Hi Hans,
On 18.01.2018 16:13, Hans Verkuil wrote:
Only apply the change to v4l2_dev.c, ignore the changes to
v4l2_event. I think it is sufficient to just apply that bit.
I tried both variants, with changes to v4l2_event and without. Both did
not work out of the box. I think the problem is in the wake-up-condition in
ret = wait_event_interruptible(fh->wait, fh->navailable != 0);
As long as we will check only fh->navailable, the thread will continue
to sleep. I inserted an abort-condition to the wait
!video_is_registered(fh->vdev)
and some printk messages. Is is a dirty hack, but now my VIDIOC_DQEVENT
ioctl returns. Instead I get a bunch of errors in dmesg. Can you have a
look, please?
diff -Naur drivers.orig/media/v4l2-core/v4l2-dev.c
drivers/media/v4l2-core/v4l2-dev.c
--- drivers.orig/media/v4l2-core/v4l2-dev.c 2018-01-22
13:22:47.881815404 +0100
+++ drivers/media/v4l2-core/v4l2-dev.c 2018-01-22 13:23:18.541315363 +0100
@@ -1015,6 +1015,9 @@
*/
void video_unregister_device(struct video_device *vdev)
{
+ unsigned long flags;
+ struct v4l2_fh *fh;
+
/* Check if vdev was ever registered at all */
if (!vdev || !video_is_registered(vdev))
return;
@@ -1025,7 +1028,15 @@
*/
clear_bit(V4L2_FL_REGISTERED, &vdev->flags);
mutex_unlock(&videodev_lock);
+
+ printk("MWALZ wake threads\n");
+ spin_lock_irqsave(&vdev->fh_lock, flags);
+ list_for_each_entry(fh, &vdev->fh_list, list)
+ wake_up_all(&fh->wait);
+ spin_unlock_irqrestore(&vdev->fh_lock, flags);
+
device_unregister(&vdev->dev);
+ printk("MWALZ unregistered devices\n");
}
EXPORT_SYMBOL(video_unregister_device);
diff -Naur drivers.orig/media/v4l2-core/v4l2-event.c
drivers/media/v4l2-core/v4l2-event.c
--- drivers.orig/media/v4l2-core/v4l2-event.c 2018-01-22
13:22:47.881815404 +0100
+++ drivers/media/v4l2-core/v4l2-event.c 2018-01-22 13:23:14.301384509 +0100
@@ -35,12 +35,18 @@
{
struct v4l2_kevent *kev;
unsigned long flags;
+ int ret = 0;
spin_lock_irqsave(&fh->vdev->fh_lock, flags);
+ if (!video_is_registered(fh->vdev)) {
+ printk("MWALZ device not registered!\n");
+ ret = -ENODEV;
+ goto err;
+ }
if (list_empty(&fh->available)) {
- spin_unlock_irqrestore(&fh->vdev->fh_lock, flags);
- return -ENOENT;
+ ret = -ENOENT;
+ goto err;
}
WARN_ON(fh->navailable == 0);
@@ -53,10 +59,10 @@
*event = kev->event;
kev->sev->first = sev_pos(kev->sev, 1);
kev->sev->in_use--;
-
+err:
spin_unlock_irqrestore(&fh->vdev->fh_lock, flags);
- return 0;
+ return ret;
}
int v4l2_event_dequeue(struct v4l2_fh *fh, struct v4l2_event *event,
@@ -73,16 +79,20 @@
do {
ret = wait_event_interruptible(fh->wait,
- fh->navailable != 0);
+ (fh->navailable != 0) ||
+ (!video_is_registered(fh->vdev)));
+ printk("MWALZ woken up\n");
if (ret < 0)
break;
ret = __v4l2_event_dequeue(fh, event);
} while (ret == -ENOENT);
+ printk("Try to get the lock\n");
if (fh->vdev->lock)
mutex_lock(fh->vdev->lock);
+ printk("MWALZ return event DQ\n");
return ret;
}
EXPORT_SYMBOL_GPL(v4l2_event_dequeue);
[ 1566.982359] usb 2-2.1: USB disconnect, device number 7
[ 1566.982827] MWALZ wake threads
[ 1566.983411] MWALZ woken up
[ 1566.983421] MWALZ device not registered!
[ 1566.983426] Try to get the lock
[ 1566.983430] MWALZ return event DQ
[ 1566.993157] MWALZ unregistered devices
[ 1569.227177] sysfs group 'power' not found for kobject 'event8'
[ 1569.227201] ------------[ cut here ]------------
[ 1569.227214] WARNING: CPU: 1 PID: 2364 at
/kernel-source//fs/sysfs/group.c:237 sysfs_remove_group+0x46/0x7b
[ 1569.227216] Modules linked in: bnep hid_sensor_gyro_3d
hid_sensor_accel_3d hid_sensor_trigger hid_sensor_iio_common
industrialio_triggered_buffer kfifo_buf hid_sensor_hub intel_ishtp_hid
hid_multitouch input_leds asus_nb_wmi asus_wmi gpio_keys
intel_powerclamp pcspkr btsdio brcmfmac brcmutil cfg80211 uvcvideo
videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 ax88179_178a
videobuf2_core usbnet videodev hid_generic mei_txe lpc_ich mei
intel_ish_ipc processor_thermal_device intel_ishtp intel_soc_dts_iosf
thermal wmi intel_hid sparse_keymap axp20x_i2c axp20x
intel_soc_pmic_bxtwc intel_pmc_ipc i2c_hid int3400_thermal
int3403_thermal battery soc_button_array int340x_thermal_zone
acpi_thermal_rel int3406_thermal ac acpi_pad efivarfs
[ 1569.227341] CPU: 1 PID: 2364 Comm: TabletVP Tainted: G W
4.12.10-custom #3
[ 1569.227343] Hardware name: ASUSTeK COMPUTER INC. T100HAN/T100HAN,
BIOS T100HAN.221 05/18/2016
[ 1569.227348] task: ffff8800779b5040 task.stack: ffff880076124000
[ 1569.227353] RIP: 0010:sysfs_remove_group+0x46/0x7b
[ 1569.227355] RSP: 0018:ffff880076127c48 EFLAGS: 00010296
[ 1569.227359] RAX: 0000000000000032 RBX: 0000000000000000 RCX:
0000000000000000
[ 1569.227362] RDX: ffff880079e94901 RSI: ffff880079e8cba8 RDI:
ffff880079e8cba8
[ 1569.227365] RBP: ffff880076127c60 R08: 0000000000000000 R09:
ffffffff81ef625c
[ 1569.227367] R10: ffff880076127ce0 R11: 071c71c71c71c71c R12:
ffffffff81cc3200
[ 1569.227370] R13: ffff88006ddfc4b8 R14: ffff88006ddfc558 R15:
ffff880074825da0
[ 1569.227374] FS: 00007ffff7198c00(0000) GS:ffff880079e80000(0000)
knlGS:0000000000000000
[ 1569.227376] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1569.227378] CR2: 00007fffec0050d8 CR3: 0000000077236000 CR4:
00000000001006e0
[ 1569.227380] Call Trace:
[ 1569.227392] dpm_sysfs_remove+0x50/0x55
[ 1569.227398] device_del+0xe2/0x2b0
[ 1569.227406] cdev_device_del+0x1a/0x30
[ 1569.227412] evdev_disconnect+0x2a/0x5a
[ 1569.227417] __input_unregister_device+0xa8/0x111
[ 1569.227420] input_unregister_device+0x48/0x5c
[ 1569.227434] uvc_status_cleanup+0x42/0x45 [uvcvideo]
[ 1569.227442] uvc_delete+0x18/0x101 [uvcvideo]
[ 1569.227450] uvc_release+0x22/0x25 [uvcvideo]
[ 1569.227470] v4l2_device_release+0xa1/0xb5 [videodev]
[ 1569.227475] device_release+0x59/0x84
[ 1569.227481] kobject_put+0x140/0x174
[ 1569.227484] put_device+0x17/0x1a
[ 1569.227502] v4l2_release+0x5e/0x68 [videodev]
[ 1569.227508] __fput+0xfc/0x18f
[ 1569.227513] ____fput+0xe/0x10
[ 1569.227518] task_work_run+0x75/0x99
[ 1569.227524] prepare_exit_to_usermode+0x5a/0x86
[ 1569.227528] syscall_return_slowpath+0xa4/0xad
[ 1569.227534] entry_SYSCALL_64_fastpath+0x92/0x94
[ 1569.227538] RIP: 0033:0x362d21089c
[ 1569.227540] RSP: 002b:00007fffffffe670 EFLAGS: 00000293 ORIG_RAX:
0000000000000003
[ 1569.227544] RAX: 0000000000000000 RBX: 0000000000ce20c0 RCX:
000000362d21089c
[ 1569.227546] RDX: 0000000000000000 RSI: 00007fffd0000b18 RDI:
000000000000001e
[ 1569.227548] RBP: 00007fffffffe6b0 R08: 00000000014429e0 R09:
0000000000000000
[ 1569.227551] R10: 0000000000000000 R11: 0000000000000293 R12:
000000000079a9ba
[ 1569.227553] R13: 0000000000000000 R14: 0000000000000000 R15:
0000000000000000
[ 1569.227556] Code: 74 2d 31 d2 49 89 fd 48 89 df e8 d0 ca ff ff 48 85
c0 48 89 c3 75 20 49 8b 55 00 48 c7 c7 45 3c a9 81 49 8b 34 24 e8 2c 2b
f5 ff <0f> ff eb 2a 48 89 df e8 a3 c3 ff ff 4c 89 e6 48 89 df e8 95 fa
[ 1569.227633] ---[ end trace 453d5b8711046511 ]---
[ 1569.238099] sysfs group 'power' not found for kobject 'input20'
[ 1569.238126] ------------[ cut here ]------------
[ 1569.238140] WARNING: CPU: 0 PID: 2364 at
/kernel-source//fs/sysfs/group.c:237 sysfs_remove_group+0x46/0x7b
[ 1569.238142] Modules linked in: bnep hid_sensor_gyro_3d
hid_sensor_accel_3d hid_sensor_trigger hid_sensor_iio_common
industrialio_triggered_buffer kfifo_buf hid_sensor_hub intel_ishtp_hid
hid_multitouch input_leds asus_nb_wmi asus_wmi gpio_keys
intel_powerclamp pcspkr btsdio brcmfmac brcmutil cfg80211 uvcvideo
videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 ax88179_178a
videobuf2_core usbnet videodev hid_generic mei_txe lpc_ich mei
intel_ish_ipc processor_thermal_device intel_ishtp intel_soc_dts_iosf
thermal wmi intel_hid sparse_keymap axp20x_i2c axp20x
intel_soc_pmic_bxtwc intel_pmc_ipc i2c_hid int3400_thermal
int3403_thermal battery soc_button_array int340x_thermal_zone
acpi_thermal_rel int3406_thermal ac acpi_pad efivarfs
[ 1569.238262] CPU: 0 PID: 2364 Comm: TabletVP Tainted: G W
4.12.10-custom #3
[ 1569.238265] Hardware name: ASUSTeK COMPUTER INC. T100HAN/T100HAN,
BIOS T100HAN.221 05/18/2016
[ 1569.238269] task: ffff8800779b5040 task.stack: ffff880076124000
[ 1569.238275] RIP: 0010:sysfs_remove_group+0x46/0x7b
[ 1569.238279] RSP: 0018:ffff880076127c90 EFLAGS: 00010286
[ 1569.238283] RAX: 0000000000000033 RBX: 0000000000000000 RCX:
0000000000000000
[ 1569.238287] RDX: ffff880079e14901 RSI: ffff880079e0cba8 RDI:
ffff880079e0cba8
[ 1569.238290] RBP: ffff880076127ca8 R08: 0000000000000000 R09:
ffffffff81ef7134
[ 1569.238294] R10: ffff880076127c70 R11: 071c71c71c71c71c R12:
ffffffff81cc3200
[ 1569.238297] R13: ffff88006decaa30 R14: ffff88006decaad0 R15:
ffff880074825da0
[ 1569.238302] FS: 00007ffff7198c00(0000) GS:ffff880079e00000(0000)
knlGS:0000000000000000
[ 1569.238306] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1569.238309] CR2: 00007fffec006050 CR3: 0000000077236000 CR4:
00000000001006f0
[ 1569.238312] Call Trace:
[ 1569.238325] dpm_sysfs_remove+0x50/0x55
[ 1569.238332] device_del+0xe2/0x2b0
[ 1569.238339] ? __wake_up+0x44/0x4b
[ 1569.238346] __input_unregister_device+0x10a/0x111
[ 1569.238351] input_unregister_device+0x48/0x5c
[ 1569.238370] uvc_status_cleanup+0x42/0x45 [uvcvideo]
[ 1569.238382] uvc_delete+0x18/0x101 [uvcvideo]
[ 1569.238393] uvc_release+0x22/0x25 [uvcvideo]
[ 1569.238422] v4l2_device_release+0xa1/0xb5 [videodev]
[ 1569.238428] device_release+0x59/0x84
[ 1569.238436] kobject_put+0x140/0x174
[ 1569.238441] put_device+0x17/0x1a
[ 1569.238465] v4l2_release+0x5e/0x68 [videodev]
[ 1569.238473] __fput+0xfc/0x18f
[ 1569.238480] ____fput+0xe/0x10
[ 1569.238485] task_work_run+0x75/0x99
[ 1569.238492] prepare_exit_to_usermode+0x5a/0x86
[ 1569.238497] syscall_return_slowpath+0xa4/0xad
[ 1569.238504] entry_SYSCALL_64_fastpath+0x92/0x94
[ 1569.238508] RIP: 0033:0x362d21089c
[ 1569.238511] RSP: 002b:00007fffffffe670 EFLAGS: 00000293 ORIG_RAX:
0000000000000003
[ 1569.238517] RAX: 0000000000000000 RBX: 0000000000ce20c0 RCX:
000000362d21089c
[ 1569.238520] RDX: 0000000000000000 RSI: 00007fffd0000b18 RDI:
000000000000001e
[ 1569.238523] RBP: 00007fffffffe6b0 R08: 00000000014429e0 R09:
0000000000000000
[ 1569.238526] R10: 0000000000000000 R11: 0000000000000293 R12:
000000000079a9ba
[ 1569.238529] R13: 0000000000000000 R14: 0000000000000000 R15:
0000000000000000
[ 1569.238534] Code: 74 2d 31 d2 49 89 fd 48 89 df e8 d0 ca ff ff 48 85
c0 48 89 c3 75 20 49 8b 55 00 48 c7 c7 45 3c a9 81 49 8b 34 24 e8 2c 2b
f5 ff <0f> ff eb 2a 48 89 df e8 a3 c3 ff ff 4c 89 e6 48 89 df e8 95 fa
[ 1569.238640] ---[ end trace 453d5b8711046512 ]---
[ 1569.238668] sysfs group 'id' not found for kobject 'input20'
[ 1569.238690] ------------[ cut here ]------------
[ 1569.238699] WARNING: CPU: 0 PID: 2364 at
/kernel-source//fs/sysfs/group.c:237 sysfs_remove_group+0x46/0x7b
[ 1569.238701] Modules linked in: bnep hid_sensor_gyro_3d
hid_sensor_accel_3d hid_sensor_trigger hid_sensor_iio_common
industrialio_triggered_buffer kfifo_buf hid_sensor_hub intel_ishtp_hid
hid_multitouch input_leds asus_nb_wmi asus_wmi gpio_keys
intel_powerclamp pcspkr btsdio brcmfmac brcmutil cfg80211 uvcvideo
videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 ax88179_178a
videobuf2_core usbnet videodev hid_generic mei_txe lpc_ich mei
intel_ish_ipc processor_thermal_device intel_ishtp intel_soc_dts_iosf
thermal wmi intel_hid sparse_keymap axp20x_i2c axp20x
intel_soc_pmic_bxtwc intel_pmc_ipc i2c_hid int3400_thermal
int3403_thermal battery soc_button_array int340x_thermal_zone
acpi_thermal_rel int3406_thermal ac acpi_pad efivarfs
[ 1569.238798] CPU: 0 PID: 2364 Comm: TabletVP Tainted: G W
4.12.10-custom #3
[ 1569.238801] Hardware name: ASUSTeK COMPUTER INC. T100HAN/T100HAN,
BIOS T100HAN.221 05/18/2016
[ 1569.238805] task: ffff8800779b5040 task.stack: ffff880076124000
[ 1569.238809] RIP: 0010:sysfs_remove_group+0x46/0x7b
[ 1569.238813] RSP: 0018:ffff880076127c58 EFLAGS: 00010292
[ 1569.238817] RAX: 0000000000000030 RBX: 0000000000000000 RCX:
0000000000000007
[ 1569.238820] RDX: 0000000000000000 RSI: ffff880079e0cba0 RDI:
ffff880079e0cba0
[ 1569.238824] RBP: ffff880076127c70 R08: 0000000000000000 R09:
ffffffff81ef7fdc
[ 1569.238827] R10: ffff880076127c70 R11: 0000000000000228 R12:
ffffffff81cdfba0
[ 1569.238831] R13: ffff88006decaa30 R14: ffffffff818c3b40 R15:
ffff880074825da0
[ 1569.238835] FS: 00007ffff7198c00(0000) GS:ffff880079e00000(0000)
knlGS:0000000000000000
[ 1569.238839] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1569.238842] CR2: 00007fffec006050 CR3: 0000000077236000 CR4:
00000000001006f0
[ 1569.238844] Call Trace:
[ 1569.238853] sysfs_remove_groups+0x32/0x3b
[ 1569.238859] device_remove_attrs+0x4e/0x68
[ 1569.238864] device_del+0x207/0x2b0
[ 1569.238869] ? __wake_up+0x44/0x4b
[ 1569.238875] __input_unregister_device+0x10a/0x111
[ 1569.238880] input_unregister_device+0x48/0x5c
[ 1569.238894] uvc_status_cleanup+0x42/0x45 [uvcvideo]
[ 1569.238905] uvc_delete+0x18/0x101 [uvcvideo]
[ 1569.238916] uvc_release+0x22/0x25 [uvcvideo]
[ 1569.238944] v4l2_device_release+0xa1/0xb5 [videodev]
[ 1569.238950] device_release+0x59/0x84
[ 1569.238956] kobject_put+0x140/0x174
[ 1569.238961] put_device+0x17/0x1a
[ 1569.238985] v4l2_release+0x5e/0x68 [videodev]
[ 1569.238991] __fput+0xfc/0x18f
[ 1569.238997] ____fput+0xe/0x10
[ 1569.239003] task_work_run+0x75/0x99
[ 1569.239008] prepare_exit_to_usermode+0x5a/0x86
[ 1569.239014] syscall_return_slowpath+0xa4/0xad
[ 1569.239019] entry_SYSCALL_64_fastpath+0x92/0x94
[ 1569.239023] RIP: 0033:0x362d21089c
[ 1569.239026] RSP: 002b:00007fffffffe670 EFLAGS: 00000293 ORIG_RAX:
0000000000000003
[ 1569.239031] RAX: 0000000000000000 RBX: 0000000000ce20c0 RCX:
000000362d21089c
[ 1569.239034] RDX: 0000000000000000 RSI: 00007fffd0000b18 RDI:
000000000000001e
[ 1569.239037] RBP: 00007fffffffe6b0 R08: 00000000014429e0 R09:
0000000000000000
[ 1569.239088] R10: 0000000000000000 R11: 0000000000000293 R12:
000000000079a9ba
[ 1569.239091] R13: 0000000000000000 R14: 0000000000000000 R15:
0000000000000000
[ 1569.239097] Code: 74 2d 31 d2 49 89 fd 48 89 df e8 d0 ca ff ff 48 85
c0 48 89 c3 75 20 49 8b 55 00 48 c7 c7 45 3c a9 81 49 8b 34 24 e8 2c 2b
f5 ff <0f> ff eb 2a 48 89 df e8 a3 c3 ff ff 4c 89 e6 48 89 df e8 95 fa
[ 1569.239202] ---[ end trace 453d5b8711046513 ]---
[ 1569.239208] sysfs group 'capabilities' not found for kobject 'input20'
[ 1569.239230] ------------[ cut here ]------------
[ 1569.239239] WARNING: CPU: 0 PID: 2364 at
/kernel-source//fs/sysfs/group.c:237 sysfs_remove_group+0x46/0x7b
[ 1569.239241] Modules linked in: bnep hid_sensor_gyro_3d
hid_sensor_accel_3d hid_sensor_trigger hid_sensor_iio_common
industrialio_triggered_buffer kfifo_buf hid_sensor_hub intel_ishtp_hid
hid_multitouch input_leds asus_nb_wmi asus_wmi gpio_keys
intel_powerclamp pcspkr btsdio brcmfmac brcmutil cfg80211 uvcvideo
videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 ax88179_178a
videobuf2_core usbnet videodev hid_generic mei_txe lpc_ich mei
intel_ish_ipc processor_thermal_device intel_ishtp intel_soc_dts_iosf
thermal wmi intel_hid sparse_keymap axp20x_i2c axp20x
intel_soc_pmic_bxtwc intel_pmc_ipc i2c_hid int3400_thermal
int3403_thermal battery soc_button_array int340x_thermal_zone
acpi_thermal_rel int3406_thermal ac acpi_pad efivarfs
[ 1569.239712] CPU: 0 PID: 2364 Comm: TabletVP Tainted: G W
4.12.10-custom #3
[ 1569.239715] Hardware name: ASUSTeK COMPUTER INC. T100HAN/T100HAN,
BIOS T100HAN.221 05/18/2016
[ 1569.239718] task: ffff8800779b5040 task.stack: ffff880076124000
[ 1569.239723] RIP: 0010:sysfs_remove_group+0x46/0x7b
[ 1569.239726] RSP: 0018:ffff880076127c58 EFLAGS: 00010292
[ 1569.239731] RAX: 000000000000003a RBX: 0000000000000000 RCX:
0000000000000007
[ 1569.239734] RDX: 0000000000000000 RSI: ffff880079e0cba0 RDI:
ffff880079e0cba0
[ 1569.239737] RBP: ffff880076127c70 R08: 0000000000000000 R09:
ffffffff81ef8eb4
[ 1569.239741] R10: ffff880076127c70 R11: 0000000000000228 R12:
ffffffff81cdf9e0
[ 1569.239744] R13: ffff88006decaa30 R14: ffffffff818c3b40 R15:
ffff880074825da0
[ 1569.239749] FS: 00007ffff7198c00(0000) GS:ffff880079e00000(0000)
knlGS:0000000000000000
[ 1569.239752] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1569.239756] CR2: 00007fffec006050 CR3: 0000000077236000 CR4:
00000000001006f0
[ 1569.239758] Call Trace:
[ 1569.239765] sysfs_remove_groups+0x32/0x3b
[ 1569.239771] device_remove_attrs+0x4e/0x68
[ 1569.239777] device_del+0x207/0x2b0
[ 1569.239782] ? __wake_up+0x44/0x4b
[ 1569.239788] __input_unregister_device+0x10a/0x111
[ 1569.239793] input_unregister_device+0x48/0x5c
[ 1569.239806] uvc_status_cleanup+0x42/0x45 [uvcvideo]
[ 1569.239817] uvc_delete+0x18/0x101 [uvcvideo]
[ 1569.239829] uvc_release+0x22/0x25 [uvcvideo]
[ 1569.239857] v4l2_device_release+0xa1/0xb5 [videodev]
[ 1569.239863] device_release+0x59/0x84
[ 1569.239870] kobject_put+0x140/0x174
[ 1569.239875] put_device+0x17/0x1a
[ 1569.239899] v4l2_release+0x5e/0x68 [videodev]
[ 1569.239907] __fput+0xfc/0x18f
[ 1569.239913] ____fput+0xe/0x10
[ 1569.239918] task_work_run+0x75/0x99
[ 1569.239924] prepare_exit_to_usermode+0x5a/0x86
[ 1569.239929] syscall_return_slowpath+0xa4/0xad
[ 1569.239934] entry_SYSCALL_64_fastpath+0x92/0x94
[ 1569.239939] RIP: 0033:0x362d21089c
[ 1569.239942] RSP: 002b:00007fffffffe670 EFLAGS: 00000293 ORIG_RAX:
0000000000000003
[ 1569.239947] RAX: 0000000000000000 RBX: 0000000000ce20c0 RCX:
000000362d21089c
[ 1569.239950] RDX: 0000000000000000 RSI: 00007fffd0000b18 RDI:
000000000000001e
[ 1569.239953] RBP: 00007fffffffe6b0 R08: 00000000014429e0 R09:
0000000000000000
[ 1569.239956] R10: 0000000000000000 R11: 0000000000000293 R12:
000000000079a9ba
[ 1569.239959] R13: 0000000000000000 R14: 0000000000000000 R15:
0000000000000000
[ 1569.239964] Code: 74 2d 31 d2 49 89 fd 48 89 df e8 d0 ca ff ff 48 85
c0 48 89 c3 75 20 49 8b 55 00 48 c7 c7 45 3c a9 81 49 8b 34 24 e8 2c 2b
f5 ff <0f> ff eb 2a 48 89 df e8 a3 c3 ff ff 4c 89 e6 48 89 df e8 95 fa
[ 1569.240130] ---[ end trace 453d5b8711046514 ]---
