JavaScript: Wrong size for type statvfs, followed by org.openqa.selenium.WebDriverException: connection refused

[walde-k]

System

• Version: geckodriver 0.19.1
• Platform: Linux SLES 12 SP3 , arch s390x, kernel: '4.4.162-94.72-default', java.version: '1.8.0_151'
• Firefox: 60.4.0
• Selenium: version: '3.141.59', revision: 'e82be7d358'

Testcase

Running Selenium test with headless Mozilla Firefox and geckodriver

Stacktrace

11:43:28 1547808207958 geckodriver INFO geckodriver 0.19.1
11:43:28 1547808207973 geckodriver INFO Listening on 127.0.0.1:28167
11:43:28 1547808208146 mozrunner::runner INFO Running command: "/usr/lib64/firefox/firefox" "-marionette" "-headless" "-profile" "/tmp/rust_mozprofile.2Fl2QO7bckvb"
11:43:28 *** You are running in headless mode.
11:43:29 JavaScript error: resource://gre/modules/workers/require.js line 141 > Function line 3 > eval, line 933: Error: Error: Wrong size for type statvfs: expected 88, found 96 (ctypes.StructType("statvfs", [{ "padding_0": ctypes.uint8_t.array(4) }, { "f_frsize": ctypes.int64_t }, { "padding_1": ctypes.uint8_t.array(12) }, { "f_bavail": ctypes.uint64_t }, { "padding_2": ctypes.uint8_t.array(56) }]))
11:43:32 console.error: "Could not write session state file " (new Error("_initWorker called too early! Please read the session file from disk first.", "resource:///modules/sessionstore/SessionFile.jsm", 337)) "_initWorker/<@resource:///modules/sessionstore/SessionFile.jsm:337:15\n_initWorker@resource:///modules/sessionstore/SessionFile.jsm:330:12\n_postToWorker@resource:///modules/sessionstore/SessionFile.jsm:354:11\nwrite@resource:///modules/sessionstore/SessionFile.jsm:394:19\nwrite@resource:///modules/sessionstore/SessionFile.jsm:66:12\n_writeState@resource:///modules/sessionstore/SessionSaver.jsm:357:12\n_saveState@resource:///modules/sessionstore/SessionSaver.jsm:295:12\n_saveStateAsync@resource:///modules/sessionstore/SessionSaver.jsm:341:5\nsaveStateAsyncWhenIdle@resource:///modules/sessionstore/SessionSaver.jsm:192:9\n"
11:44:28 2019-01-18 11:44:28 [FATAL] [e.wss.guitest.WifeGuiTest] Decoding 1: org.openqa.selenium.WebDriverException: connection refused
11:44:28 Build info: version: '3.141.59', revision: 'e82be7d358', time: '2018-11-14T08:17:03'
11:44:28 Driver info: driver.version: FirefoxDriver
11:44:28 remote stacktrace:
11:44:28 org.openqa.selenium.WebDriverException: connection refused
11:44:28 Build info: version: '3.141.59', revision: 'e82be7d358', time: '2018-11-14T08:17:03'
11:44:28 Driver info: driver.version: FirefoxDriver
.....

FULL LOG IN ATTACHMENT
geckotrace.txt

Trace-level log

[andreastt]

This sounds like a Firefox bug, causing Firefox to crash and consequently geckodriver to lose the connection.

If you are able to get a crash dump out of Firefox, I would encourage you to file a bug on Firefox.

[whimboo]

Could you please attach a trace-level log from geckodriver? It would be good to know what's actually going on.

[lock]

This issue has been automatically locked since there has not been any recent activity after it was closed. If you have run into an issue you think is related, please open a new issue.