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bradfitz/vmtest_bad_kernel
tailscale/cmd
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Brad Fitzpatrick 5e33c4125f tstest/natlab/vmtest: add buggy Linux 7.0 gokrazy repro 
Add a GokrazyBuggyLinux70 VM image that boots the Linux 7.0 kernel
package from github.com/tailscale/gokrazy-kernel-buggy-linux-7_0 under
QEMU q35 with the emulated igb NIC. The image lets vmtest exercise the
UDP GSO regression independently of the host kernel version.

Add TTA helpers to report ethtool netdev features and to run a TCP
bulk-send probe between VMs. The diagnostic test verifies that QEMU's
igb path exposes tx-udp-segmentation and tx-gso-partial.

The mitigation test boots a buggy gokrazy node and a regular gokrazy
node, demonstrates that a TCP transfer stalls without
never-gso-equal-tail, then applies the node attribute and verifies the
same transfer succeeds.

Updates #19777

Change-Id: I21f1e5dc85d556eb514ffa361ee39aad142b7f2b
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2026-05-29 21:16:50 +00:00
..
addlicense all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
build-webclient all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
checkmetrics all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
cigocacher cmd/cigocacher: make --stats flag best-effort (#18761) 2026-02-19 16:06:12 +00:00
cloner cmd/cloner: preserve nil-valued entries when cloning map (#19749) 2026-05-14 10:30:59 -04:00
connector-gen all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
containerboot cmd/containerboot: clamp MSS to PMTU for proxy group pods (#19686) 2026-05-28 12:57:38 +01:00
derper tstest/integration/jswasmtest: add headless-Chromium tests for @tailscale/connect 2026-05-20 10:48:29 -07:00
derpprobe all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
dist all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
distsign all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
featuretags all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
get-authkey all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
gitops-pusher tsnet: make workload identity federation opt-in 2026-05-06 18:43:45 -07:00
hello cmd/hello: split css and js into separate files (#19771) 2026-05-15 09:37:22 -07:00
jsonimports all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
k8s-nameserver cmd/vet: add subtestnames analyzer; fix all existing violations 2026-04-05 15:52:51 -07:00
k8s-operator cmd/k8s-operator: fix token exchange for identity federation (#19845) 2026-05-27 16:45:07 +01:00
k8s-proxy cmd/containerboot,cmd/k8s-proxy,kube: add authkey renewal to k8s-proxy (#19221) 2026-04-15 16:13:46 +01:00
mkmanifest all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
mkpkg all: use Go 1.26 things, run most gofix modernizers 2026-03-06 13:32:03 -08:00
mkversion all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
nardump tool/updateflakes, cmd/nardump: replace update-flake.sh with Go tool 2026-04-28 10:18:32 -07:00
natc all: use bart.Lite instead of bart.Table where appropriate 2026-03-24 14:45:23 +00:00
netlogfmt all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
nginx-auth all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
omitsize all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
pgproxy cmd/pgproxy: fix client TLS handshake timeout 2026-05-11 11:12:11 -07:00
printdep cmd/printdep: add --next flag to use rc Go build hash instead 2026-01-27 14:49:56 -08:00
proxy-test-server all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
proxy-to-grafana all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
sniproxy all: migrate code off Notify.NetMap to Notify.SelfChange 2026-05-01 06:51:40 -07:00
speedtest all: use Go 1.26 things, run most gofix modernizers 2026-03-06 13:32:03 -08:00
ssh-auth-none-demo ssh: replace tempfork with tailscale/gliderssh 2026-04-07 11:59:38 +01:00
stunc all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
stund derp,types,util: use bufio Peek+Discard for allocation-free fast reads (#19067) 2026-03-24 10:52:20 -04:00
stunstamp all: use Go 1.26 things, run most gofix modernizers 2026-03-06 13:32:03 -08:00
sync-containers all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
systray client/systray: support several different color themes 2026-04-27 18:54:14 -07:00
tailscale cmd/tailscale/cli: add whoami subcommand 2026-05-28 10:49:17 -07:00
tailscaled cmd/tailscaled,types/logger: remove TS_DEBUG_MEMORY and associated logger 2026-05-27 09:09:05 -07:00
testcontrol all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
testwrapper cmd/testwrapper, tstest: move test sharding out of test code 2026-05-27 16:53:17 -07:00
tl-longchain all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
tsconnect tstest/integration/jswasmtest: add headless-Chromium tests for @tailscale/connect 2026-05-20 10:48:29 -07:00
tsidp go.mod: bump dependencies to resolve govulncheck warnings (#19884) 2026-05-27 12:24:59 -07:00
tsnet-proxy cmd/tsnet-proxy: add tsnet-based port proxy tool (#19468) 2026-04-22 13:34:18 -04:00
tsp control/tsp, cmd/tsp: add low-level Tailscale protocol client and tool 2026-04-16 20:00:25 -07:00
tsshd all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
tta tstest/natlab/vmtest: add buggy Linux 7.0 gokrazy repro 2026-05-29 21:16:50 +00:00
vet cmd/vet/lowerell, drive/driveimpl: forbid variables named "l" or "I" 2026-05-04 14:03:28 -07:00
viewer cmd/cloner: preserve nil-valued entries when cloning map (#19749) 2026-05-14 10:30:59 -04:00
vnet all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
xdpderper all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00