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Date: Tue, 22 Aug 2023 17:49:33 -0400
From: Brian Hutchinson <b.hutchman@...il.com>
To: netdev@...r.kernel.org
Cc: Christian Eggers <ceggers@...i.de>, Vladimir Oltean <OlteanV@...il.com>, arun.ramadoss@...rochip.com
Subject: Microchip net DSA with ptp4l getting tx_timeout failed msg using
6.3.12 kernel and KSZ9567 switch
Getting this tx_timestamp_timeout error over and over when I try to run ptp4l:
ptp4l[1366.143]: selected best master clock 001747.fffe.70151b
ptp4l[1366.143]: updating UTC offset to 37
ptp4l[1366.143]: port 1: LISTENING to UNCALIBRATED on RS_SLAVE
ptp4l[1366.860]: port 1: delay timeout
ptp4l[1376.871]: timed out while polling for tx timestamp
ptp4l[1376.871]: increasing tx_timestamp_timeout may correct this
issue, but it is likely caused by a driver bug
ptp4l[1376.871]: port 1: send delay request failed
I was using 5.10.69 with Christians patches before they were mainlined
and had everything working with the help of Christian, Vladimir and
others.
Now I need to update kernel so tried 6.3.12 which contains Christians
upstream patches and I also back ported v8 of the upstreamed patches
to 6.1.38 and I'm getting the same results with that kernel too.
I'm using ptp4l 2.0.1 in a yocto Dunfell release (3.1.24) on imx8mm platform.
I tried both lan1 and the failover bond1 I created between lan1 and
lan2 ports and had the same result.
I tried increasing tx_timestamp and it doesn't appear to matter. I
feel like I had this problem before when first starting to work with
5.10.69 but can't remember if another patch resolved it. With 5.10.69
I've got quite a few more patches than just the 13 that were mainlined
in 6.3. Looking through old emails I want to say it might have been
resolved with net-dsa-ksz9477-avoid-PTP-races-with-the-data-path-l.patch
that Vladimir gave me but looking at the code it doesn't appear
mainline has that one.
As best as possible, I've checked kernel .config between this version
of kernel and what I was using before with 5.10.69 and I can't find a
smoking gun to figure out why this is happening.
Here's the output I get:
root@...alhost: ptp4l -f my_ptp4l..conf -s -i bond1 -m -q -l 7
ptp4l[687.807]: config item (null).assume_two_step is 0
ptp4l[687.807]: config item (null).check_fup_sync is 0
ptp4l[687.807]: config item (null).tx_timestamp_timeout is 3000
ptp4l[687.807]: config item (null).clock_servo is 0
ptp4l[687.807]: config item (null).clock_type is 32768
ptp4l[687.807]: config item (null).clock_servo is 0
ptp4l[687.807]: config item (null).clockClass is 248
ptp4l[687.807]: config item (null).clockAccuracy is 254
ptp4l[687.807]: config item (null).offsetScaledLogVariance is 65535
ptp4l[687.807]: config item (null).productDescription is ';;'
ptp4l[687.807]: config item (null).revisionData is ';;'
ptp4l[687.807]: config item (null).userDescription is ';'
ptp4l[687.807]: config item (null).manufacturerIdentity is '00:00:00'
ptp4l[687.807]: config item (null).domainNumber is 44
ptp4l[687.807]: config item (null).slaveOnly is 1
ptp4l[687.808]: config item (null).gmCapable is 1
ptp4l[687.808]: config item (null).gmCapable is 1
ptp4l[687.808]: config item (null).G.8275.defaultDS.localPriority is 128
ptp4l[687.808]: config item (null).time_stamping is 4
ptp4l[687.808]: config item (null).twoStepFlag is 0
ptp4l[687.808]: config item (null).twoStepFlag is 0
ptp4l[687.808]: config item (null).time_stamping is 4
ptp4l[687.808]: config item (null).priority1 is 128
ptp4l[687.808]: config item (null).priority2 is 128
ptp4l[687.808]: interface index 6 is up
ptp4l[687.808]: config item (null).free_running is 0
ptp4l[687.808]: selected /dev/ptp1 as PTP clock
ptp4l[687.808]: config item (null).uds_address is '/var/run/ptp4l'
ptp4l[687.808]: section item /var/run/ptp4l.announceReceiptTimeout now 0
ptp4l[687.808]: section item /var/run/ptp4l.delay_mechanism now 0
ptp4l[687.808]: section item /var/run/ptp4l.network_transport now 0
ptp4l[687.808]: section item /var/run/ptp4l.delay_filter_length now 1
ptp4l[687.808]: config item (null).free_running is 0
ptp4l[687.808]: config item (null).freq_est_interval is 1
ptp4l[687.808]: config item (null).gmCapable is 1
ptp4l[687.808]: config item (null).kernel_leap is 1
ptp4l[687.808]: config item (null).utc_offset is 37
ptp4l[687.808]: config item (null).timeSource is 160
ptp4l[687.809]: config item (null).pi_proportional_const is 0.200000
ptp4l[687.809]: config item (null).pi_integral_const is 0.037500
ptp4l[687.809]: config item (null).pi_proportional_scale is 0.000000
ptp4l[687.809]: config item (null).pi_proportional_exponent is -0.300000
ptp4l[687.809]: config item (null).pi_proportional_norm_max is 0.700000
ptp4l[687.809]: config item (null).pi_integral_scale is 0.000000
ptp4l[687.809]: config item (null).pi_integral_exponent is 0.400000
ptp4l[687.809]: config item (null).pi_integral_norm_max is 0.300000
ptp4l[687.809]: config item (null).step_threshold is 0.000000
ptp4l[687.809]: config item (null).first_step_threshold is 0.000020
ptp4l[687.809]: config item (null).max_frequency is 900000000
ptp4l[687.809]: config item (null).dataset_comparison is 1
ptp4l[687.809]: config item (null).tsproc_mode is 0
ptp4l[687.809]: config item (null).delay_filter is 1
ptp4l[687.809]: config item (null).delay_filter_length is 5
ptp4l[687.809]: config item (null).initial_delay is 0
ptp4l[687.809]: config item (null).summary_interval is 4
ptp4l[687.809]: config item (null).sanity_freq_limit is 200000000
ptp4l[687.809]: PI servo: sync interval 1.000 kp 0.200 ki 0.037500
ptp4l[687.809]: config item /var/run/ptp4l.boundary_clock_jbod is 0
ptp4l[687.809]: config item /var/run/ptp4l.network_transport is 0
ptp4l[687.809]: config item /var/run/ptp4l.delayAsymmetry is 0
ptp4l[687.809]: config item /var/run/ptp4l.follow_up_info is 0
ptp4l[687.809]: config item /var/run/ptp4l.freq_est_interval is 1
ptp4l[687.809]: config item /var/run/ptp4l.net_sync_monitor is 0
ptp4l[687.809]: config item /var/run/ptp4l.path_trace_enabled is 0
ptp4l[687.809]: config item /var/run/ptp4l.tc_spanning_tree is 0
ptp4l[687.809]: config item /var/run/ptp4l.ingressLatency is 0
ptp4l[687.809]: config item /var/run/ptp4l.egressLatency is 0
ptp4l[687.809]: config item /var/run/ptp4l.delay_mechanism is 0
ptp4l[688.184]: config item /var/run/ptp4l.hybrid_e2e is 1
ptp4l[688.184]: port 0: hybrid_e2e only works with E2E
ptp4l[688.184]: config item /var/run/ptp4l.fault_badpeernet_interval is 16
ptp4l[688.184]: config item /var/run/ptp4l.fault_reset_interval is -128
ptp4l[688.185]: config item /var/run/ptp4l.tsproc_mode is 0
ptp4l[688.185]: config item /var/run/ptp4l.delay_filter is 1
ptp4l[688.185]: config item /var/run/ptp4l.delay_filter_length is 1
ptp4l[688.185]: config item bond1.boundary_clock_jbod is 0
ptp4l[688.185]: config item bond1.network_transport is 1
ptp4l[688.185]: config item bond1.delayAsymmetry is 0
ptp4l[688.185]: config item bond1.follow_up_info is 0
ptp4l[688.185]: config item bond1.freq_est_interval is 1
ptp4l[688.185]: config item bond1.net_sync_monitor is 0
ptp4l[688.185]: config item bond1.path_trace_enabled is 0
ptp4l[688.185]: config item bond1.tc_spanning_tree is 0
ptp4l[688.185]: config item bond1.ingressLatency is 0
ptp4l[688.185]: config item bond1.egressLatency is 0
ptp4l[688.185]: config item bond1.delay_mechanism is 1
ptp4l[688.185]: config item bond1.unicast_master_table is 1
ptp4l[688.185]: config item bond1.unicast_req_duration is 300
ptp4l[688.185]: section item bond1.hybrid_e2e now 1
ptp4l[688.185]: config item bond1.unicast_listen is 1
ptp4l[688.185]: section item bond1.hybrid_e2e now 1
ptp4l[688.185]: config item bond1.inhibit_multicast_service is 1
ptp4l[688.185]: config item bond1.hybrid_e2e is 1
ptp4l[688.185]: config item bond1.fault_badpeernet_interval is 16
ptp4l[688.185]: config item bond1.fault_reset_interval is -128
ptp4l[688.185]: config item bond1.tsproc_mode is 0
ptp4l[688.185]: config item bond1.delay_filter is 1
ptp4l[688.185]: config item bond1.delay_filter_length is 5
ptp4l[688.185]: config item bond1.logMinDelayReqInterval is 0
ptp4l[688.185]: config item bond1.logAnnounceInterval is 1
ptp4l[688.185]: config item bond1.announceReceiptTimeout is 3
ptp4l[688.185]: config item bond1.syncReceiptTimeout is 0
ptp4l[688.185]: config item bond1.transportSpecific is 0
ptp4l[688.185]: config item bond1.ignore_transport_specific is 0
ptp4l[688.185]: config item bond1.masterOnly is 0
ptp4l[688.185]: config item bond1.G.8275.portDS.localPriority is 128
ptp4l[688.185]: config item bond1.logSyncInterval is 0
ptp4l[688.185]: config item bond1.logMinPdelayReqInterval is 0
ptp4l[688.185]: config item bond1.neighborPropDelayThresh is 20000000
ptp4l[688.185]: config item bond1.min_neighbor_prop_delay is -20000000
ptp4l[688.185]: config item bond1.udp_ttl is 1
ptp4l[688.186]: config item (null).dscp_event is 0
ptp4l[688.186]: config item (null).dscp_general is 0
ptp4l[688.186]: port 1: INITIALIZING to LISTENING on INIT_COMPLETE
ptp4l[688.186]: config item /var/run/ptp4l.logMinDelayReqInterval is 0
ptp4l[688.186]: config item /var/run/ptp4l.logAnnounceInterval is 1
ptp4l[688.186]: config item /var/run/ptp4l.announceReceiptTimeout is 0
ptp4l[688.186]: config item /var/run/ptp4l.syncReceiptTimeout is 0
ptp4l[688.186]: config item /var/run/ptp4l.transportSpecific is 0
ptp4l[688.186]: config item /var/run/ptp4l.ignore_transport_specific is 0
ptp4l[688.186]: config item /var/run/ptp4l.masterOnly is 0
ptp4l[688.186]: config item /var/run/ptp4l.G.8275.portDS.localPriority is 128
ptp4l[688.186]: config item /var/run/ptp4l.logSyncInterval is 0
ptp4l[688.186]: config item /var/run/ptp4l.logMinPdelayReqInterval is 0
ptp4l[688.186]: config item /var/run/ptp4l.neighborPropDelayThresh is 20000000
ptp4l[688.186]: config item /var/run/ptp4l.min_neighbor_prop_delay is -20000000
ptp4l[688.186]: config item (null).uds_address is '/var/run/ptp4l'
ptp4l[688.186]: port 0: INITIALIZING to LISTENING on INIT_COMPLETE
ptp4l[688.186]: port 1: received link status notification
ptp4l[688.186]: interface index 6 is up
ptp4l[688.247]: port 1: setting asCapable
ptp4l[688.259]: port 1: new foreign master 001747.fffe.70151b-1
ptp4l[692.186]: port 1: unicast request timeout
ptp4l[692.188]: port 1: unicast ANNOUNCE granted for 300 sec
ptp4l[692.188]: port 1: renewal timeout at 917
ptp4l[692.296]: selected best master clock 001747.fffe.70151b
ptp4l[692.296]: updating UTC offset to 37
ptp4l[692.296]: port 1: LISTENING to UNCALIBRATED on RS_SLAVE
ptp4l[693.710]: port 1: delay timeout
ptp4l[696.714]: timed out while polling for tx timestamp
ptp4l[696.714]: increasing tx_timestamp_timeout may correct this
issue, but it is likely caused by a driver bug
ptp4l[696.714]: port 1: send delay request failed
ptp4l[696.714]: port 1: clearing fault immediately
ptp4l[696.715]: config item bond1.logMinDelayReqInterval is 0
ptp4l[696.715]: config item bond1.logAnnounceInterval is 1
ptp4l[696.715]: config item bond1.announceReceiptTimeout is 3
ptp4l[696.715]: config item bond1.syncReceiptTimeout is 0
ptp4l[696.715]: config item bond1.transportSpecific is 0
ptp4l[696.715]: config item bond1.ignore_transport_specific is 0
ptp4l[696.715]: config item bond1.masterOnly is 0
ptp4l[696.715]: config item bond1.G.8275.portDS.localPriority is 128
ptp4l[696.715]: config item bond1.logSyncInterval is 0
ptp4l[696.715]: config item bond1.logMinPdelayReqInterval is 0
ptp4l[696.715]: config item bond1.neighborPropDelayThresh is 20000000
ptp4l[696.715]: config item bond1.min_neighbor_prop_delay is -20000000
ptp4l[696.715]: config item bond1.udp_ttl is 1
ptp4l[696.716]: config item (null).dscp_event is 0
ptp4l[696.716]: config item (null).dscp_general is 0
ptp4l[696.716]: port 1: UNCALIBRATED to LISTENING on INIT_COMPLETE
ptp4l[696.716]: port 1: received link status notification
ptp4l[696.716]: interface index 6 is up
ptp4l[697.330]: port 1: setting asCapable
ptp4l[698.351]: port 1: new foreign master 001747.fffe.70151b-1
ptp4l[700.716]: port 1: unicast request timeout
ptp4l[700.717]: port 1: unicast SYNC granted for 300 sec
ptp4l[700.717]: PI servo: sync interval 1.000 kp 0.200 ki 0.037500
ptp4l[700.717]: port 1: unicast DELAY_RESP granted for 300 sec
ptp4l[702.387]: selected best master clock 001747.fffe.70151b
ptp4l[702.387]: updating UTC offset to 37
ptp4l[702.387]: port 1: LISTENING to UNCALIBRATED on RS_SLAVE
ptp4l[703.614]: port 1: delay timeout
ptp4l[706.618]: timed out while polling for tx timestamp
ptp4l[706.618]: increasing tx_timestamp_timeout may correct this
issue, but it is likely caused by a driver bug
ptp4l[706.618]: port 1: send delay request failed
ptp4l[706.618]: port 1: clearing fault immediately
ptp4l[706.619]: config item bond1.logMinDelayReqInterval is 0
ptp4l[706.619]: config item bond1.logAnnounceInterval is 1
ptp4l[706.619]: config item bond1.announceReceiptTimeout is 3
ptp4l[706.619]: config item bond1.syncReceiptTimeout is 0
ptp4l[706.619]: config item bond1.transportSpecific is 0
ptp4l[706.619]: config item bond1.ignore_transport_specific is 0
ptp4l[706.619]: config item bond1.masterOnly is 0
ptp4l[706.619]: config item bond1.G.8275.portDS.localPriority is 128
ptp4l[706.619]: config item bond1.logSyncInterval is 0
ptp4l[706.619]: config item bond1.logMinPdelayReqInterval is 0
ptp4l[706.619]: config item bond1.neighborPropDelayThresh is 20000000
ptp4l[706.619]: config item bond1.min_neighbor_prop_delay is -20000000
ptp4l[706.619]: config item bond1.udp_ttl is 1
ptp4l[706.620]: config item (null).dscp_event is 0
ptp4l[706.620]: config item (null).dscp_general is 0
ptp4l[706.620]: port 1: UNCALIBRATED to LISTENING on INIT_COMPLETE
ptp4l[706.620]: port 1: received link status notification
ptp4l[706.620]: interface index 6 is up
ptp4l[707.406]: port 1: setting asCapable
ptp4l[708.425]: port 1: new foreign master 001747.fffe.70151b-1
ptp4l[710.621]: port 1: unicast request timeout
ptp4l[712.432]: selected best master clock 001747.fffe.70151b
ptp4l[712.432]: updating UTC offset to 37
ptp4l[712.433]: port 1: LISTENING to UNCALIBRATED on RS_SLAVE
ptp4l[714.001]: port 1: delay timeout
ptp4l[717.005]: timed out while polling for tx timestamp
ptp4l[717.005]: increasing tx_timestamp_timeout may correct this
issue, but it is likely caused by a driver bug
ptp4l[717.005]: port 1: send delay request failed
ptp4l[717.005]: port 1: clearing fault immediately
ptp4l[717.005]: config item bond1.logMinDelayReqInterval is 0
ptp4l[717.005]: config item bond1.logAnnounceInterval is 1
ptp4l[717.005]: config item bond1.announceReceiptTimeout is 3
ptp4l[717.005]: config item bond1.syncReceiptTimeout is 0
ptp4l[717.005]: config item bond1.transportSpecific is 0
ptp4l[717.005]: config item bond1.ignore_transport_specific is 0
ptp4l[717.005]: config item bond1.masterOnly is 0
ptp4l[717.005]: config item bond1.G.8275.portDS.localPriority is 128
ptp4l[717.005]: config item bond1.logSyncInterval is 0
ptp4l[717.006]: config item bond1.logMinPdelayReqInterval is 0
ptp4l[717.006]: config item bond1.neighborPropDelayThresh is 20000000
ptp4l[717.006]: config item bond1.min_neighbor_prop_delay is -20000000
ptp4l[717.006]: config item bond1.udp_ttl is 1
ptp4l[717.006]: config item (null).dscp_event is 0
ptp4l[717.006]: config item (null).dscp_general is 0
ptp4l[717.007]: port 1: UNCALIBRATED to LISTENING on INIT_COMPLETE
ptp4l[717.007]: port 1: received link status notification
ptp4l[717.007]: interface index 6 is up
ptp4l[717.442]: port 1: setting asCapable
Here is my ptp4l config:
[global]
#
# Default Data Set
#
twoStepFlag 0
slaveOnly 1
priority1 128
#priority2 255
priority2 128
domainNumber 44
#utc_offset 37
clockClass 248
#clockClass 255
#step_window 48
clockAccuracy 0xFE
offsetScaledLogVariance 0xFFFF
free_running 0
freq_est_interval 1
dscp_event 0
dscp_general 0
#dataset_comparison ieee1588
#for G.8275.1
dataset_comparison G.8275.x
G.8275.defaultDS.localPriority 128
#
# Port Data Set
#
logAnnounceInterval 1
logSyncInterval 0
logMinDelayReqInterval 0
logMinPdelayReqInterval 0
announceReceiptTimeout 3
syncReceiptTimeout 0
delayAsymmetry 0
fault_reset_interval -128
#fault_reset_interval 4
neighborPropDelayThresh 20000000
masterOnly 0
G.8275.portDS.localPriority 128
#
# Run time options
#
assume_two_step 0
logging_level 6
path_trace_enabled 0
follow_up_info 0
hybrid_e2e 1
inhibit_multicast_service 1
net_sync_monitor 0
tc_spanning_tree 0
#tx_timestamp_timeout 300
#tx_timestamp_timeout 1000
tx_timestamp_timeout 10000
unicast_listen 1
unicast_req_duration 300
unicast_master_table 1
use_syslog 0
verbose 0
summary_interval 4
kernel_leap 1
check_fup_sync 0
#
# Servo Options
#
#servo_offset_threshold 100
#servo_num_offset_values 64
pi_proportional_const 0.2
pi_integral_const 0.0375
pi_proportional_scale 0.0
pi_proportional_exponent -0.3
pi_proportional_norm_max 0.7
pi_integral_scale 0.0
pi_integral_exponent 0.4
pi_integral_norm_max 0.3
step_threshold 0.0
#step_threshold 0.00002
first_step_threshold 0.00002
max_frequency 900000000
clock_servo pi
sanity_freq_limit 200000000
ntpshm_segment 0
#
# Transport options
#
transportSpecific 0x0
ptp_dst_mac 01:1B:19:00:00:00
p2p_dst_mac 01:80:C2:00:00:0E
udp_ttl 1
#udp6_scope 0x0E
uds_address /var/run/ptp4l
#
# Default interface options
#
#clock_type OC
network_transport UDPv4
#delay_mechanism P2P
delay_mechanism E2E
time_stamping p2p1step
#time_stamping onestep
#time_stamping hardware
tsproc_mode filter
#tsproc_mode raw
#tsproc_mode raw_weight
delay_filter moving_median
delay_filter_length 5
egressLatency 0
ingressLatency 0
boundary_clock_jbod 0
#
# Clock description
#
productDescription ;;
revisionData ;;
manufacturerIdentity 00:00:00
userDescription ;
timeSource 0xA0
#maxStepsRemoved 255
#
[unicast_master_table]
table_id 1
logQueryInterval 2
#UDPv4 192.168.0.250
UDPv4 192.168.1.250
#
[lan1]
unicast_master_table 1
cat /proc/interrupts:
CPU0 CPU1 CPU2 CPU3
11: 323676 486 484 489 GICv3 30 Level
arch_timer
14: 50097 0 0 2 GICv3 79 Level
timer@...a0000
15: 0 0 0 0 GICv3 23 Level arm-pmu
16: 0 0 0 0 GICv3 135 Level
302c0000.dma-controller
17: 0 0 0 0 GICv3 66 Level
302b0000.dma-controller
18: 0 0 0 0 GICv3 34 Level
30bd0000.dma-controller
19: 3385 0 0 0 GICv3 59 Level
30890000.serial
20: 1670 0 0 0 GICv3 139 Level
30bb0000.spi
21: 0 0 0 0 GICv3 51 Level
rtc alarm
22: 0 0 0 0 GICv3 110 Level
30280000.watchdog
23: 7579 0 0 0 GICv3 56 Level mmc2
25: 0 0 0 0 GICv3 127 Level sai
26: 0 0 0 0 GICv3 82 Level sai
32: 0 0 0 0 gpio-mxc 3 Level
bd718xx-irq
39: 16 0 0 0 gpio-mxc 10 Level
global_port_irq
44: 0 0 0 0 gpio-mxc 15 Edge
30b50000.mmc cd
197: 1183025 0 0 0 GICv3 67 Level
30a20000.i2c
198: 0 0 0 0 bd718xx-irq 5 Edge
gpio_keys
199: 0 0 0 0 GICv3 68 Level
30a30000.i2c
200: 0 0 0 0 GICv3 69 Level
30a40000.i2c
201: 0 0 0 0 GICv3 70 Level
30a50000.i2c
202: 0 0 0 0 GICv3 64 Level
30830000.spi
203: 0 0 0 0 GICv3 150 Level
30be0000.ethernet
204: 0 0 0 0 GICv3 151 Level
30be0000.ethernet
205: 6819 0 0 0 GICv3 152 Level
30be0000.ethernet
206: 0 0 0 0 GICv3 153 Level
30be0000.ethernet
207: 0 0 0 0 GICv3 55 Level mmc1
208: 16 0 0 0 ksz-irq 0 Edge
port_irq-0
209: 0 0 0 0 ksz-irq 1 Edge
port_irq-1
217: 16 0 0 0 ksz-irq 2 Edge
ptp-irq-0
218: 0 0 0 0 ksz-irq 0 Edge
pdresp-msg
219: 16 0 0 0 ksz-irq 1 Edge
xdreq-msg
220: 0 0 0 0 ksz-irq 2 Edge
sync-msg
223: 0 0 0 0 ksz-irq 2 Edge
ptp-irq-1
224: 0 0 0 0 ksz-irq 0 Edge
pdresp-msg
225: 0 0 0 0 ksz-irq 1 Edge
xdreq-msg
226: 0 0 0 0 ksz-irq 2 Edge
sync-msg
228: 0 0 0 0 GICv3 36 Level
30370000.snvs:snvs-powerkey
229: 0 0 0 0 GICv3 130 Level
imx8_ddr_perf_pmu
230: 213 0 0 0 GICv3 137 Level
30901000.jr
231: 0 0 0 0 GICv3 138 Level
30902000.jr
232: 0 0 0 0 GICv3 146 Level
30903000.jr
IPI0: 6 371 371 370 Rescheduling interrupts
IPI1: 24 63 63 63 Function call interrupts
IPI2: 0 0 0 0 CPU stop interrupts
IPI3: 0 0 0 0 CPU stop (for
crash dump) interrupts
IPI4: 0 0 0 0 Timer broadcast
interrupts
IPI5: 28207 0 0 0 IRQ work interrupts
IPI6: 0 0 0 0 CPU wake-up interrupts
Please let me know if I need to supply more data or answer questions
to track this down.
Regards,
Brian
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