 1 0
ffffea001807c900 ffff880601f24000 1 1 1 0
ffffea0018144a00 ffff880605128000 1 2 2 0
ffffea001148af80 ffff8804522be000 1 1 1 0
ffffea0012422800 ffff8804908a0000 1 10 10 0
ffffea000d8c7a80 ffff8803631ea000 1 1 1 0
ffffea00180c5e00 ffff880603178000 1 2 2 0
ffffea00180dcf80 ffff88060373e000 1 1 1 0
ffffea001814ec80 ffff8806053b2000 1 32 32 0
ffffea0019899e80 ffff88066267a000 1 4 4 0
NODE 1 FULL:
(not tracked)
Thanks,
Shawn
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