I got some additional information from syslog:
Jul 22 09:49:33 dommy0 kernel: [ 675.987890] NMI watchdog: BUG: soft
lockup - CPU#3 stuck for 22s! [kworker/3:1:42]
Jul 22 09:49:42 dommy0 kernel: [ 685.114033] INFO: rcu_sched
self-detected stall on CPU { 3} (t=39918 jiffies g=988 c=987 q=23168)
Thanks,
Frank
Op 7/22/2015 om 10:09 AM schreef Frank Schreuder:
Op 7/21/2015 om 8:34 PM schreef Florian Westphal:
Frank Schreuder <fschreu...@transip.nl> wrote:
[ inet frag evictor crash ]
We believe we found the bug. This patch should fix it.
We cannot share list for buckets and evictor, the flag member is
subject to race conditions so flags & INET_FRAG_EVICTED test is not
reliable.
It would be great if you could confirm that this fixes the problem
for you, we'll then make formal patch submission.
Please apply this on kernel without previous test patches, wheter you
use affected -stable or net-next kernel shouldn't matter since those are
similar enough.
Many thanks!
diff --git a/include/net/inet_frag.h b/include/net/inet_frag.h
--- a/include/net/inet_frag.h
+++ b/include/net/inet_frag.h
@@ -45,6 +45,7 @@ enum {
* @flags: fragment queue flags
* @max_size: maximum received fragment size
* @net: namespace that this frag belongs to
+ * @list_evictor: list of queues to forcefully evict (e.g. due to
low memory)
*/
struct inet_frag_queue {
spinlock_t lock;
@@ -59,6 +60,7 @@ struct inet_frag_queue {
__u8 flags;
u16 max_size;
struct netns_frags *net;
+ struct hlist_node list_evictor;
};
#define INETFRAGS_HASHSZ 1024
diff --git a/net/ipv4/inet_fragment.c b/net/ipv4/inet_fragment.c
index 5e346a0..1722348 100644
--- a/net/ipv4/inet_fragment.c
+++ b/net/ipv4/inet_fragment.c
@@ -151,14 +151,13 @@ evict_again:
}
fq->flags |= INET_FRAG_EVICTED;
- hlist_del(&fq->list);
- hlist_add_head(&fq->list, &expired);
+ hlist_add_head(&fq->list_evictor, &expired);
++evicted;
}
spin_unlock(&hb->chain_lock);
- hlist_for_each_entry_safe(fq, n, &expired, list)
+ hlist_for_each_entry_safe(fq, n, &expired, list_evictor)
f->frag_expire((unsigned long) fq);
return evicted;
@@ -284,8 +283,7 @@ static inline void fq_unlink(struct
inet_frag_queue *fq, struct inet_frags *f)
struct inet_frag_bucket *hb;
hb = get_frag_bucket_locked(fq, f);
- if (!(fq->flags & INET_FRAG_EVICTED))
- hlist_del(&fq->list);
+ hlist_del(&fq->list);
spin_unlock(&hb->chain_lock);
}
Hi Florian,
Thanks for the patch!
After implementing the patch in our setup we are no longer able to
reproduct the kernel panic.
Unfortunately the server load increases after 5/10 minutes and the
logs are getting spammed with stacktraces.
I included a snippet below.
Do you have any insights on why this happens, and how we can resolve
this?
Thanks,
Frank
Jul 22 09:44:17 dommy0 kernel: [ 360.121516] Modules linked in:
parport_pc ppdev lp parport bnep rfcomm bluetooth rfkill uinput nfsd
auth_rpcgss oid_registry nfs_acl nfs lockd grace fscache sunrpc loop
coretemp kvm ttm drm_kms_helper iTCO_wdt drm psmouse ipmi_si
iTCO_vendor_support tpm_tis tpm ipmi_msghandler i2c_algo_bit i2c_core
i7core_edac dcdbas serio_raw pcspkr wmi lpc_ich edac_core mfd_core
evdev button acpi_power_meter processor thermal_sys ext4 crc16 mbcache
jbd2 sd_mod sg sr_mod cdrom hid_generic usbhid ata_generic hid
crc32c_intel ata_piix mptsas scsi_transport_sas mptscsih libata
mptbase ehci_pci scsi_mod uhci_hcd ehci_hcd usbcore usb_common ixgbe
dca ptp bnx2 pps_core mdio
Jul 22 09:44:17 dommy0 kernel: [ 360.121560] CPU: 3 PID: 42 Comm:
kworker/3:1 Tainted: G W L 3.18.18-transip-1.6 #1
Jul 22 09:44:17 dommy0 kernel: [ 360.121562] Hardware name: Dell Inc.
PowerEdge R410/01V648, BIOS 1.12.0 07/30/2013
Jul 22 09:44:17 dommy0 kernel: [ 360.121567] Workqueue: events
inet_frag_worker
Jul 22 09:44:17 dommy0 kernel: [ 360.121568] task: ffff880224574490
ti: ffff8802240a0000 task.ti: ffff8802240a0000
Jul 22 09:44:17 dommy0 kernel: [ 360.121570] RIP:
0010:[<ffffffff810c0872>] [<ffffffff810c0872>] del_timer_sync+0x42/0x60
Jul 22 09:44:17 dommy0 kernel: [ 360.121575] RSP:
0018:ffff8802240a3d48 EFLAGS: 00000246
Jul 22 09:44:17 dommy0 kernel: [ 360.121576] RAX: 0000000000000200
RBX: 0000000000000000 RCX: 0000000000000000
Jul 22 09:44:17 dommy0 kernel: [ 360.121578] RDX: ffff88022215ce40
RSI: 0000000000300000 RDI: ffff88022215cdf0
Jul 22 09:44:17 dommy0 kernel: [ 360.121579] RBP: 0000000000000003
R08: ffff880222343c00 R09: 0000000000000101
Jul 22 09:44:17 dommy0 kernel: [ 360.121581] R10: 0000000000000000
R11: 0000000000000027 R12: ffff880222343c00
Jul 22 09:44:17 dommy0 kernel: [ 360.121582] R13: 0000000000000101
R14: 0000000000000000 R15: 0000000000000027
Jul 22 09:44:17 dommy0 kernel: [ 360.121584] FS:
0000000000000000(0000) GS:ffff88022f260000(0000) knlGS:0000000000000000
Jul 22 09:44:17 dommy0 kernel: [ 360.121585] CS: 0010 DS: 0000 ES:
0000 CR0: 000000008005003b
Jul 22 09:44:17 dommy0 kernel: [ 360.121587] CR2: 00007fb1e9884095
CR3: 000000021c084000 CR4: 00000000000007e0
Jul 22 09:44:17 dommy0 kernel: [ 360.121588] Stack:
Jul 22 09:44:17 dommy0 kernel: [ 360.121589] ffff88022215cdf0
ffffffff8149289e ffffffff81a8aa30 ffffffff81a8aa38
Jul 22 09:44:17 dommy0 kernel: [ 360.121592] 0000000000000286
ffff88022215ce88 ffffffff8149287f 0000000000000394
Jul 22 09:44:17 dommy0 kernel: [ 360.121594] ffffffff81a87100
0000000000000001 000000000000007c 0000000000000000
Jul 22 09:44:17 dommy0 kernel: [ 360.121596] Call Trace:
Jul 22 09:44:17 dommy0 kernel: [ 360.121600] [<ffffffff8149289e>] ?
inet_evict_bucket+0x11e/0x140
Jul 22 09:44:17 dommy0 kernel: [ 360.121602] [<ffffffff8149287f>] ?
inet_evict_bucket+0xff/0x140
Jul 22 09:44:17 dommy0 kernel: [ 360.121605] [<ffffffff814929b0>] ?
inet_frag_worker+0x60/0x210
Jul 22 09:44:17 dommy0 kernel: [ 360.121609] [<ffffffff8107e3a2>] ?
process_one_work+0x142/0x3b0
Jul 22 09:44:17 dommy0 kernel: [ 360.121612] [<ffffffff815078ed>] ?
schedule+0x1d/0x70
Jul 22 09:44:17 dommy0 kernel: [ 360.121614] [<ffffffff8107eb94>] ?
worker_thread+0x114/0x440
Jul 22 09:44:17 dommy0 kernel: [ 360.121617] [<ffffffff815073ad>] ?
__schedule+0x2cd/0x7b0
Jul 22 09:44:17 dommy0 kernel: [ 360.121619] [<ffffffff8107ea80>] ?
create_worker+0x1a0/0x1a0
Jul 22 09:44:17 dommy0 kernel: [ 360.121622] [<ffffffff81083dfc>] ?
kthread+0xbc/0xe0
Jul 22 09:44:17 dommy0 kernel: [ 360.121624] [<ffffffff81083d40>] ?
kthread_create_on_node+0x1c0/0x1c0
Jul 22 09:44:17 dommy0 kernel: [ 360.121627] [<ffffffff8150b218>] ?
ret_from_fork+0x58/0x90
Jul 22 09:44:17 dommy0 kernel: [ 360.121629] [<ffffffff81083d40>] ?
kthread_create_on_node+0x1c0/0x1c0
Jul 22 09:44:17 dommy0 kernel: [ 360.121631] Code: 75 29 be 3c 04 00
00 48 c7 c7 0c 73 71 81 e8 26 72 fa ff 48 89 df e8 6e ff ff ff 85 c0
79 18 66 2e 0f 1f 84 00 00 00 00 00 f3 90 <48> 89 df e8 56 ff ff ff 85
c0 78 f2 5b 90 c3 66 66 66 66 66 66
Jul 22 09:44:27 dommy0 kernel: [ 370.097476] Task dump for CPU 3:
Jul 22 09:44:27 dommy0 kernel: [ 370.097478] kworker/3:1 R
running task 0 42 2 0x00000008
Jul 22 09:44:27 dommy0 kernel: [ 370.097482] Workqueue: events
inet_frag_worker
Jul 22 09:44:27 dommy0 kernel: [ 370.097483] 0000000000000004
ffffffff81849240 ffffffff810b9464 00000000000003dc
Jul 22 09:44:27 dommy0 kernel: [ 370.097485] ffff88022f26d4c0
ffffffff81849180 ffffffff81849240 ffffffff818b4e40
Jul 22 09:44:27 dommy0 kernel: [ 370.097488] ffffffff810bc797
0000000000000000 ffffffff810c6dc9 0000000000000092
Jul 22 09:44:27 dommy0 kernel: [ 370.097490] Call Trace:
Jul 22 09:44:27 dommy0 kernel: [ 370.097491] <IRQ>
[<ffffffff810b9464>] ? rcu_dump_cpu_stacks+0x84/0xc0
Jul 22 09:44:27 dommy0 kernel: [ 370.097499] [<ffffffff810bc797>] ?
rcu_check_callbacks+0x407/0x650
Jul 22 09:44:27 dommy0 kernel: [ 370.097501] [<ffffffff810c6dc9>] ?
timekeeping_update.constprop.8+0x89/0x1b0
Jul 22 09:44:27 dommy0 kernel: [ 370.097504] [<ffffffff810c7ec5>] ?
update_wall_time+0x225/0x5c0
Jul 22 09:44:27 dommy0 kernel: [ 370.097507] [<ffffffff810cfcb0>] ?
tick_sched_do_timer+0x30/0x30
Jul 22 09:44:27 dommy0 kernel: [ 370.097510] [<ffffffff810c14df>] ?
update_process_times+0x3f/0x80
Jul 22 09:44:27 dommy0 kernel: [ 370.097513] [<ffffffff810cfb27>] ?
tick_sched_handle.isra.12+0x27/0x70
Jul 22 09:44:27 dommy0 kernel: [ 370.097515] [<ffffffff810cfcf5>] ?
tick_sched_timer+0x45/0x80
Jul 22 09:44:27 dommy0 kernel: [ 370.097518] [<ffffffff810c1d76>] ?
__run_hrtimer+0x66/0x1b0
Jul 22 09:44:27 dommy0 kernel: [ 370.097522] [<ffffffff8101c5c5>] ?
read_tsc+0x5/0x10
Jul 22 09:44:27 dommy0 kernel: [ 370.097524] [<ffffffff810c2519>] ?
hrtimer_interrupt+0xf9/0x230
Jul 22 09:44:27 dommy0 kernel: [ 370.097528] [<ffffffff81046d86>] ?
smp_apic_timer_interrupt+0x36/0x50
Jul 22 09:44:27 dommy0 kernel: [ 370.097531] [<ffffffff8150c0bd>] ?
apic_timer_interrupt+0x6d/0x80
Jul 22 09:44:27 dommy0 kernel: [ 370.097532] <EOI>
[<ffffffff8150ad89>] ? _raw_spin_lock+0x9/0x30
Jul 22 09:44:27 dommy0 kernel: [ 370.097537] [<ffffffff814927bb>] ?
inet_evict_bucket+0x3b/0x140
Jul 22 09:44:27 dommy0 kernel: [ 370.097539] [<ffffffff8149287f>] ?
inet_evict_bucket+0xff/0x140
Jul 22 09:44:27 dommy0 kernel: [ 370.097542] [<ffffffff814929b0>] ?
inet_frag_worker+0x60/0x210
Jul 22 09:44:27 dommy0 kernel: [ 370.097545] [<ffffffff8107e3a2>] ?
process_one_work+0x142/0x3b0
Jul 22 09:44:27 dommy0 kernel: [ 370.097547] [<ffffffff815078ed>] ?
schedule+0x1d/0x70
Jul 22 09:44:27 dommy0 kernel: [ 370.097550] [<ffffffff8107eb94>] ?
worker_thread+0x114/0x440
Jul 22 09:44:27 dommy0 kernel: [ 370.097552] [<ffffffff815073ad>] ?
__schedule+0x2cd/0x7b0
Jul 22 09:44:27 dommy0 kernel: [ 370.097554] [<ffffffff8107ea80>] ?
create_worker+0x1a0/0x1a0
Jul 22 09:44:27 dommy0 kernel: [ 370.097557] [<ffffffff81083dfc>] ?
kthread+0xbc/0xe0
Jul 22 09:44:27 dommy0 kernel: [ 370.097559] [<ffffffff81083d40>] ?
kthread_create_on_node+0x1c0/0x1c0
Jul 22 09:44:27 dommy0 kernel: [ 370.097562] [<ffffffff8150b218>] ?
ret_from_fork+0x58/0x90
Jul 22 09:44:27 dommy0 kernel: [ 370.097564] [<ffffffff81083d40>] ?
kthread_create_on_node+0x1c0/0x1c0
Jul 22 09:44:53 dommy0 kernel: [ 396.106303] Modules linked in:
parport_pc ppdev lp parport bnep rfcomm bluetooth rfkill uinput nfsd
auth_rpcgss oid_registry nfs_acl nfs lockd grace fscache sunrpc loop
coretemp kvm ttm drm_kms_helper iTCO_wdt drm psmouse ipmi_si
iTCO_vendor_support tpm_tis tpm ipmi_msghandler i2c_algo_bit i2c_core
i7core_edac dcdbas serio_raw pcspkr wmi lpc_ich edac_core mfd_core
evdev button acpi_power_meter processor thermal_sys ext4 crc16 mbcache
jbd2 sd_mod sg sr_mod cdrom hid_generic usbhid ata_generic hid
crc32c_intel ata_piix mptsas scsi_transport_sas mptscsih libata
mptbase ehci_pci scsi_mod uhci_hcd ehci_hcd usbcore usb_common ixgbe
dca ptp bnx2 pps_core mdio
Jul 22 09:44:53 dommy0 kernel: [ 396.106347] CPU: 3 PID: 42 Comm:
kworker/3:1 Tainted: G W L 3.18.18-transip-1.6 #1
Jul 22 09:44:53 dommy0 kernel: [ 396.106348] Hardware name: Dell Inc.
PowerEdge R410/01V648, BIOS 1.12.0 07/30/2013
Jul 22 09:44:53 dommy0 kernel: [ 396.106353] Workqueue: events
inet_frag_worker
Jul 22 09:44:53 dommy0 kernel: [ 396.106355] task: ffff880224574490
ti: ffff8802240a0000 task.ti: ffff8802240a0000
Jul 22 09:44:53 dommy0 kernel: [ 396.106356] RIP:
0010:[<ffffffff8149288d>] [<ffffffff8149288d>]
inet_evict_bucket+0x10d/0x140
Jul 22 09:44:53 dommy0 kernel: [ 396.106359] RSP:
0018:ffff8802240a3d58 EFLAGS: 00000206
Jul 22 09:44:53 dommy0 kernel: [ 396.106361] RAX: 0000000000000000
RBX: 0000000000000286 RCX: 0000000000000000
Jul 22 09:44:53 dommy0 kernel: [ 396.106362] RDX: ffff88022215ce40
RSI: 0000000000300000 RDI: ffff88022215cdf0
Jul 22 09:44:53 dommy0 kernel: [ 396.106364] RBP: 0000000000000003
R08: ffff880222343c00 R09: 0000000000000101
Jul 22 09:44:53 dommy0 kernel: [ 396.106365] R10: 0000000000000000
R11: 0000000000000027 R12: 0000000000000000
Jul 22 09:44:53 dommy0 kernel: [ 396.106366] R13: 0000000000000000
R14: ffff880222343c00 R15: 0000000000000101
Jul 22 09:44:53 dommy0 kernel: [ 396.106368] FS:
0000000000000000(0000) GS:ffff88022f260000(0000) knlGS:0000000000000000
Jul 22 09:44:53 dommy0 kernel: [ 396.106370] CS: 0010 DS: 0000 ES:
0000 CR0: 000000008005003b
Jul 22 09:44:53 dommy0 kernel: [ 396.106371] CR2: 00007fb1e9884095
CR3: 000000021c084000 CR4: 00000000000007e0
Jul 22 09:44:53 dommy0 kernel: [ 396.106372] Stack:
Jul 22 09:44:53 dommy0 kernel: [ 396.106373] ffffffff81a8aa30
ffffffff81a8aa38 0000000000000286 ffff88022215ce88
Jul 22 09:44:53 dommy0 kernel: [ 396.106376] ffffffff8149287f
0000000000000394 ffffffff81a87100 0000000000000001
Jul 22 09:44:53 dommy0 kernel: [ 396.106378] 000000000000007c
0000000000000000 00000000000000c0 ffffffff814929b0
Jul 22 09:44:53 dommy0 kernel: [ 396.106380] Call Trace:
Jul 22 09:44:53 dommy0 kernel: [ 396.106383] [<ffffffff8149287f>] ?
inet_evict_bucket+0xff/0x140
Jul 22 09:44:53 dommy0 kernel: [ 396.106386] [<ffffffff814929b0>] ?
inet_frag_worker+0x60/0x210
Jul 22 09:44:53 dommy0 kernel: [ 396.106390] [<ffffffff8107e3a2>] ?
process_one_work+0x142/0x3b0
Jul 22 09:44:53 dommy0 kernel: [ 396.106393] [<ffffffff815078ed>] ?
schedule+0x1d/0x70
Jul 22 09:44:53 dommy0 kernel: [ 396.106396] [<ffffffff8107eb94>] ?
worker_thread+0x114/0x440
Jul 22 09:44:53 dommy0 kernel: [ 396.106398] [<ffffffff815073ad>] ?
__schedule+0x2cd/0x7b0
Jul 22 09:44:53 dommy0 kernel: [ 396.106401] [<ffffffff8107ea80>] ?
create_worker+0x1a0/0x1a0
Jul 22 09:44:53 dommy0 kernel: [ 396.106403] [<ffffffff81083dfc>] ?
kthread+0xbc/0xe0
Jul 22 09:44:53 dommy0 kernel: [ 396.106406] [<ffffffff81083d40>] ?
kthread_create_on_node+0x1c0/0x1c0
Jul 22 09:44:53 dommy0 kernel: [ 396.106409] [<ffffffff8150b218>] ?
ret_from_fork+0x58/0x90
Jul 22 09:44:53 dommy0 kernel: [ 396.106411] [<ffffffff81083d40>] ?
kthread_create_on_node+0x1c0/0x1c0
Jul 22 09:44:53 dommy0 kernel: [ 396.106412] Code: a0 00 00 00 41 ff
94 24 70 40 00 00 48 85 db 75 e5 48 83 c4 28 89 e8 5b 5d 41 5c 41 5d
41 5e 41 5f c3 0f 1f 40 00 f0 41 ff 47 68 <48> 8b 44 24 08 66 83 00 01
48 89 df e8 92 df c2 ff f0 41 ff 4f
Jul 22 09:45:21 dommy0 kernel: [ 424.094444] Modules linked in:
parport_pc ppdev lp parport bnep rfcomm bluetooth rfkill uinput nfsd
auth_rpcgss oid_registry nfs_acl nfs lockd grace fscache sunrpc loop
coretemp kvm ttm drm_kms_helper iTCO_wdt drm psmouse ipmi_si
iTCO_vendor_support tpm_tis tpm ipmi_msghandler i2c_algo_bit i2c_core
i7core_edac dcdbas serio_raw pcspkr wmi lpc_ich edac_core mfd_core
evdev button acpi_power_meter processor thermal_sys ext4 crc16 mbcache
jbd2 sd_mod sg sr_mod cdrom hid_generic usbhid ata_generic hid
crc32c_intel ata_piix mptsas scsi_transport_sas mptscsih libata
mptbase ehci_pci scsi_mod uhci_hcd ehci_hcd usbcore usb_common ixgbe
dca ptp bnx2 pps_core mdio
Jul 22 09:45:21 dommy0 kernel: [ 424.094487] CPU: 3 PID: 42 Comm:
kworker/3:1 Tainted: G W L 3.18.18-transip-1.6 #1
Jul 22 09:45:21 dommy0 kernel: [ 424.094488] Hardware name: Dell Inc.
PowerEdge R410/01V648, BIOS 1.12.0 07/30/2013
Jul 22 09:45:21 dommy0 kernel: [ 424.094492] Workqueue: events
inet_frag_worker
Jul 22 09:45:21 dommy0 kernel: [ 424.094494] task: ffff880224574490
ti: ffff8802240a0000 task.ti: ffff8802240a0000
Jul 22 09:45:21 dommy0 kernel: [ 424.094495] RIP:
0010:[<ffffffff810c08ac>] [<ffffffff810c08ac>] del_timer+0x1c/0x70
Jul 22 09:45:21 dommy0 kernel: [ 424.094500] RSP:
0018:ffff8802240a3d28 EFLAGS: 00000246
Jul 22 09:45:21 dommy0 kernel: [ 424.094502] RAX: ffffffff81895380
RBX: 0000000000000000 RCX: 0000000000000000
Jul 22 09:45:21 dommy0 kernel: [ 424.094503] RDX: ffff88022215ce40
RSI: 0000000000300000 RDI: ffff88022215cdf0
Jul 22 09:45:21 dommy0 kernel: [ 424.094505] RBP: 0000000000000000
R08: ffff880222343c00 R09: 0000000000000101
Jul 22 09:45:21 dommy0 kernel: [ 424.094506] R10: 0000000000000000
R11: 0000000000000027 R12: 0000000000000000
Jul 22 09:45:21 dommy0 kernel: [ 424.094507] R13: ffff8802245a8000
R14: ffff880222343c00 R15: 0000000000000101
Jul 22 09:45:21 dommy0 kernel: [ 424.094509] FS:
0000000000000000(0000) GS:ffff88022f260000(0000) knlGS:0000000000000000
Jul 22 09:45:21 dommy0 kernel: [ 424.094511] CS: 0010 DS: 0000 ES:
0000 CR0: 000000008005003b
Jul 22 09:45:21 dommy0 kernel: [ 424.094512] CR2: 00007fb1e9884095
CR3: 000000021c084000 CR4: 00000000000007e0
Jul 22 09:45:21 dommy0 kernel: [ 424.094513] Stack:
Jul 22 09:45:21 dommy0 kernel: [ 424.094514] 0000000000000296
ffff88022215cdf0 ffff88022215cdf0 0000000000000003
Jul 22 09:45:21 dommy0 kernel: [ 424.094517] ffffffff81a87100
ffffffff814927f7 ffffffff81a8aa30 ffffffff81a8aa38
Jul 22 09:45:21 dommy0 kernel: [ 424.094519] 0000000000000286
ffff88022215ce88 ffffffff8149287f 0000000000000394
Jul 22 09:45:21 dommy0 kernel: [ 424.094521] Call Trace:
Jul 22 09:45:21 dommy0 kernel: [ 424.094524] [<ffffffff814927f7>] ?
inet_evict_bucket+0x77/0x140
Jul 22 09:45:21 dommy0 kernel: [ 424.094527] [<ffffffff8149287f>] ?
inet_evict_bucket+0xff/0x140
Jul 22 09:45:21 dommy0 kernel: [ 424.094529] [<ffffffff814929b0>] ?
inet_frag_worker+0x60/0x210
Jul 22 09:45:21 dommy0 kernel: [ 424.094533] [<ffffffff8107e3a2>] ?
process_one_work+0x142/0x3b0
Jul 22 09:45:21 dommy0 kernel: [ 424.094536] [<ffffffff815078ed>] ?
schedule+0x1d/0x70
Jul 22 09:45:21 dommy0 kernel: [ 424.094539] [<ffffffff8107eb94>] ?
worker_thread+0x114/0x440
Jul 22 09:45:21 dommy0 kernel: [ 424.094541] [<ffffffff815073ad>] ?
__schedule+0x2cd/0x7b0
Jul 22 09:45:21 dommy0 kernel: [ 424.094544] [<ffffffff8107ea80>] ?
create_worker+0x1a0/0x1a0
Jul 22 09:45:21 dommy0 kernel: [ 424.094546] [<ffffffff81083dfc>] ?
kthread+0xbc/0xe0
Jul 22 09:45:21 dommy0 kernel: [ 424.094549] [<ffffffff81083d40>] ?
kthread_create_on_node+0x1c0/0x1c0
Jul 22 09:45:21 dommy0 kernel: [ 424.094552] [<ffffffff8150b218>] ?
ret_from_fork+0x58/0x90
Jul 22 09:45:21 dommy0 kernel: [ 424.094554] [<ffffffff81083d40>] ?
kthread_create_on_node+0x1c0/0x1c0
Jul 22 09:45:21 dommy0 kernel: [ 424.094555] Code: 66 66 66 66 66 66
2e 0f 1f 84 00 00 00 00 00 48 83 ec 28 48 89 5c 24 10 48 89 6c 24 18
31 ed 4c 89 64 24 20 48 83 3f 00 48 89 fb <48> c7 47 38 00 00 00 00 74
30 48 8d 7f 18 48 8d 74 24 08 e8 0c
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