16237 2026-04-09 08:36:45 +0000 AB-INT: no available tap devices to use for networking - unable to start QEMU 2026-04-28 22:11:58 +0000 1 1 5 Infrastructure AutoBuilder autobuilder unspecified x86 Multiple RESOLVED FIXED AB-INT Medium+ normal 6.0 M4 1 joaomarcos.costa mhalstead infras.ab.watcher Infras.watcher mathieu.dubois-briand paul randy.macleod richard.purdie --- --- Don't know oldest_to_newest 105000 0 joaomarcos.costa 2026-04-09 08:36:45 +0000 https://autobuilder.yoctoproject.org/valkyrie/#/builders/109/builds/211/steps/13/logs/stdio qemuarm64-musl-ptest debian13-vk-arm1 (https://swatbot.yoctoproject.org/collection/106212/) The error logs: runqemu - INFO - Acquiring lockfile /tmp/qemu-tap-locks/tap0.lock failed: [Errno 11] Resource temporarily unavailable runqemu - INFO - Acquiring lockfile /tmp/qemu-tap-locks/tap1.lock failed: [Errno 11] Resource temporarily unavailable runqemu - INFO - Acquiring lockfile /tmp/qemu-tap-locks/tap2.lock failed: [Errno 11] Resource temporarily unavailable runqemu - INFO - Acquiring lockfile /tmp/qemu-tap-locks/tap3.lock failed: [Errno 11] Resource temporarily unavailable runqemu - INFO - Acquiring lockfile /tmp/qemu-tap-locks/tap4.lock failed: [Errno 11] Resource temporarily unavailable runqemu - INFO - Acquiring lockfile /tmp/qemu-tap-locks/tap5.lock failed: [Errno 11] Resource temporarily unavailable runqemu - INFO - Acquiring lockfile /tmp/qemu-tap-locks/tap6.lock failed: [Errno 11] Resource temporarily unavailable runqemu - INFO - Acquiring lockfile /tmp/qemu-tap-locks/tap7.lock failed: [Errno 11] Resource temporarily unavailable runqemu - INFO - Acquiring lockfile /tmp/qemu-tap-locks/tap8.lock failed: [Errno 11] Resource temporarily unavailable runqemu - INFO - Acquiring lockfile /tmp/qemu-tap-locks/tap9.lock failed: [Errno 11] Resource temporarily unavailable runqemu - INFO - Acquiring lockfile /tmp/qemu-tap-locks/tap10.lock failed: [Errno 11] Resource temporarily unavailable runqemu - INFO - Acquiring lockfile /tmp/qemu-tap-locks/tap11.lock failed: [Errno 11] Resource temporarily unavailable runqemu - INFO - Acquiring lockfile /tmp/qemu-tap-locks/tap12.lock failed: [Errno 11] Resource temporarily unavailable runqemu - INFO - Acquiring lockfile /tmp/qemu-tap-locks/tap13.lock failed: [Errno 11] Resource temporarily unavailable runqemu - INFO - Acquiring lockfile /tmp/qemu-tap-locks/tap14.lock failed: [Errno 11] Resource temporarily unavailable runqemu - INFO - Acquiring lockfile /tmp/qemu-tap-locks/tap15.lock failed: [Errno 11] Resource temporarily unavailable runqemu - INFO - Acquiring lockfile /tmp/qemu-tap-locks/tap16.lock failed: [Errno 11] Resource temporarily unavailable runqemu - INFO - Acquiring lockfile /tmp/qemu-tap-locks/tap17.lock failed: [Errno 11] Resource temporarily unavailable runqemu - INFO - Acquiring lockfile /tmp/qemu-tap-locks/tap18.lock failed: [Errno 11] Resource temporarily unavailable runqemu - INFO - Acquiring lockfile /tmp/qemu-tap-locks/tap19.lock failed: [Errno 11] Resource temporarily unavailable runqemu - INFO - Acquiring lockfile /tmp/qemu-tap-locks/tap20.lock failed: [Errno 11] Resource temporarily unavailable runqemu - INFO - Acquiring lockfile /tmp/qemu-tap-locks/tap21.lock failed: [Errno 11] Resource temporarily unavailable runqemu - INFO - Acquiring lockfile /tmp/qemu-tap-locks/tap22.lock failed: [Errno 11] Resource temporarily unavailable runqemu - INFO - Acquiring lockfile /tmp/qemu-tap-locks/tap23.lock failed: [Errno 11] Resource temporarily unavailable runqemu - INFO - Acquiring lockfile /tmp/qemu-tap-locks/tap24.lock failed: [Errno 11] Resource temporarily unavailable runqemu - INFO - Acquiring lockfile /tmp/qemu-tap-locks/tap25.lock failed: [Errno 11] Resource temporarily unavailable runqemu - INFO - Acquiring lockfile /tmp/qemu-tap-locks/tap26.lock failed: [Errno 11] Resource temporarily unavailable runqemu - INFO - Acquiring lockfile /tmp/qemu-tap-locks/tap27.lock failed: [Errno 11] Resource temporarily unavailable runqemu - INFO - Acquiring lockfile /tmp/qemu-tap-locks/tap28.lock failed: [Errno 11] Resource temporarily unavailable runqemu - INFO - Acquiring lockfile /tmp/qemu-tap-locks/tap29.lock failed: [Errno 11] Resource temporarily unavailable runqemu - INFO - Acquiring lockfile /tmp/qemu-tap-locks/tap30.lock failed: [Errno 11] Resource temporarily unavailable runqemu - INFO - Acquiring lockfile /tmp/qemu-tap-locks/tap31.lock failed: [Errno 11] Resource temporarily unavailable runqemu - ERROR - Error: There are no available tap devices to use for networking, runqemu - ERROR - and I see /etc/runqemu-nosudo exists, so I am not going to try creating runqemu - ERROR - a new one with sudo. runqemu - INFO - Cleaning up runqemu - INFO - Host uptime: 325812.27 runqemu - INFO - Removing /srv/pokybuild/yocto-worker/qemuarm64-musl-ptest/build/build/tmp/deploy/images/qemuarm64/core-image-ptest-lzo-qemuarm64.rootfs-20260403093923.ext4 tput: No value for $TERM and no -T specified WARNING: core-image-ptest-lzo-1.0-r0 do_testimage: runqemu during is_alive() test ERROR: core-image-ptest-lzo-1.0-r0 do_testimage: Error executing a python function in exec_func_python() autogenerated: The stack trace of python calls that resulted in this exception/failure was: File: 'exec_func_python() autogenerated', lineno: 2, function: <module> 0001: *** 0002:do_testimage(d) 0003: File: '/srv/pokybuild/yocto-worker/qemuarm64-musl-ptest/build/layers/openembedded-core/meta/classes-recipe/testimage.bbclass', lineno: 126, function: do_testimage 0122: dump-guest-memory {"paging":false,"protocol":"file:%s.img"} 0123:} 0124: 0125:python do_testimage() { *** 0126: testimage_main(d) 0127:} 0128: 0129:addtask testimage 0130:do_testimage[nostamp] = "1" File: '/srv/pokybuild/yocto-worker/qemuarm64-musl-ptest/build/layers/openembedded-core/meta/classes-recipe/testimage.bbclass', lineno: 379, function: testimage_main 0375: orig_sigterm_handler = signal.signal(signal.SIGTERM, sigterm_exception) 0376: try: 0377: # We need to check if runqemu ends unexpectedly 0378: # or if the worker send us a SIGTERM *** 0379: tc.target.start(params=d.getVar("TEST_QEMUPARAMS"), runqemuparams=d.getVar("TEST_RUNQEMUPARAMS")) 0380: import threading 0381: try: 0382: threading.Timer(int(d.getVar("TEST_OVERALL_TIMEOUT")), handle_test_timeout, (int(d.getVar("TEST_OVERALL_TIMEOUT")),)).start() 0383: except ValueError: File: '/srv/pokybuild/yocto-worker/qemuarm64-musl-ptest/build/layers/openembedded-core/meta/lib/oeqa/core/target/qemu.py', lineno: 91, function: start 0087: except (subprocess.CalledProcessError, subprocess.TimeoutExpired, FileNotFoundError) as err: 0088: msg += "Error running command: %s\n%s\n" % (blcmd, err) 0089: msg += "\n\n===== end: snippet =====\n" 0090: *** 0091: raise RuntimeError("FAILED to start qemu - check the task log and the boot log %s" % (msg)) 0092: 0093: def stop(self): 0094: self.runner.stop() Exception: RuntimeError: FAILED to start qemu - check the task log and the boot log 105018 1 randy.macleod 2026-04-09 14:48:17 +0000 Scotty, We Need More Power! err taps. Increase to 64 taps. 105031 2 randy.macleod 2026-04-09 15:34:22 +0000 Email sent to helpdesk. 105032 3 mhalstead 2026-04-09 19:38:42 +0000 I've updated the config to create 64 tap devs on boot. We should be able to close this after the next maintenance window. 105285 4 richard.purdie 2026-04-28 22:11:58 +0000 Thanks Michael!