bootstop: Host has booted / unexpected reboot : how to debug ?

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Hello guys,

 

For some time now I’ve been having problems with unexpected rebooting on my esxi.

 

I have looked at the article :

https://kb.vmware.com/s/article/1019238#:~:text=If%20your%20VMware%20ESXi%20host,faulty%20components%2C%20and%20heating%20issues.

Without finding anything special.

 

I guess the last reboot is between : 2020-09-19T08:42:24.481Z and 2020-09-19T08:51:14.365Z2020-09-19T08:42:24.481Z

I don’t see anything in “hostd.log” :

 

2020-09-19T08:41:51.482Z verbose hostd[2099022] [Originator@6876 sub=Default opID=esxui-8c0c-17bc user=root] AdapterServer: target='vmodl.query.PropertyCollector:ha-property-collector', method='waitForUpdatesEx'
2020-09-19T08:41:51.560Z verbose hostd[2099058] [Originator@6876 sub=PropertyProvider] RecordOp ASSIGN: guest.disk, 7. Sent notification immediately.
2020-09-19T08:41:51.561Z verbose hostd[2099131] [Originator@6876 sub=PropertyProvider] RecordOp ASSIGN: guest.disk, 7. Sent notification immediately.
2020-09-19T08:41:53.849Z verbose hostd[2099059] [Originator@6876 sub=PropertyProvider] RecordOp ASSIGN: guest, 7. Sent notification immediately.
2020-09-19T08:41:53.849Z verbose hostd[2099059] [Originator@6876 sub=PropertyProvider] RecordOp ASSIGN: summary.guest, 7. Sent notification immediately.
2020-09-19T08:41:54.484Z verbose hostd[2099023] [Originator@6876 sub=Default opID=esxui-1cf5-17bd user=root] AdapterServer: target='vmodl.query.PropertyCollector:ha-property-collector', method='waitForUpdatesEx'
2020-09-19T08:42:20.553Z verbose hostd[2099518] [Originator@6876 sub=PropertyProvider] RecordOp ASSIGN: guest.disk, 2. Sent notification immediately.
2020-09-19T08:42:20.615Z verbose hostd[2099024] [Originator@6876 sub=PropertyProvider] RecordOp ASSIGN: guest, 2. Sent notification immediately.
2020-09-19T08:42:20.615Z verbose hostd[2099024] [Originator@6876 sub=PropertyProvider] RecordOp ASSIGN: summary.guest, 2. Sent notification immediately.
2020-09-19T08:42:21.485Z verbose hostd[2099059] [Originator@6876 sub=Default opID=esxui-ae15-17be user=root] AdapterServer: target='vmodl.query.PropertyCollector:ha-property-collector', method='waitForUpdatesEx'
2020-09-19T08:42:21.561Z verbose hostd[2099062] [Originator@6876 sub=PropertyProvider] RecordOp ASSIGN: guest.disk, 7. Sent notification immediately.
2020-09-19T08:42:21.561Z verbose hostd[2099515] [Originator@6876 sub=PropertyProvider] RecordOp ASSIGN: guest.disk, 7. Sent notification immediately.
2020-09-19T08:42:23.833Z verbose hostd[2099517] [Originator@6876 sub=PropertyProvider] RecordOp ASSIGN: guest, 7. Sent notification immediately.
2020-09-19T08:42:23.833Z verbose hostd[2099517] [Originator@6876 sub=PropertyProvider] RecordOp ASSIGN: summary.guest, 7. Sent notification immediately.
2020-09-19T08:42:24.481Z verbose hostd[2099522] [Originator@6876 sub=Default opID=esxui-d074-17bf user=root] AdapterServer: target='vmodl.query.PropertyCollector:ha-property-collector', method='waitForUpdatesEx'
2020-09-19T08:51:14.365Z - time the service was last started, Section for VMware ESX, pid=2098958, version=6.7.0, build=16316930, option=Release
2020-09-19T08:51:14.365Z warning -[2098958] [Originator@6876 sub=Default] Failed to load vsansvc configuration file: N7Vmacore22AlreadyExistsExceptionE(Already Exists)
--> [context]zKq7AVICAgAAAAL6+AAJLQAALE42bGlidm1hY29yZS5zbwAAsL4bAL6dFwCeShcBbX7JaG9zdGQAAYc9yQGbs2ICfRkCbGliYy5zby42AAGt1mI=[/context]
2020-09-19T08:51:14.365Z info -[2098958] [Originator@6876 sub=Default] Supported VMs 334
2020-09-19T08:51:14.365Z info -[2098958] [Originator@6876 sub=Handle checker] Setting system limit of 3740
2020-09-19T08:51:14.365Z info -[2098958] [Originator@6876 sub=Handle checker] Set system limit to 3740
2020-09-19T08:51:14.365Z info -[2098958] [Originator@6876 sub=Default] Setting malloc mmap threshold to 32 k
2020-09-19T08:51:14.365Z info -[2098958] [Originator@6876 sub=Default] getrlimit(RLIMIT_NPROC): curr=4096 max=8192
2020-09-19T08:51:14.365Z info -[2098958] [Originator@6876 sub=Default] Glibc malloc guards disabled.
2020-09-19T08:51:14.365Z info -[2098958] [Originator@6876 sub=Default] Initialized SystemFactory

 

Same for the “vmksummary.log”. :

 

2020-09-19T07:00:00Z heartbeat: up 3d20h57m50s, 2 VMs; [] []
2020-09-19T08:00:00Z heartbeat: up 3d21h57m50s, 2 VMs; [] []
2020-09-19T08:51:23Z bootstop: Host has booted
2020-09-19T09:00:01Z heartbeat: up 0d0h12m8s, 1 VM; [] []

 

 

What else can I look at to understand and solve this?

 

The host is a Dell R710, latest bios / firmware updated.

Current esxi version: 6.7.0 Update 3 (Build 16316930) –> (same reboot problem with previous versions)

I have few VMs on this esxi, it happens when there are only 2 VMs started.

 

An idea ?

Thanks !

 

Best regards,

Bob

 

NB : Logs attached

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