basalt-26.3: roachtest: kv0/enc=false/nodes=3/cpu=32/binary=basalt/storage=basalt/basalt_nodes=3/rsengine=enabled failed

roachtest.kv0/enc=false/nodes=3/cpu=32/binary=basalt/storage=basalt/basalt_nodes=3/rsengine=enabled [failed](https://teamcity.cockroachdb.com/buildConfiguration/Cockroach_Nightlies_Roachtests_RoachtestNightlyBenchmarksAwsBasaltBazel/21516296?buildTab=log) with [artifacts](https://teamcity.cockroachdb.com/buildConfiguration/Cockroach_Nightlies_Roachtests_RoachtestNightlyBenchmarksAwsBasaltBazel/21516296?buildTab=artifacts#/kv0/enc=false/nodes=3/cpu=32/binary=basalt/storage=basalt/basalt_nodes=3/rsengine=enabled) on basalt-26.3 @ [2327de0124eca58e8ea82a577a805766789a48e5](https://github.com/cockroachdb/cockroach/commits/2327de0124eca58e8ea82a577a805766789a48e5):

Failed with:

```
(cluster.go:4230).Start: COMMAND_PROBLEM: exit status 1
test artifacts and logs in: /artifacts/kv0/enc=false/nodes=3/cpu=32/binary=basalt/storage=basalt/basalt_nodes=3/rsengine=enabled/run_1
```
Fatal entries found in Cockroach logs:

```
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 ⋮ [n?,s?,pebble] 8 MANIFEST flush failed: version 0: unsupported protocol version
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 ⋮ [n?,s?,pebble] 8 !goroutine 102 [running]:
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 ⋮ [n?,s?,pebble] 8 !github.com/cockroachdb/cockroach/pkg/util/allstacks.GetWithBuf({0x0?, 0x347defdc1798?, 0xd6afcb?})
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 ⋮ [n?,s?,pebble] 8 ! pkg/util/allstacks/allstacks.go:38 +0x125
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 ⋮ [n?,s?,pebble] 8 !github.com/cockroachdb/cockroach/pkg/util/allstacks.Get(...)
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 ⋮ [n?,s?,pebble] 8 ! pkg/util/allstacks/allstacks.go:19
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 ⋮ [n?,s?,pebble] 8 !github.com/cockroachdb/cockroach/pkg/util/log.(*loggerT).outputLogEntry(_, {{{0x0, 0x0}, {0x0, 0x0}, {0x0, 0x0}, {0x0, 0x0}, {0x0, ...}}, ...})
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 ⋮ [n?,s?,pebble] 8 ! pkg/util/log/clog.go:294 +0xc6
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 ⋮ [n?,s?,pebble] 8 !github.com/cockroachdb/cockroach/pkg/util/log.logfDepthInternal({0x86e51c8, 0x347defeaa3c0}, 0x3, 0x4, 0x3, 0x0?, {0x8630d28, 0x2}, {0x347de58ed910, 0x1, ...})
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 ⋮ [n?,s?,pebble] 8 ! pkg/util/log/channels.go:104 +0x650
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 ⋮ [n?,s?,pebble] 8 MANIFEST flush failed: version 0: unsupported protocol version
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 ⋮ [n?,s?,pebble] 8 !goroutine 102 [running]:
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 ⋮ [n?,s?,pebble] 8 !github.com/cockroachdb/cockroach/pkg/util/allstacks.GetWithBuf({0x0?, 0x347defdc1798?, 0xd6afcb?})
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 ⋮ [n?,s?,pebble] 8 ! pkg/util/allstacks/allstacks.go:38 +0x125
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 ⋮ [n?,s?,pebble] 8 !github.com/cockroachdb/cockroach/pkg/util/allstacks.Get(...)
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 ⋮ [n?,s?,pebble] 8 ! pkg/util/allstacks/allstacks.go:19
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 ⋮ [n?,s?,pebble] 8 !github.com/cockroachdb/cockroach/pkg/util/log.(*loggerT).outputLogEntry(_, {{{0x0, 0x0}, {0x0, 0x0}, {0x0, 0x0}, {0x0, 0x0}, {0x0, ...}}, ...})
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 ⋮ [n?,s?,pebble] 8 ! pkg/util/log/clog.go:294 +0xc6
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 ⋮ [n?,s?,pebble] 8 !github.com/cockroachdb/cockroach/pkg/util/log.logfDepthInternal({0x86e51c8, 0x347defeaa3c0}, 0x3, 0x4, 0x3, 0x0?, {0x8630d28, 0x2}, {0x347de58ed910, 0x1, ...})
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 ⋮ [n?,s?,pebble] 8 ! pkg/util/log/channels.go:104 +0x650
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 ⋮ [n?,s?,pebble] 25 MANIFEST flush failed: version 0: unsupported protocol version
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 ⋮ [n?,s?,pebble] 25 !goroutine 102 [running]:
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 ⋮ [n?,s?,pebble] 25 !github.com/cockroachdb/cockroach/pkg/util/allstacks.GetWithBuf({0x0?, 0x347defdc1798?, 0xd6afcb?})
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 ⋮ [n?,s?,pebble] 25 ! pkg/util/allstacks/allstacks.go:38 +0x125
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 ⋮ [n?,s?,pebble] 25 !github.com/cockroachdb/cockroach/pkg/util/allstacks.Get(...)
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 ⋮ [n?,s?,pebble] 25 ! pkg/util/allstacks/allstacks.go:19
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 ⋮ [n?,s?,pebble] 25 !github.com/cockroachdb/cockroach/pkg/util/log.(*loggerT).outputLogEntry(_, {{{0x0, 0x0}, {0x0, 0x0}, {0x0, 0x0}, {0x0, 0x0}, {0x0, ...}}, ...})
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 ⋮ [n?,s?,pebble] 25 ! pkg/util/log/clog.go:294 +0xc6
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 ⋮ [n?,s?,pebble] 25 !github.com/cockroachdb/cockroach/pkg/util/log.logfDepthInternal({0x86e51c8, 0x347defeaa3c0}, 0x3, 0x4, 0x3, 0x0?, {0x8630d28, 0x2}, {0x347de58ed910, 0x1, ...})
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 ⋮ [n?,s?,pebble] 25 ! pkg/util/log/channels.go:104 +0x650
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 [n?,s?,pebble] 27 MANIFEST flush failed: version 0: unsupported protocol version
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 [n?,s?,pebble] 27 !goroutine 102 [running]:
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 [n?,s?,pebble] 27 !github.com/cockroachdb/cockroach/pkg/util/allstacks.GetWithBuf({0x0?, 0x347defdc1798?, 0xd6afcb?})
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 [n?,s?,pebble] 27 ! pkg/util/allstacks/allstacks.go:38 +0x125
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 [n?,s?,pebble] 27 !github.com/cockroachdb/cockroach/pkg/util/allstacks.Get(...)
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 [n?,s?,pebble] 27 ! pkg/util/allstacks/allstacks.go:19
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 [n?,s?,pebble] 27 !github.com/cockroachdb/cockroach/pkg/util/log.(*loggerT).outputLogEntry(_, {{{0x0, 0x0}, {0x0, 0x0}, {0x0, 0x0}, {0x0, 0x0}, {0x0, ...}}, ...})
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 [n?,s?,pebble] 27 ! pkg/util/log/clog.go:294 +0xc6
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 [n?,s?,pebble] 27 !github.com/cockroachdb/cockroach/pkg/util/log.logfDepthInternal({0x86e51c8, 0x347defeaa3c0}, 0x3, 0x4, 0x3, 0x0?, {0x8630d28, 0x2}, {0x347de58ed910, 0x1, ...})
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 [n?,s?,pebble] 27 ! pkg/util/log/channels.go:104 +0x650
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 ⋮ [n?,s?,pebble] 25 MANIFEST flush failed: version 0: unsupported protocol version
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 ⋮ [n?,s?,pebble] 25 !goroutine 102 [running]:
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 ⋮ [n?,s?,pebble] 25 !github.com/cockroachdb/cockroach/pkg/util/allstacks.GetWithBuf({0x0?, 0x347defdc1798?, 0xd6afcb?})
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 ⋮ [n?,s?,pebble] 25 ! pkg/util/allstacks/allstacks.go:38 +0x125
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 ⋮ [n?,s?,pebble] 25 !github.com/cockroachdb/cockroach/pkg/util/allstacks.Get(...)
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 ⋮ [n?,s?,pebble] 25 ! pkg/util/allstacks/allstacks.go:19
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 ⋮ [n?,s?,pebble] 25 !github.com/cockroachdb/cockroach/pkg/util/log.(*loggerT).outputLogEntry(_, {{{0x0, 0x0}, {0x0, 0x0}, {0x0, 0x0}, {0x0, 0x0}, {0x0, ...}}, ...})
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 ⋮ [n?,s?,pebble] 25 ! pkg/util/log/clog.go:294 +0xc6
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 ⋮ [n?,s?,pebble] 25 !github.com/cockroachdb/cockroach/pkg/util/log.logfDepthInternal({0x86e51c8, 0x347defeaa3c0}, 0x3, 0x4, 0x3, 0x0?, {0x8630d28, 0x2}, {0x347de58ed910, 0x1, ...})
F260914 22:15:14.712127 102 3@pebble/version_set.go:456 ⋮ [n?,s?,pebble] 25 ! pkg/util/log/channels.go:104 +0x650
```
Cluster Node to Ip Mapping:

| Node | Public IP | Private IP |
| --- | --- | --- |
| teamcity-21516296-1789423542-02-n4cpu32-0001 | 3.17.130.163 | 10.12.19.149 |
| teamcity-21516296-1789423542-02-n4cpu32-0002 | 3.133.13.197 | 10.12.18.209 |
| teamcity-21516296-1789423542-02-n4cpu32-0003 | 3.140.241.245 | 10.12.23.94 |
| teamcity-21516296-1789423542-02-n4cpu32-0004 | 3.23.87.180 | 10.12.24.10 |

Parameters:
- MetamorphicBasaltMultiAZ=false
- MetamorphicFilesystem=xfs
- arch=amd64
- cloud=aws
- coverageBuild=false
- cpu=32
- diskCount=0
- encrypted=false
- fs=xfs
- localSSD=false
- runtimeAssertionsBuild=false
- storageNodesVersion=v0.1.19-nightly.20260914
Help

See: [roachtest README](https://github.com/cockroachdb/cockroach/blob/master/pkg/cmd/roachtest/README.md)

See: [How To Investigate \(internal\)](https://cockroachlabs.atlassian.net/l/c/SSSBr8c7)

See: [Grafana](https://go.crdb.dev/roachtest-grafana/teamcity-21516296/kv0-enc-false-nodes-3-cpu-32-binary-basalt-storage-basalt-basal/1789424102640/1789424256399)

_Logs were not uploaded to Datadog_

/cc @cockroachlabs/test-eng

[This test on roachdash](https://roachdash.crdb.dev/?filter=status:open%20t:.*kv0/enc=false/nodes=3/cpu=32/binary=basalt/storage=basalt/basalt_nodes=3/rsengine=enabled.*&sort=title+created&display=lastcommented+project) | [Improve this report!](https://github.com/cockroachdb/cockroach/tree/master/pkg/cmd/bazci/githubpost/issues)

Jira issue: CRDB-68396

Start with the linked TeamCity failure and artifacts for the kv0 roachtest; inspect the Cockroach logs around the Pebble MANIFEST flush failure and the roachtest README. The report does not identify a code location or a specific fix, so investigate the unsupported protocol version failure before choosing a change. Done means the test no longer fails with this error.

Written by the indexing model from the issue text.