[2026-01-01 15:07:21,718][ INFO][PID:4013416] Marking build as starting [2026-01-01 15:07:21,799][ INFO][PID:4013416] Checking that /var/lib/copr/public_html/results/siddhesh/mbp-gcc-16/fedora-rawhide-i386/repodata/repomd.xml exists [2026-01-01 15:07:21,803][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:07:21,813][ INFO][PID:4013416] VM allocation process starts [2026-01-01 15:07:21,835][ INFO][PID:4013416] Trying to allocate VM: ResallocHost, ticket_id=614690, requested_tags=['copr_builder', 'arch_i386'] [2026-01-01 15:07:26,847][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:07:27,902][ INFO][PID:4013416] Allocated host ResallocHost, ticket_id=614690, hostname=98.92.19.134, name=aws_x86_64_normalreserved_prod_00882204_20260101_150000, requested_tags=['copr_builder', 'arch_i386'] [2026-01-01 15:07:27,903][ INFO][PID:4013416] Allocating ssh connection to builder [2026-01-01 15:07:27,905][ INFO][PID:4013416] Checking that builder machine is OK [2026-01-01 15:07:28,326][ INFO][PID:4013416] Running remote command: copr-builder-ready fedora-rawhide-i386 [2026-01-01 15:07:28,646][ INFO][PID:4013416] Red Hat subscription not needed for fedora-rawhide-i386 Builder is ready to be used [2026-01-01 15:07:28,647][ INFO][PID:4013416] Filling build.info file with builder info [2026-01-01 15:07:28,647][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:07:28,649][ INFO][PID:4013416] Sending build state back to frontend: { "builds": [ { "timeout": 115200, "frontend_base_url": "https://copr.fedorainfracloud.org", "memory_reqs": 2048, "enable_net": false, "project_owner": "siddhesh", "project_name": "mbp-gcc-16", "project_dirname": "mbp-gcc-16", "submitter": "siddhesh", "ended_on": null, "started_on": 1767280048.6495283, "submitted_on": null, "status": 3, "chroot": "fedora-rawhide-i386", "arch": "i386", "buildroot_pkgs": [], "task_id": "9964420-fedora-rawhide-i386", "build_id": 9964420, "package_name": "userspace-rcu", "package_version": "0.15.5-1", "git_repo": "https://copr-dist-git.fedorainfracloud.org/git/siddhesh/mbp-gcc-16/userspace-rcu", "git_hash": "cf8d8d928e60c2de67214bab05c32d5e22690005", "git_branch": null, "source_type": null, "source_json": null, "pkg_name": null, "pkg_main_version": null, "pkg_epoch": null, "pkg_release": null, "srpm_url": null, "uses_devel_repo": false, "sandbox": "siddhesh/mbp-gcc-16--siddhesh", "results": null, "appstream": false, "allow_user_ssh": false, "ssh_public_keys": null, "storage": 0, "repos": [ { "baseurl": "https://download.copr.fedorainfracloud.org/results/siddhesh/mbp-gcc-16/fedora-rawhide-i386/", "id": "copr_base", "name": "Copr repository", "priority": null }, { "baseurl": "https://kojipkgs.fedoraproject.org/repos/f44-build-side-124978/latest/$basearch/", "id": "https_kojipkgs_fedoraproject_org_repos_f44_build_side_124978_latest_basearch", "name": "Additional repo https_kojipkgs_fedoraproject_org_repos_f44_build_side_124978_latest_basearch" } ], "background": true, "fedora_review": false, "isolation": "default", "repo_priority": null, "tags": [ "arch_i386" ], "with_opts": [], "without_opts": [], "destdir": "/var/lib/copr/public_html/results/siddhesh/mbp-gcc-16", "results_repo_url": "https://download.copr.fedorainfracloud.org/results/siddhesh/mbp-gcc-16", "result_dir": "09964420-userspace-rcu", "built_packages": "", "id": 9964420, "mockchain_macros": { "copr_username": "siddhesh", "copr_projectname": "mbp-gcc-16", "vendor": "Fedora Project COPR (siddhesh/mbp-gcc-16)" } } ] } [2026-01-01 15:07:28,736][ INFO][PID:4013416] Sending fedora-messaging bus message in build.start [2026-01-01 15:07:30,414][ INFO][PID:4013416] Sending fedora-messaging bus message in chroot.start [2026-01-01 15:07:30,464][ INFO][PID:4013416] Starting remote build: copr-rpmbuild --verbose --drop-resultdir --task-url https://copr.fedorainfracloud.org/backend/get-build-task/9964420-fedora-rawhide-i386 --chroot fedora-rawhide-i386 --detached [2026-01-01 15:07:30,843][ INFO][PID:4013416] The copr-rpmbuild seems started, per: stdout: stderr: Warning: Permanently added '98.92.19.134' (ED25519) to the list of known hosts. [2026-01-01 15:07:30,844][ INFO][PID:4013416] Downloading the builder-live.log file, attempt 1 [2026-01-01 15:07:30,854][ INFO][PID:4013416] Popen command started: ssh -F /home/copr/.ssh/config mockbuilder@98.92.19.134 copr-rpmbuild-log [2026-01-01 15:07:35,881][ INFO][PID:4013416] Periodic builder liveness probe: alive [2026-01-01 15:07:35,888][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:07:40,891][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:07:45,893][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:07:50,894][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:07:55,896][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:08:00,897][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:08:05,901][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:08:10,921][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:08:15,929][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:08:20,932][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:08:25,934][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:08:30,938][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:08:35,959][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:08:40,976][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:08:45,983][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:08:50,988][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:08:55,996][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:09:00,998][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:09:06,000][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:09:11,005][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:09:16,007][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:09:21,024][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:09:26,029][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:09:31,031][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:09:36,033][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:09:41,038][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:09:46,039][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:09:51,041][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:09:56,044][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:10:01,045][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:10:06,048][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:10:11,050][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:10:16,051][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:10:21,056][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:10:26,057][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:10:31,058][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:10:36,063][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:10:41,064][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:10:46,065][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:10:51,067][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:10:56,069][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:11:01,071][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:11:06,074][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:11:11,081][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:11:16,083][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:11:21,086][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:11:26,092][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:11:31,093][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:11:36,095][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:11:41,098][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:11:46,102][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:11:51,105][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:11:56,110][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:12:01,111][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:12:06,112][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:12:11,113][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:12:16,114][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:12:21,115][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:12:26,119][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:12:31,123][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:12:36,133][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:12:41,134][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:12:46,138][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:12:51,143][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:12:56,144][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:13:01,147][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:13:06,150][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:13:11,151][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:13:16,152][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:13:21,153][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:13:26,155][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:13:31,158][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:13:36,159][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:13:41,161][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:13:46,162][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:13:51,167][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:13:56,168][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:14:01,170][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:14:06,171][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:14:11,173][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:14:16,188][ INFO][PID:4013416] Checking for cancel request [2026-01-01 15:14:17,450][ INFO][PID:4013416] Downloading results from builder [2026-01-01 15:14:17,451][ INFO][PID:4013416] rsyncing of mockbuilder@98.92.19.134:/var/lib/copr-rpmbuild/results/ to /var/lib/copr/public_html/results/siddhesh/mbp-gcc-16/fedora-rawhide-i386/09964420-userspace-rcu started [2026-01-01 15:14:17,452][ INFO][PID:4013416] Popen command started: /usr/bin/rsync -rltDvH --chmod=D755,F644 -e 'ssh -F /home/copr/.ssh/config' mockbuilder@98.92.19.134:/var/lib/copr-rpmbuild/results/ /var/lib/copr/public_html/results/siddhesh/mbp-gcc-16/fedora-rawhide-i386/09964420-userspace-rcu/ &> /var/lib/copr/public_html/results/siddhesh/mbp-gcc-16/fedora-rawhide-i386/09964420-userspace-rcu/build-09964420.rsync.log [2026-01-01 15:14:17,685][ INFO][PID:4013416] rsyncing finished. [2026-01-01 15:14:17,686][ INFO][PID:4013416] Releasing VM back to pool [2026-01-01 15:14:17,696][ INFO][PID:4013416] Searching for 'success' file in resultdir [2026-01-01 15:14:17,696][ INFO][PID:4013416] Going to sign pkgs from source: 9964420-fedora-rawhide-i386 in chroot: /var/lib/copr/public_html/results/siddhesh/mbp-gcc-16/fedora-rawhide-i386 [2026-01-01 15:14:17,697][ INFO][PID:4013416] Calling '/bin/sign -u siddhesh#mbp-gcc-16@copr.fedorahosted.org -p' (attempt #1) [2026-01-01 15:14:17,965][ INFO][PID:4013416] Calling '/bin/sign -4 -h sha256 -u siddhesh#mbp-gcc-16@copr.fedorahosted.org -r /var/lib/copr/public_html/results/siddhesh/mbp-gcc-16/fedora-rawhide-i386/09964420-userspace-rcu/userspace-rcu-debugsource-0.15.5-1.fc44.i686.rpm' (attempt #1) [2026-01-01 15:14:18,619][ INFO][PID:4013416] signed rpm: /var/lib/copr/public_html/results/siddhesh/mbp-gcc-16/fedora-rawhide-i386/09964420-userspace-rcu/userspace-rcu-debugsource-0.15.5-1.fc44.i686.rpm [2026-01-01 15:14:18,620][ INFO][PID:4013416] Calling '/bin/sign -4 -h sha256 -u siddhesh#mbp-gcc-16@copr.fedorahosted.org -r /var/lib/copr/public_html/results/siddhesh/mbp-gcc-16/fedora-rawhide-i386/09964420-userspace-rcu/userspace-rcu-0.15.5-1.fc44.i686.rpm' (attempt #1) [2026-01-01 15:14:19,275][ INFO][PID:4013416] signed rpm: /var/lib/copr/public_html/results/siddhesh/mbp-gcc-16/fedora-rawhide-i386/09964420-userspace-rcu/userspace-rcu-0.15.5-1.fc44.i686.rpm [2026-01-01 15:14:19,275][ INFO][PID:4013416] Calling '/bin/sign -4 -h sha256 -u siddhesh#mbp-gcc-16@copr.fedorahosted.org -r /var/lib/copr/public_html/results/siddhesh/mbp-gcc-16/fedora-rawhide-i386/09964420-userspace-rcu/userspace-rcu-devel-0.15.5-1.fc44.i686.rpm' (attempt #1) [2026-01-01 15:14:20,004][ INFO][PID:4013416] signed rpm: /var/lib/copr/public_html/results/siddhesh/mbp-gcc-16/fedora-rawhide-i386/09964420-userspace-rcu/userspace-rcu-devel-0.15.5-1.fc44.i686.rpm [2026-01-01 15:14:20,004][ INFO][PID:4013416] Calling '/bin/sign -4 -h sha256 -u siddhesh#mbp-gcc-16@copr.fedorahosted.org -r /var/lib/copr/public_html/results/siddhesh/mbp-gcc-16/fedora-rawhide-i386/09964420-userspace-rcu/userspace-rcu-debuginfo-0.15.5-1.fc44.i686.rpm' (attempt #1) [2026-01-01 15:14:20,826][ INFO][PID:4013416] signed rpm: /var/lib/copr/public_html/results/siddhesh/mbp-gcc-16/fedora-rawhide-i386/09964420-userspace-rcu/userspace-rcu-debuginfo-0.15.5-1.fc44.i686.rpm [2026-01-01 15:14:20,827][ INFO][PID:4013416] Calling '/bin/sign -4 -h sha256 -u siddhesh#mbp-gcc-16@copr.fedorahosted.org -r /var/lib/copr/public_html/results/siddhesh/mbp-gcc-16/fedora-rawhide-i386/09964420-userspace-rcu/userspace-rcu-0.15.5-1.fc44.src.rpm' (attempt #1) [2026-01-01 15:14:21,669][ INFO][PID:4013416] signed rpm: /var/lib/copr/public_html/results/siddhesh/mbp-gcc-16/fedora-rawhide-i386/09964420-userspace-rcu/userspace-rcu-0.15.5-1.fc44.src.rpm [2026-01-01 15:14:21,670][ INFO][PID:4013416] Sign done [2026-01-01 15:14:21,671][ INFO][PID:4013416] Incremental createrepo run, adding 09964420-userspace-rcu into https://download.copr.fedorainfracloud.org/results/siddhesh/mbp-gcc-16/fedora-rawhide-i386, (auto-create-repo=True) [2026-01-01 15:14:21,672][ INFO][PID:4013416] Running command 'copr-repo --batched /var/lib/copr/public_html/results/siddhesh/mbp-gcc-16/fedora-rawhide-i386 --add 09964420-userspace-rcu --no-appstream-metadata' as PID 4054606 [2026-01-01 15:14:58,824][ INFO][PID:4013416] Finished after 37 seconds with exit code 0 (copr-repo --batched /var/lib/copr/public_html/results/siddhesh/mbp-gcc-16/fedora-rawhide-i386 --add 09964420-userspace-rcu --no-appstream-metadata) [2026-01-01 15:14:58,867][ INFO][PID:4013416] Getting build details [2026-01-01 15:14:58,868][ INFO][PID:4013416] Listing built binary packages in /var/lib/copr/public_html/results/siddhesh/mbp-gcc-16/fedora-rawhide-i386/09964420-userspace-rcu [2026-01-01 15:14:58,868][ INFO][PID:4013416] Built packages: ['userspace-rcu 0.15.5', 'userspace-rcu-debuginfo 0.15.5', 'userspace-rcu-debugsource 0.15.5', 'userspace-rcu-devel 0.15.5'] [2026-01-01 15:14:58,869][ INFO][PID:4013416] build details: {'built_packages': 'userspace-rcu 0.15.5\nuserspace-rcu-debuginfo 0.15.5\nuserspace-rcu-debugsource 0.15.5\nuserspace-rcu-devel 0.15.5'} [2026-01-01 15:14:58,870][ INFO][PID:4013416] Retrieving pubkey [2026-01-01 15:14:58,870][ INFO][PID:4013416] Calling '/bin/sign -u siddhesh#mbp-gcc-16@copr.fedorahosted.org -p' (attempt #1) [2026-01-01 15:14:59,140][ INFO][PID:4013416] Added pubkey for user siddhesh project mbp-gcc-16 into: /var/lib/copr/public_html/results/siddhesh/mbp-gcc-16/pubkey.gpg [2026-01-01 15:14:59,141][ INFO][PID:4013416] Finished build: id=9964420 failed=False timeout=115200 destdir=/var/lib/copr/public_html/results/siddhesh/mbp-gcc-16 chroot=fedora-rawhide-i386 [2026-01-01 15:14:59,143][ INFO][PID:4013416] Worker succeeded build, took 450.4939556121826 [2026-01-01 15:14:59,144][ INFO][PID:4013416] Sending build state back to frontend: { "builds": [ { "timeout": 115200, "frontend_base_url": "https://copr.fedorainfracloud.org", "memory_reqs": 2048, "enable_net": false, "project_owner": "siddhesh", "project_name": "mbp-gcc-16", "project_dirname": "mbp-gcc-16", "submitter": "siddhesh", "ended_on": 1767280499.1434839, "started_on": 1767280048.6495283, "submitted_on": null, "status": 1, "chroot": "fedora-rawhide-i386", "arch": "i386", "buildroot_pkgs": [], "task_id": "9964420-fedora-rawhide-i386", "build_id": 9964420, "package_name": "userspace-rcu", "package_version": "0.15.5-1", "git_repo": "https://copr-dist-git.fedorainfracloud.org/git/siddhesh/mbp-gcc-16/userspace-rcu", "git_hash": "cf8d8d928e60c2de67214bab05c32d5e22690005", "git_branch": null, "source_type": null, "source_json": null, "pkg_name": null, "pkg_main_version": null, "pkg_epoch": null, "pkg_release": null, "srpm_url": null, "uses_devel_repo": false, "sandbox": "siddhesh/mbp-gcc-16--siddhesh", "results": { "packages": [ { "name": "userspace-rcu", "epoch": null, "version": "0.15.5", "release": "1.fc44", "arch": "i686" }, { "name": "userspace-rcu-debuginfo", "epoch": null, "version": "0.15.5", "release": "1.fc44", "arch": "i686" }, { "name": "userspace-rcu-debugsource", "epoch": null, "version": "0.15.5", "release": "1.fc44", "arch": "i686" }, { "name": "userspace-rcu-devel", "epoch": null, "version": "0.15.5", "release": "1.fc44", "arch": "i686" }, { "name": "userspace-rcu", "epoch": null, "version": "0.15.5", "release": "1.fc44", "arch": "src" } ] }, "appstream": false, "allow_user_ssh": false, "ssh_public_keys": null, "storage": 0, "repos": [ { "baseurl": "https://download.copr.fedorainfracloud.org/results/siddhesh/mbp-gcc-16/fedora-rawhide-i386/", "id": "copr_base", "name": "Copr repository", "priority": null }, { "baseurl": "https://kojipkgs.fedoraproject.org/repos/f44-build-side-124978/latest/$basearch/", "id": "https_kojipkgs_fedoraproject_org_repos_f44_build_side_124978_latest_basearch", "name": "Additional repo https_kojipkgs_fedoraproject_org_repos_f44_build_side_124978_latest_basearch" } ], "background": true, "fedora_review": false, "isolation": "default", "repo_priority": null, "tags": [ "arch_i386" ], "with_opts": [], "without_opts": [], "destdir": "/var/lib/copr/public_html/results/siddhesh/mbp-gcc-16", "results_repo_url": "https://download.copr.fedorainfracloud.org/results/siddhesh/mbp-gcc-16", "result_dir": "09964420-userspace-rcu", "built_packages": "userspace-rcu 0.15.5\nuserspace-rcu-debuginfo 0.15.5\nuserspace-rcu-debugsource 0.15.5\nuserspace-rcu-devel 0.15.5", "id": 9964420, "mockchain_macros": { "copr_username": "siddhesh", "copr_projectname": "mbp-gcc-16", "vendor": "Fedora Project COPR (siddhesh/mbp-gcc-16)" } } ] } [2026-01-01 15:14:59,198][ INFO][PID:4013416] Sending fedora-messaging bus message in build.end [2026-01-01 15:14:59,227][ INFO][PID:4013416] Compressing /var/lib/copr/public_html/results/siddhesh/mbp-gcc-16/fedora-rawhide-i386/09964420-userspace-rcu/builder-live.log by gzip [2026-01-01 15:14:59,229][ INFO][PID:4013416] Running command 'gzip /var/lib/copr/public_html/results/siddhesh/mbp-gcc-16/fedora-rawhide-i386/09964420-userspace-rcu/builder-live.log' as PID 4058198 [2026-01-01 15:14:59,298][ INFO][PID:4013416] Finished after 0 seconds with exit code 0 (gzip /var/lib/copr/public_html/results/siddhesh/mbp-gcc-16/fedora-rawhide-i386/09964420-userspace-rcu/builder-live.log) [2026-01-01 15:14:59,298][ INFO][PID:4013416] Compressing /var/lib/copr/public_html/results/siddhesh/mbp-gcc-16/fedora-rawhide-i386/09964420-userspace-rcu/backend.log by gzip [2026-01-01 15:14:59,299][ INFO][PID:4013416] Running command 'gzip /var/lib/copr/public_html/results/siddhesh/mbp-gcc-16/fedora-rawhide-i386/09964420-userspace-rcu/backend.log' as PID 4058206