ci starts bisection 2023-03-25 19:36:06.117387213 +0000 UTC m=+60250.270098529 bisecting fixing commit since 0b1dcc2cf55ae6523c6fbd0d741b3ac28c9f4536 building syzkaller on 74a66371788c1eb22bde25c9c422c7754596d7f5 ensuring issue is reproducible on original commit 0b1dcc2cf55ae6523c6fbd0d741b3ac28c9f4536 testing commit 0b1dcc2cf55ae6523c6fbd0d741b3ac28c9f4536 gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 39f10c5e506aa72279db2ae053f5c76ee08241e44d1c08a2ee706f0ec26eadc6 run #0: crashed: possible deadlock in nci_start_poll run #1: crashed: possible deadlock in nci_start_poll run #2: crashed: possible deadlock in virtual_nci_close run #3: crashed: possible deadlock in nci_start_poll run #4: crashed: possible deadlock in nci_start_poll run #5: crashed: possible deadlock in virtual_nci_close run #6: crashed: possible deadlock in nci_start_poll run #7: crashed: possible deadlock in nci_start_poll run #8: crashed: possible deadlock in nci_start_poll run #9: crashed: possible deadlock in nci_start_poll run #10: crashed: possible deadlock in nci_start_poll run #11: crashed: possible deadlock in nci_start_poll run #12: crashed: possible deadlock in nci_start_poll run #13: crashed: possible deadlock in nci_start_poll run #14: crashed: possible deadlock in nci_start_poll run #15: crashed: possible deadlock in nci_start_poll run #16: crashed: possible deadlock in nci_start_poll run #17: crashed: possible deadlock in nci_start_poll run #18: crashed: possible deadlock in nci_start_poll run #19: crashed: possible deadlock in nci_start_poll testing current HEAD 4bdec23f971b1a5caf7a18ae117e44bdfaf26c93 testing commit 4bdec23f971b1a5caf7a18ae117e44bdfaf26c93 gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 73219ea4271ae5ea4594742b857d48544f3099facb9d185a7edf18bf7b7b58d2 all runs: OK # git bisect start 4bdec23f971b1a5caf7a18ae117e44bdfaf26c93 0b1dcc2cf55ae6523c6fbd0d741b3ac28c9f4536 Bisecting: 16003 revisions left to test after this (roughly 14 steps) [86ce04f39b3013b99e85412a615b4cdd616c85cd] Merge branch 'dt-bindings-ocelot-switches' testing commit 86ce04f39b3013b99e85412a615b4cdd616c85cd gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 047bcdb4bbcfc25c5680f80b6b00c02073bd076187323781cd850e259b4f67c5 all runs: OK # git bisect bad 86ce04f39b3013b99e85412a615b4cdd616c85cd Bisecting: 8066 revisions left to test after this (roughly 13 steps) [1ca06f1c1acecbe02124f14a37cce347b8c1a90c] Merge tag 'xtensa-20221213' of https://github.com/jcmvbkbc/linux-xtensa testing commit 1ca06f1c1acecbe02124f14a37cce347b8c1a90c gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 923d900ad3c9f5e22f728bc8de49708fd787ef809341be9868a94e5f26137706 all runs: crashed: possible deadlock in nci_start_poll # git bisect good 1ca06f1c1acecbe02124f14a37cce347b8c1a90c Bisecting: 3966 revisions left to test after this (roughly 12 steps) [8fa590bf344816c925810331eea8387627bbeb40] Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm testing commit 8fa590bf344816c925810331eea8387627bbeb40 gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 65cb6e759dda03ee93bb001a63783ccf1fda947b260470e878b0e4e4d6613dab all runs: OK # git bisect bad 8fa590bf344816c925810331eea8387627bbeb40 Bisecting: 2027 revisions left to test after this (roughly 11 steps) [fba119cee1412f49c472f3913241d00f830761fd] Merge tag 'wireless-next-2022-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next testing commit fba119cee1412f49c472f3913241d00f830761fd gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: bde10d2f3869c29dffb05f0a280416531d45f2370196e661225f61e024eb524a all runs: OK # git bisect bad fba119cee1412f49c472f3913241d00f830761fd Bisecting: 1056 revisions left to test after this (roughly 10 steps) [22700706adac57608ca78ef527b0df56c11f85e6] Merge branch 'sctp-vrf' testing commit 22700706adac57608ca78ef527b0df56c11f85e6 gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: a58de0207f6fac3fe56d88e5424bf0bcf30c39f29d4605623e481e884bdb9799 all runs: OK # git bisect bad 22700706adac57608ca78ef527b0df56c11f85e6 Bisecting: 538 revisions left to test after this (roughly 9 steps) [69b957440a6379b4ae4bc6eef07bbf5efdeb4233] iavf: Change information about device removal in dmesg testing commit 69b957440a6379b4ae4bc6eef07bbf5efdeb4233 gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: b3afe93c0393b0875df1201900b1b63e05eb3f601b801abaf19b4e5a8383b6b6 all runs: boot failed: WARNING in genl_register_family # git bisect skip 69b957440a6379b4ae4bc6eef07bbf5efdeb4233 Bisecting: 538 revisions left to test after this (roughly 9 steps) [3590918b5d07aa5e4702f753c375adb4868d3abd] net: ethernet: renesas: Add support for "Ethernet Switch" testing commit 3590918b5d07aa5e4702f753c375adb4868d3abd gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 5092e42c686695133596c9750290bf5740a78158aeed86b2cdaf83e2781bb089 all runs: boot failed: WARNING in genl_register_family # git bisect skip 3590918b5d07aa5e4702f753c375adb4868d3abd Bisecting: 538 revisions left to test after this (roughly 9 steps) [392d0ab048273c4d121a431de8fe030421794d9e] net: microchip: sparx5: Adding TC goto action and action checking testing commit 392d0ab048273c4d121a431de8fe030421794d9e gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 15dd093f201f13d7eef90dbc43ea1333e25f6205af9651f3c9a8ee509acbb484 run #0: crashed: possible deadlock in virtual_nci_close run #1: crashed: possible deadlock in nci_start_poll run #2: crashed: possible deadlock in nci_start_poll run #3: crashed: possible deadlock in nci_start_poll run #4: crashed: possible deadlock in nci_start_poll run #5: crashed: possible deadlock in nci_start_poll run #6: crashed: possible deadlock in nci_start_poll run #7: crashed: possible deadlock in nci_start_poll run #8: crashed: possible deadlock in nci_start_poll run #9: crashed: possible deadlock in nci_start_poll # git bisect good 392d0ab048273c4d121a431de8fe030421794d9e Bisecting: 125 revisions left to test after this (roughly 7 steps) [6970ef27ff7fd1ce3455b2c696081503d0c0f8ac] net: fec: add xdp and page pool statistics testing commit 6970ef27ff7fd1ce3455b2c696081503d0c0f8ac gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: f9e0e00d0a54e0a5ec92028e13f157968fa362323ea6dc128ed10f7225663663 all runs: crashed: possible deadlock in nci_start_poll # git bisect good 6970ef27ff7fd1ce3455b2c696081503d0c0f8ac Bisecting: 62 revisions left to test after this (roughly 6 steps) [6af645a5b2da7898b2c37e8f39f1bc572c4ab85a] net: net_{enable|disable}_timestamp() optimizations testing commit 6af645a5b2da7898b2c37e8f39f1bc572c4ab85a gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 9d5628edb8499d067531f584f873f18b2cc79bc9afee05015cbc7ff050e6d7c7 run #0: crashed: possible deadlock in virtual_nci_close run #1: crashed: possible deadlock in virtual_nci_close run #2: crashed: possible deadlock in nci_start_poll run #3: crashed: possible deadlock in nci_start_poll run #4: crashed: possible deadlock in nci_start_poll run #5: crashed: possible deadlock in nci_start_poll run #6: crashed: possible deadlock in nci_start_poll run #7: crashed: possible deadlock in nci_start_poll run #8: crashed: possible deadlock in nci_start_poll run #9: crashed: possible deadlock in nci_start_poll # git bisect good 6af645a5b2da7898b2c37e8f39f1bc572c4ab85a Bisecting: 30 revisions left to test after this (roughly 5 steps) [0184c07a11a243569cb90104980237c8e101f363] net: dsa: autoload tag driver module on tagging protocol change testing commit 0184c07a11a243569cb90104980237c8e101f363 gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 918235854d50ecf68d8db90a05d17a2dbb43e63734a7d5f68e629d4bdaea7c74 all runs: OK # git bisect bad 0184c07a11a243569cb90104980237c8e101f363 Bisecting: 15 revisions left to test after this (roughly 4 steps) [b4b221bd79a1c698d9653e3ae2c3cb61cdc9aee7] net: ethernet: renesas: Fix return type in rswitch_etha_wait_link_verification() testing commit b4b221bd79a1c698d9653e3ae2c3cb61cdc9aee7 gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: f35415cec4aae2c89a9a2258ea23dd60fe580c4210d22df5ed1737ebfb95688f all runs: OK # git bisect bad b4b221bd79a1c698d9653e3ae2c3cb61cdc9aee7 Bisecting: 7 revisions left to test after this (roughly 3 steps) [c4794d22251b979b12a6c8e2d3848b662a44fdb6] ipv4: tunnels: use DEV_STATS_INC() testing commit c4794d22251b979b12a6c8e2d3848b662a44fdb6 gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: dcb5960b07db80500342f7c6134f81ee1a4d4bbd58c0bd60192dab05fcb43532 run #0: crashed: possible deadlock in nci_start_poll run #1: crashed: possible deadlock in virtual_nci_close run #2: crashed: possible deadlock in nci_start_poll run #3: crashed: possible deadlock in nci_start_poll run #4: crashed: possible deadlock in nci_start_poll run #5: crashed: possible deadlock in nci_start_poll run #6: crashed: possible deadlock in nci_start_poll run #7: crashed: possible deadlock in nci_start_poll run #8: crashed: possible deadlock in nci_start_poll run #9: crashed: possible deadlock in nci_start_poll # git bisect good c4794d22251b979b12a6c8e2d3848b662a44fdb6 Bisecting: 3 revisions left to test after this (roughly 2 steps) [d82303df06481235fe7cbaf605075e0c2c87e99b] mlxsw: update adjfine to use adjust_by_scaled_ppm testing commit d82303df06481235fe7cbaf605075e0c2c87e99b gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 4c13f6361171ca592fe58791dc4e5af6cf87ed2841f0bf40493d70ca449ed8a5 all runs: crashed: possible deadlock in nci_start_poll # git bisect good d82303df06481235fe7cbaf605075e0c2c87e99b Bisecting: 1 revision left to test after this (roughly 1 step) [710cfc6ab4b85ac5388828b4be63a5f20c8a9dd9] sundance: remove unused variable cnt testing commit 710cfc6ab4b85ac5388828b4be63a5f20c8a9dd9 gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 857e2f2f96c4990850246e7139c69fc428fd20c24b0acf49353dd93029a71c41 all runs: crashed: possible deadlock in nci_start_poll # git bisect good 710cfc6ab4b85ac5388828b4be63a5f20c8a9dd9 Bisecting: 0 revisions left to test after this (roughly 0 steps) [b2e44aac91b25abbed57d785089c4b7af926a7bd] NFC: nci: Allow to create multiple virtual nci devices testing commit b2e44aac91b25abbed57d785089c4b7af926a7bd gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: ae649cb914956d79fafedeae0fff8d951a6309cc8bd4f644ef9c0d9a832e0aad all runs: OK # git bisect bad b2e44aac91b25abbed57d785089c4b7af926a7bd b2e44aac91b25abbed57d785089c4b7af926a7bd is the first bad commit commit b2e44aac91b25abbed57d785089c4b7af926a7bd Author: Dmitry Vyukov Date: Tue Nov 15 11:00:17 2022 +0100 NFC: nci: Allow to create multiple virtual nci devices The current virtual nci driver is great for testing and fuzzing. But it allows to create at most one "global" device which does not allow to run parallel tests and harms fuzzing isolation and reproducibility. Restructure the driver to allow creation of multiple independent devices. This should be backwards compatible for existing tests. Signed-off-by: Dmitry Vyukov Reviewed-by: Bongsu Jeon Cc: Bongsu Jeon Cc: Krzysztof Kozlowski Cc: Jakub Kicinski Cc: netdev@vger.kernel.org Link: https://lore.kernel.org/r/20221115100017.787929-1-dvyukov@google.com Signed-off-by: Paolo Abeni drivers/nfc/virtual_ncidev.c | 147 +++++++++++++++++++++---------------------- 1 file changed, 71 insertions(+), 76 deletions(-) culprit signature: ae649cb914956d79fafedeae0fff8d951a6309cc8bd4f644ef9c0d9a832e0aad parent signature: 857e2f2f96c4990850246e7139c69fc428fd20c24b0acf49353dd93029a71c41 revisions tested: 18, total time: 5h9m4.105176721s (build: 2h48m58.179406428s, test: 2h16m52.232614287s) first good commit: b2e44aac91b25abbed57d785089c4b7af926a7bd NFC: nci: Allow to create multiple virtual nci devices recipients (to): ["bongsu.jeon@samsung.com" "dvyukov@google.com" "pabeni@redhat.com"] recipients (cc): []