ci starts bisection 2026-07-25 06:19:07.67421347 +0000 UTC m=+1009.282685555
bisecting cause commit starting from 48a5a7ab8d6ab7090564339e039c421f315de912
building syzkaller on 05b26a281c072cc34dcad83a283fd2aeeff18ad1
ensuring issue is reproducible on original commit 48a5a7ab8d6ab7090564339e039c421f315de912

testing commit 48a5a7ab8d6ab7090564339e039c421f315de912 gcc
compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: f28daebdf7937086ee2aead79aae4a9b0cccb86d70a66a025b5a4d82f99f99d9
all runs: crashed: lost connection to test machine
representative crash: lost connection to test machine, types: [LOST_CONNECTION]
check whether we can drop unnecessary instrumentation
disabling configs for [atomic_sleep hang memleak ubsan bug_or_warning kasan locking], they are not needed
testing commit 48a5a7ab8d6ab7090564339e039c421f315de912 gcc
compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 159d069880fba4b3a18de62ca723e5a05b871276aa1a974d73c75234d49e621c
all runs: crashed: lost connection to test machine
representative crash: lost connection to test machine, types: [LOST_CONNECTION]
the bug reproduces without the instrumentation
disabling configs for [locking atomic_sleep hang memleak ubsan bug_or_warning kasan], they are not needed
kconfig minimization: base=4140 full=8594 leaves diff=2147
split chunks (needed=false): <2147>
split chunk #0 of len 2147 into 5 parts
testing without sub-chunk 1/5
disabling configs for [locking atomic_sleep hang memleak ubsan bug_or_warning kasan], they are not needed
testing commit 48a5a7ab8d6ab7090564339e039c421f315de912 gcc
compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: fc283dbe95555d1799a842bb21621f8c7d7be32505e56c5a6ad804de0c536eb8
all runs: crashed: lost connection to test machine
representative crash: lost connection to test machine, types: [LOST_CONNECTION]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [locking atomic_sleep hang memleak ubsan bug_or_warning kasan], they are not needed
testing commit 48a5a7ab8d6ab7090564339e039c421f315de912 gcc
compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 23cea470830aa1d0b54aabafd027832edb6221a1c164eed8ff55cffa6cd9673d
all runs: crashed: lost connection to test machine
representative crash: lost connection to test machine, types: [LOST_CONNECTION]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [ubsan bug_or_warning kasan locking atomic_sleep hang memleak], they are not needed
testing commit 48a5a7ab8d6ab7090564339e039c421f315de912 gcc
compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 863de8687c181e626e34b9fa6b1a68c67204489cd1bce267b7115f5019115e29
all runs: crashed: lost connection to test machine
representative crash: lost connection to test machine, types: [LOST_CONNECTION]
the chunk can be dropped
testing without sub-chunk 4/5
disabling configs for [bug_or_warning kasan locking atomic_sleep hang memleak ubsan], they are not needed
testing commit 48a5a7ab8d6ab7090564339e039c421f315de912 gcc
compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 3c2b1173abd120019971418d2ca6ceec1b2c30a8374ea5f666da3471456498aa
all runs: crashed: lost connection to test machine
representative crash: lost connection to test machine, types: [LOST_CONNECTION]
the chunk can be dropped
testing without sub-chunk 5/5
disabling configs for [memleak ubsan bug_or_warning kasan locking atomic_sleep hang], they are not needed
testing commit 48a5a7ab8d6ab7090564339e039c421f315de912 gcc
compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 2c6439dcf6a6d851dfddd53a0572f19b86fa640a736ed5d822df928f2464ea57
all runs: crashed: lost connection to test machine
representative crash: lost connection to test machine, types: [LOST_CONNECTION]
the chunk can be dropped
disabling configs for [atomic_sleep hang memleak ubsan bug_or_warning kasan locking], they are not needed
picked [v7.1 v7.0 v6.19 v6.17 v6.15 v6.13 v6.11 v6.9 v6.6 v6.3 v6.0 v5.17 v5.14 v5.11 v5.8 v5.5 v5.2 v4.20 v4.19] out of 44 release tags
testing release v7.1
testing commit 8cd9520d35a6c38db6567e97dd93b1f11f185dc6 gcc
compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 09d778bda06f44d19460e0e51eae891e0412e366117a610de229a5e34b7277db
all runs: crashed: lost connection to test machine
representative crash: lost connection to test machine, types: [LOST_CONNECTION]
testing release v7.0
testing commit 028ef9c96e96197026887c0f092424679298aae8 gcc
compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 9b599ff0b6aea2957b127c5568c2aa380c4b6b7633c36c5fa372765defbbdb60
all runs: crashed: lost connection to test machine
representative crash: lost connection to test machine, types: [LOST_CONNECTION]
testing release v6.19
testing commit 05f7e89ab9731565d8a62e3b5d1ec206485eeb0b gcc
compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: dfe710f1bc85141e4100a1a60cbf34f688545c75d24e4573c41159208e454444
all runs: crashed: lost connection to test machine
representative crash: lost connection to test machine, types: [LOST_CONNECTION]
testing release v6.17
testing commit e5f0a698b34ed76002dc5cff3804a61c80233a7a gcc
compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 3826e99736928224f69e54534b9010eed03d2d579a646004726da2eba5e07e9a
all runs: crashed: lost connection to test machine
representative crash: lost connection to test machine, types: [LOST_CONNECTION]
testing release v6.15
testing commit 0ff41df1cb268fc69e703a08a57ee14ae967d0ca gcc
compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 870b004fc0fbc02ef4750659630a7a586e5d517a79dcfda693b5a3ae16bdf737
all runs: crashed: lost connection to test machine
representative crash: lost connection to test machine, types: [LOST_CONNECTION]
testing release v6.13
testing commit ffd294d346d185b70e28b1a28abe367bbfe53c04 gcc
compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 87bd1502090fa75d1ae9757b74b85096fb9b49100060091f7ccc3ce0420ccc05
all runs: crashed: lost connection to test machine
representative crash: lost connection to test machine, types: [LOST_CONNECTION]
testing release v6.11
testing commit 98f7e32f20d28ec452afb208f9cffc08448a2652 gcc
compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: ecf426e315104b513cd8a0454b6379dddec01d4d835efbee9eef7b19519fc38a
all runs: crashed: lost connection to test machine
representative crash: lost connection to test machine, types: [LOST_CONNECTION]
testing release v6.9
testing commit a38297e3fb012ddfa7ce0321a7e5a8daeb1872b6 gcc
compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 09e44bc762d980ca8c4a7b9067bc918ae55c487d581a03dca18cca525005f594
all runs: crashed: lost connection to test machine
representative crash: lost connection to test machine, types: [LOST_CONNECTION]
testing release v6.6
testing commit ffc253263a1375a65fa6c9f62a893e9767fbebfa gcc
compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: b1136e00fc78f8f466c95b02e8d6f6084b66394d0bb1290494b714297d68292b
all runs: crashed: lost connection to test machine
representative crash: lost connection to test machine, types: [LOST_CONNECTION]
testing release v6.3
testing commit 457391b0380335d5e9a5babdec90ac53928b23b4 gcc
compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 6e0189d402742a5d6f3f45138df106816421fb8fd0e4bed334720e795cc63e02
all runs: crashed: lost connection to test machine
representative crash: lost connection to test machine, types: [LOST_CONNECTION]
testing release v6.0
testing commit 4fe89d07dcc2804c8b562f6c7896a45643d34b2f gcc
compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 72739e4b57cdb71ef8e290319de2d5088ca370e26f57086efe29e335aa236374
all runs: crashed: lost connection to test machine
representative crash: lost connection to test machine, types: [LOST_CONNECTION]
testing release v5.17
testing commit f443e374ae131c168a065ea1748feac6b2e76613 gcc
compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 8e09df1247ccf163b13f87756d3e033c571d837a007852c0a5e5edd88dca35ee
all runs: crashed: lost connection to test machine
representative crash: lost connection to test machine, types: [LOST_CONNECTION]
testing release v5.14
testing commit 7d2a07b769330c34b4deabeed939325c77a7ec2f gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: d8055a961240ea0220be6dc9cd30ee2016ced17ee51c62a5095d6dad4539b35b
all runs: boot failed: invalid opcode in public_key_verify_signature
unable to determine the verdict: 0 good runs (wanted 5), for bad wanted 5 in total, got 0
testing release v5.11
testing commit f40ddce88593482919761f74910f42f4b84c004b gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: b10e44ebe06132c2c5966b04b9781a1273bb6d6e2031833acd463c99940adaf5
all runs: boot failed: invalid opcode in public_key_verify_signature
unable to determine the verdict: 0 good runs (wanted 5), for bad wanted 5 in total, got 0
testing release v5.8
testing commit bcf876870b95592b52519ed4aafcf9d95999bc9c gcc
compiler: gcc (GCC) 8.4.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 856ca5a7350b8bc9394189075e00c3c8eb4ceac90d59c7d07bf737ae05e17689
all runs: boot failed: invalid opcode in public_key_verify_signature
unable to determine the verdict: 0 good runs (wanted 5), for bad wanted 5 in total, got 0
testing release v5.5
testing commit d5226fa6dbae0569ee43ecfc08bdcd6770fc4755 gcc
compiler: gcc (GCC) 8.4.1 20210217
failed building d5226fa6dbae0569ee43ecfc08bdcd6770fc4755: scripts/extract-cert.c:46:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/extract-cert.c:59:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/sign-file.c:89:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/sign-file.c:102:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
tools/include/linux/string.h:20:15: error: redundant redeclaration of 'strlcpy' [-Werror=redundant-decls]
testing release v5.2
testing commit 0ecfebd2b52404ae0c54a878c872bb93363ada36 gcc
compiler: gcc (GCC) 8.4.1 20210217
failed building 0ecfebd2b52404ae0c54a878c872bb93363ada36: scripts/extract-cert.c:46:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/extract-cert.c:59:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/sign-file.c:89:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/sign-file.c:102:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
tools/include/linux/string.h:17:15: error: redundant redeclaration of 'strlcpy' [-Werror=redundant-decls]
testing release v4.20
testing commit 8fe28cb58bcb235034b64cbbb7550a8a43fd88be gcc
compiler: gcc (GCC) 8.4.1 20210217
failed building 8fe28cb58bcb235034b64cbbb7550a8a43fd88be: ./security/selinux/include/classmap.h:249:2: error: #error New address family defined, please update secclass_map.
tools/include/linux/string.h:17:15: error: redundant redeclaration of 'strlcpy' [-Werror=redundant-decls]
scripts/extract-cert.c:46:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/extract-cert.c:59:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/sign-file.c:89:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
scripts/sign-file.c:102:9: warning: 'ERR_get_error_line' is deprecated: Since OpenSSL 3.0 [-Wdeprecated-declarations]
testing release v4.19
revisions tested: 22, total time: 13h15m39.16072465s (build: 5h28m19.05188127s, test: 1h51m31.835424474s)
error: bisection is taking too long (>12h0m0s), aborting