Symptom

Running the hidden command ``show hardware internal s1hal drop counters`` is crashing the switch and creating a core file for the "s1hal" process. This is seen on NXOS version 10.3.2 and 10.3.3. HW: N9K-C9800-SUP-A / N9K-X9836DM-A SW: 10.3(3) N9K-C9808-1# which | i voq (2943) show hardware internal s1hal drop counters [ voq_port unit ltl-range start-ltl ltl-cnt ] [ voq_internal { mcast | recycle | cpu-port } ] [ mo dule ] [ { instance | { unit slice } } ] N9K-C9808-1# N9K-C9808-1# show hardware internal s1hal ? dchal DCHAL debug-shell Silicon one debug shell event-history Show event-history fabric Show fabric interface counters fabric_debug Status of Internal Fabric links logging-levels Show current logging levels mem-stats Memory (mtrack) statistics multicast_id Multicast ID sdk S1HAL SDK debug commands stats Statistics infra for sone sw Sw-state N9K-C9808-1# `show hardware internal s1hal drop counters` Service not responding Switch hung after running `show hardware internal s1hal drop counters` and eventually crashed/reloaded NXOS Grub disable watchdog Filesystem type unknown, partition type 0x83 check_bootmode: grub: Continue grub Trying to read config file /boot/grub/menu.lst.local from (hd0,4) Filesystem type is ext2fs, partition type 0x83 Booting bootflash:/nxos64-cs.10.3.3.F.bin ... Booting bootflash:/nxos64-cs.10.3.3.F.bin Trying diskboot Filesystem type is ext2fs, partition type 0x83 Image valid Image Signature verification was Successful. Reset reason N9K-C9808-1# show system reset-reason ----- reset reason for module 27 (from Supervisor in slot 27) --- 1) At 331579 usecs after Fri Jun 2 14:11:22 2023 Reason: Reset triggered due to HA policy of Reset Service: s1hal hap reset Version: 10.3(3) N9K-C9808-1# show cores VDC Module Instance Process-name PID Date(Year-Month-Day Time) --- ------ -------- --------------- -------- ------------------------- 1 27 1 s1hal 2365 2023-06-02 14:14:35 * * HAP reset core restored on reload from previous boot N9K-C9808-1# show logging onboard exception-log ---------------------------- Module: 27 ---------------------------- --------------------------------------------------------------- Date (mm/dd/yy)=06/02/23 Time (hs:mn:sec): 14:11:22 OBFL Exception log data for THIS SUP Module:0 ********* Exception info for module 0 ******** exception information --- exception instance 1 ---- Module Slot Number: 0 Device Id : 134 Device Name : System Manager Device Errorcode : 0x00000a9e Device ID : 00 (0x00) Device Instance : 00 (0x00) Dev Type (HW/SW) : 10 (0x0a) ErrNum (devInfo) : 158 (0x9e) System Errorcode : 0x401e0089 Service in VDC has had a hap-reset Error Type : FATAL error PhyPortLayer : 0x0 Port(s) Affected : none Error Description : s1hal hap reset DSAP : 0 (0x0) UUID : 1 (0x1) Time : (null) (Ticks: 6479F88A jiffies)

Conditions

Nexus 9800 running 10.3.2 or 10.3.3 and executing the command `show hardware internal s1hal drop counters`.

Workaround

None. Avoid executing the command `show hardware internal s1hal sdk drop counters`

Further Problem Description