ci2 starts bisection 2025-09-25 16:01:01.762353933 +0000 UTC m=+127427.417217619 bisecting fixing commit since eabcdba3ad4098460a376538df2ae36500223c1e building syzkaller on 1432fc84530255f6208c5719be796918244fa9d3 ensuring issue is reproducible on original commit eabcdba3ad4098460a376538df2ae36500223c1e testing commit eabcdba3ad4098460a376538df2ae36500223c1e gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 3fc3966b8d588929652a523f2951e75cd3976d26f64a41640a8433a4a2671c95 run #0: crashed: general protection fault in put_pwq_unlocked run #1: crashed: WARNING: locking bug in rcu_pending_exit run #2: crashed: KASAN: global-out-of-bounds Read in rcu_pending_exit run #3: crashed: general protection fault in put_pwq_unlocked run #4: crashed: WARNING: locking bug in rcu_pending_exit run #5: crashed: WARNING: locking bug in rcu_pending_exit run #6: crashed: WARNING: locking bug in rcu_pending_exit run #7: crashed: WARNING: locking bug in rcu_pending_pcpu_dequeue run #8: crashed: WARNING: locking bug in rcu_pending_pcpu_dequeue run #9: crashed: WARNING: locking bug in rcu_pending_exit run #10: crashed: WARNING: locking bug in rcu_pending_exit run #11: crashed: INFO: task hung in synchronize_rcu run #12: crashed: WARNING: locking bug in rcu_pending_exit run #13: crashed: WARNING: locking bug in rcu_pending_exit run #14: crashed: WARNING: locking bug in rcu_pending_exit run #15: crashed: general protection fault in put_pwq_unlocked run #16: OK run #17: OK run #18: OK run #19: OK representative crash: WARNING: locking bug in rcu_pending_exit, types: [LOCKDEP DoS] check whether we can drop unnecessary instrumentation disabling configs for [hang memleak ubsan bug_or_warning kasan atomic_sleep], they are not needed testing commit eabcdba3ad4098460a376538df2ae36500223c1e gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 0e6a0831a80592fb1fc8f0baace90dfebace47075a698e15464aaf7f7a7f4059 run #0: crashed: BUG: unable to handle kernel paging request in rcu_segcblist_advance run #1: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor2569106536" "root@10.128.0.245:./syz-executor2569106536"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.0.245, user root, command sftp OpenSSH_9.2p1 Debian-2+deb12u7, OpenSSL 3.0.17 1 Jul 2025 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.0.245 [10.128.0.245] port 22. debug1: connect to address 10.128.0.245 port 22: Connection timed out ssh: connect to host 10.128.0.245 port 22: Connection timed out scp: Connection closed run #2: crashed: BUG: unable to handle kernel NULL pointer dereference in __fib6_drop_pcpu_from run #3: crashed: BUG: unable to handle kernel NULL pointer dereference in __fib6_drop_pcpu_from run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK representative crash: BUG: unable to handle kernel NULL pointer dereference in __fib6_drop_pcpu_from, types: [NULL-POINTER-DEREFERENCE MEMORY_SAFETY_BUG] the bug reproduces without the instrumentation disabling configs for [atomic_sleep hang memleak ubsan bug_or_warning kasan], they are not needed kconfig minimization: base=4092 full=8236 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 [atomic_sleep hang memleak ubsan bug_or_warning kasan], they are not needed testing commit eabcdba3ad4098460a376538df2ae36500223c1e gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 9e7c41d0b5419b1d66db765811b550318209f030f514c4606e6f7b4481982970 all runs: OK false negative chance: 0.000 testing without sub-chunk 2/5 disabling configs for [memleak ubsan bug_or_warning kasan atomic_sleep hang], they are not needed testing commit eabcdba3ad4098460a376538df2ae36500223c1e gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 2b7c0aa62b92d73643e84d730de6f9e2f6512b9cd2a789c82e92d7d1dd5bf709 run #0: crashed: general protection fault in bch2_fs_journal_exit run #1: crashed: BUG: unable to handle kernel NULL pointer dereference in bch2_fs_btree_iter_exit run #2: crashed: BUG: unable to handle kernel paging request in process_srcu run #3: crashed: BUG: unable to handle kernel NULL pointer dereference in srcu_gp_start_if_needed run #4: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor4140625558" "root@10.128.0.156:./syz-executor4140625558"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.0.156, user root, command sftp OpenSSH_9.2p1 Debian-2+deb12u7, OpenSSL 3.0.17 1 Jul 2025 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.0.156 [10.128.0.156] port 22. debug1: fd 3 clearing O_NONBLOCK debug1: Connection established. debug1: identity file /root/.ssh/id_rsa type -1 debug1: identity file /root/.ssh/id_rsa-cert type -1 debug1: identity file /root/.ssh/id_ecdsa type -1 debug1: identity file /root/.ssh/id_ecdsa-cert type -1 debug1: identity file /root/.ssh/id_ecdsa_sk type -1 debug1: identity file /root/.ssh/id_ecdsa_sk-cert type -1 debug1: identity file /root/.ssh/id_ed25519 type -1 debug1: identity file /root/.ssh/id_ed25519-cert type -1 debug1: identity file /root/.ssh/id_ed25519_sk type -1 debug1: identity file /root/.ssh/id_ed25519_sk-cert type -1 debug1: identity file /root/.ssh/id_xmss type -1 debug1: identity file /root/.ssh/id_xmss-cert type -1 debug1: identity file /root/.ssh/id_dsa type -1 debug1: identity file /root/.ssh/id_dsa-cert type -1 debug1: Local version string SSH-2.0-OpenSSH_9.2p1 Debian-2+deb12u7 Connection timed out during banner exchange Connection to 10.128.0.156 port 22 timed out scp: Connection closed run #5: crashed: BUG: unable to handle kernel NULL pointer dereference in __fib6_drop_pcpu_from run #6: crashed: BUG: Bad rss-counter state run #7: crashed: BUG: Bad rss-counter state run #8: crashed: BUG: unable to handle kernel paging request in bch2_fs_btree_iter_exit run #9: OK run #10: OK run #11: OK run #12: OK run #13: crashed: BUG: unable to handle kernel paging request in process_srcu run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: BUG: unable to handle kernel NULL pointer dereference in bch2_fs_btree_iter_exit, types: [NULL-POINTER-DEREFERENCE MEMORY_SAFETY_BUG UNKNOWN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [kasan atomic_sleep hang memleak ubsan bug_or_warning], they are not needed testing commit eabcdba3ad4098460a376538df2ae36500223c1e gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 059882a0ba682c2e30e859a4df4b81e64ae32bef8e6a5970a3b61553a32cac04 run #0: crashed: BUG: unable to handle kernel paging request in process_srcu run #1: crashed: BUG: unable to handle kernel NULL pointer dereference in rcu_pending_pcpu_dequeue run #2: crashed: BUG: Bad rss-counter state run #3: crashed: general protection fault in bch2_fs_journal_exit run #4: crashed: BUG: unable to handle kernel paging request in bch2_fs_btree_iter_exit run #5: crashed: no output from test machine run #6: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor4188837551" "root@10.128.1.246:./syz-executor4188837551"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.1.246, user root, command sftp OpenSSH_9.2p1 Debian-2+deb12u7, OpenSSL 3.0.17 1 Jul 2025 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.1.246 [10.128.1.246] port 22. debug1: fd 3 clearing O_NONBLOCK debug1: Connection established. debug1: identity file /root/.ssh/id_rsa type -1 debug1: identity file /root/.ssh/id_rsa-cert type -1 debug1: identity file /root/.ssh/id_ecdsa type -1 debug1: identity file /root/.ssh/id_ecdsa-cert type -1 debug1: identity file /root/.ssh/id_ecdsa_sk type -1 debug1: identity file /root/.ssh/id_ecdsa_sk-cert type -1 debug1: identity file /root/.ssh/id_ed25519 type -1 debug1: identity file /root/.ssh/id_ed25519-cert type -1 debug1: identity file /root/.ssh/id_ed25519_sk type -1 debug1: identity file /root/.ssh/id_ed25519_sk-cert type -1 debug1: identity file /root/.ssh/id_xmss type -1 debug1: identity file /root/.ssh/id_xmss-cert type -1 debug1: identity file /root/.ssh/id_dsa type -1 debug1: identity file /root/.ssh/id_dsa-cert type -1 debug1: Local version string SSH-2.0-OpenSSH_9.2p1 Debian-2+deb12u7 Connection timed out during banner exchange Connection to 10.128.1.246 port 22 timed out scp: Connection closed run #7: crashed: BUG: unable to handle kernel NULL pointer dereference in dst_dev_put run #8: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor3978424481" "root@10.128.10.19:./syz-executor3978424481"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.10.19, user root, command sftp OpenSSH_9.2p1 Debian-2+deb12u7, OpenSSL 3.0.17 1 Jul 2025 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.10.19 [10.128.10.19] port 22. debug1: connect to address 10.128.10.19 port 22: Connection timed out ssh: connect to host 10.128.10.19 port 22: Connection timed out scp: Connection closed run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: BUG: unable to handle kernel paging request in process_srcu, types: [MEMORY_SAFETY_BUG NULL-POINTER-DEREFERENCE UNKNOWN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [ubsan bug_or_warning kasan atomic_sleep hang memleak], they are not needed testing commit eabcdba3ad4098460a376538df2ae36500223c1e gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 2e40a8deb66253a889c5f16f00a33edf859b7fc9c2812e5982ff5a9e4202dbc4 run #0: crashed: BUG: unable to handle kernel paging request in bch2_fs_btree_iter_exit run #1: crashed: general protection fault in bch2_fs_btree_interior_update_exit run #2: crashed: BUG: unable to handle kernel paging request in bch2_fs_btree_iter_exit run #3: crashed: BUG: unable to handle kernel paging request in process_srcu run #4: crashed: BUG: workqueue lockup run #5: crashed: BUG: workqueue lockup run #6: crashed: BUG: unable to handle kernel NULL pointer dereference in detach_if_pending run #7: crashed: BUG: unable to handle kernel paging request in process_srcu run #8: crashed: BUG: workqueue lockup run #9: crashed: BUG: unable to handle kernel NULL pointer dereference in dst_dev_put run #10: crashed: BUG: workqueue lockup run #11: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor2914717860" "root@10.128.10.7:./syz-executor2914717860"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.10.7, user root, command sftp OpenSSH_9.2p1 Debian-2+deb12u7, OpenSSL 3.0.17 1 Jul 2025 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.10.7 [10.128.10.7] port 22. debug1: fd 3 clearing O_NONBLOCK debug1: Connection established. debug1: identity file /root/.ssh/id_rsa type -1 debug1: identity file /root/.ssh/id_rsa-cert type -1 debug1: identity file /root/.ssh/id_ecdsa type -1 debug1: identity file /root/.ssh/id_ecdsa-cert type -1 debug1: identity file /root/.ssh/id_ecdsa_sk type -1 debug1: identity file /root/.ssh/id_ecdsa_sk-cert type -1 debug1: identity file /root/.ssh/id_ed25519 type -1 debug1: identity file /root/.ssh/id_ed25519-cert type -1 debug1: identity file /root/.ssh/id_ed25519_sk type -1 debug1: identity file /root/.ssh/id_ed25519_sk-cert type -1 debug1: identity file /root/.ssh/id_xmss type -1 debug1: identity file /root/.ssh/id_xmss-cert type -1 debug1: identity file /root/.ssh/id_dsa type -1 debug1: identity file /root/.ssh/id_dsa-cert type -1 debug1: Local version string SSH-2.0-OpenSSH_9.2p1 Debian-2+deb12u7 Connection timed out during banner exchange Connection to 10.128.10.7 port 22 timed out scp: Connection closed run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: BUG: unable to handle kernel paging request in bch2_fs_btree_iter_exit, types: [MEMORY_SAFETY_BUG UNKNOWN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [ubsan bug_or_warning kasan atomic_sleep hang memleak], they are not needed testing commit eabcdba3ad4098460a376538df2ae36500223c1e gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 34f659be4983de0b19bac60c48acdda7a1e2ebce0fb088ca6a327a4059ccba3d run #0: crashed: general protection fault in bch2_fs_release run #1: crashed: general protection fault in bch2_fs_release run #2: crashed: general protection fault in bch2_fs_release run #3: crashed: BUG: unable to handle kernel NULL pointer dereference in rcu_pending_pcpu_dequeue run #4: crashed: BUG: unable to handle kernel NULL pointer dereference in bch2_fs_btree_iter_exit run #5: crashed: BUG: unable to handle kernel NULL pointer dereference in bch2_fs_btree_iter_exit run #6: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor1194661388" "root@10.128.10.22:./syz-executor1194661388"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.10.22, user root, command sftp OpenSSH_9.2p1 Debian-2+deb12u7, OpenSSL 3.0.17 1 Jul 2025 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.10.22 [10.128.10.22] port 22. debug1: connect to address 10.128.10.22 port 22: Connection timed out ssh: connect to host 10.128.10.22 port 22: Connection timed out scp: Connection closed run #7: crashed: BUG: workqueue lockup run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: crashed: BUG: workqueue lockup run #18: OK run #19: OK representative crash: general protection fault in bch2_fs_release, types: [DoS NULL-POINTER-DEREFERENCE] the chunk can be dropped minimized to 430 configs; suspects: [6LOWPAN 6LOWPAN_GHC_EXT_HDR_DEST 6LOWPAN_GHC_EXT_HDR_FRAG 6LOWPAN_GHC_EXT_HDR_HOP 6LOWPAN_GHC_EXT_HDR_ROUTE 6LOWPAN_GHC_ICMPV6 6LOWPAN_GHC_UDP 6LOWPAN_NHC 6LOWPAN_NHC_DEST 6LOWPAN_NHC_FRAGMENT 6LOWPAN_NHC_HOP 6LOWPAN_NHC_IPV6 6LOWPAN_NHC_MOBILITY 6LOWPAN_NHC_ROUTING 6LOWPAN_NHC_UDP 6PACK 842_COMPRESS 842_DECOMPRESS 9P_FSCACHE 9P_FS_POSIX_ACL 9P_FS_SECURITY ACORN_PARTITION ACORN_PARTITION_ADFS ACORN_PARTITION_CUMANA ACORN_PARTITION_EESOX ACORN_PARTITION_ICS ACORN_PARTITION_POWERTEC ACORN_PARTITION_RISCIX ACPI_NFIT ACPI_NHLT ACPI_PLATFORM_PROFILE ADFS_FS AFFS_FS AFS_FS AFS_FSCACHE AF_KCM AF_RXRPC AF_RXRPC_IPV6 AIX_PARTITION AMD_SFH_HID AMIGA_PARTITION ANDROID_BINDERFS ANDROID_BINDER_IPC ANON_VMA_NAME APERTURE_HELPERS APPLE_MFI_FASTCHARGE AR5523 ARCH_ENABLE_MEMORY_HOTREMOVE ARCH_ENABLE_THP_MIGRATION ARCH_HAS_USER_SHADOW_STACK ARCH_SUPPORTS_HUGE_PFNMAP ARCH_SUPPORTS_PMD_PFNMAP ARCH_SUPPORTS_PUD_PFNMAP ARCH_WANT_PMD_MKWRITE ASM_MODVERSIONS ASUS_TF103C_DOCK ASYNC_CORE ASYNC_MEMCPY ASYNC_PQ ASYNC_RAID6_RECOV ASYNC_TX_DMA ASYNC_XOR AS_SHA1_NI AS_SHA256_NI AS_TPAUSE ATARI_PARTITION ATA_GENERIC ATA_OVER_ETH ATH10K ATH10K_CE ATH10K_LEDS ATH10K_PCI ATH10K_USB ATH11K ATH6KL ATH6KL_USB ATH9K ATH9K_AHB ATH9K_BTCOEX_SUPPORT ATH9K_CHANNEL_CONTEXT ATH9K_COMMON ATH9K_COMMON_DEBUG ATH9K_COMMON_SPECTRAL ATH9K_DEBUGFS ATH9K_DYNACK ATH9K_HTC ATH9K_HTC_DEBUGFS ATH9K_HW ATH9K_PCI ATH9K_PCOEM ATH9K_RFKILL ATH_COMMON ATM ATM_BR2684 ATM_CLIP ATM_DRIVERS ATM_LANE ATM_MPOA ATM_TCP AUXILIARY_BUS AX25 AX25_DAMA_SLAVE AX88796B_PHY BAREUDP BATMAN_ADV BATMAN_ADV_BATMAN_V BATMAN_ADV_BLA BATMAN_ADV_DAT BATMAN_ADV_MCAST BATMAN_ADV_NC BCACHE BCACHEFS_DEBUG BCACHEFS_ERASURE_CODING BCACHEFS_FS BCACHEFS_POSIX_ACL BCACHEFS_QUOTA BCACHEFS_SIX_OPTIMISTIC_SPIN BCMA BCMA_HOST_PCI_POSSIBLE BEFS_FS BFQ_CGROUP_DEBUG BFQ_GROUP_IOSCHED BFS_FS BIG_KEYS BLK_CGROUP_PUNT_BIO BLK_CGROUP_RWSTAT BLK_DEV_BSGLIB BLK_DEV_INTEGRITY BLK_DEV_NBD BLK_DEV_NULL_BLK BLK_DEV_NULL_BLK_FAULT_INJECTION BLK_DEV_NVME BLK_DEV_PMEM BLK_DEV_RAM BLK_DEV_RNBD BLK_DEV_RNBD_CLIENT BLK_DEV_THROTTLING BLK_DEV_ZONED BLK_ICQ BLK_INLINE_ENCRYPTION BLK_INLINE_ENCRYPTION_FALLBACK BLK_MQ_PCI BLK_MQ_VIRTIO BLK_WBT BLK_WBT_MQ BONDING BOOT_VESA_SUPPORT BPF_EVENTS BPF_JIT BPF_JIT_ALWAYS_ON BPF_JIT_DEFAULT_ON BPF_LSM BPF_PRELOAD BPF_PRELOAD_UMD BPF_STREAM_PARSER BPF_SYSCALL BPQETHER BRIDGE BRIDGE_CFM BRIDGE_EBT_802_3 BRIDGE_EBT_AMONG BRIDGE_EBT_ARP BRIDGE_EBT_ARPREPLY BRIDGE_EBT_BROUTE BRIDGE_EBT_DNAT BRIDGE_EBT_IP BRIDGE_EBT_IP6 BRIDGE_EBT_LIMIT BRIDGE_EBT_LOG BRIDGE_EBT_MARK BRIDGE_EBT_MARK_T BRIDGE_EBT_NFLOG BRIDGE_EBT_PKTTYPE BRIDGE_EBT_REDIRECT BRIDGE_EBT_SNAT BRIDGE_EBT_STP BRIDGE_EBT_T_FILTER BRIDGE_EBT_T_NAT BRIDGE_EBT_VLAN BRIDGE_IGMP_SNOOPING BRIDGE_MRP BRIDGE_NF_EBTABLES BRIDGE_NF_EBTABLES_LEGACY BRIDGE_VLAN_FILTERING BSD_DISKLABEL BSD_PROCESS_ACCT_V3 BT BTRFS_ASSERT BTRFS_FS BTRFS_FS_POSIX_ACL BTRFS_FS_REF_VERIFY BTT BT_6LOWPAN BT_ATH3K BT_BCM BT_BNEP BT_BNEP_MC_FILTER BT_BNEP_PROTO_FILTER BT_BREDR BT_HCIBCM203X BT_HCIBFUSB BT_HCIBPA10X BT_HCIBTUSB BT_HCIBTUSB_AUTOSUSPEND BT_HCIBTUSB_BCM BT_HCIBTUSB_MTK BT_HCIBTUSB_POLL_SYNC BT_HCIBTUSB_RTL BT_HCIUART BT_HCIUART_3WIRE BT_HCIUART_AG6XX BT_HCIUART_BCSP BT_HCIUART_H4 BT_HCIUART_LL BT_HCIUART_MRVL BT_HCIUART_QCA BT_HCIUART_SERDEV BT_HCIVHCI BT_INTEL BT_LE BT_LEDS BT_LE_L2CAP_ECRED BT_MRVL BT_MRVL_SDIO BT_MSFTEXT BT_MTK BT_MTKSDIO BT_MTKUART BT_QCA BT_RFCOMM BT_RFCOMM_TTY BT_RTL CACHEFILES CAIF CAIF_DEBUG CAIF_DRIVERS CAIF_NETDEV CAIF_TTY CAIF_USB CAIF_VIRTIO CAN CAN_8DEV_USB CAN_BCM CAN_CALC_BITTIMING CAN_DEV CAN_EMS_USB CAN_ESD_USB CAN_ETAS_ES58X CAN_F81604 CAN_GS_USB CAN_GW CAN_IFI_CANFD CAN_ISOTP CAN_J1939 CAN_KVASER_USB CAN_MCBA_USB CAN_NETLINK CAN_PEAK_USB CAN_RAW CAN_RX_OFFLOAD CAN_SLCAN CAN_UCAN CAN_VCAN CAN_VXCAN CARL9170 CARL9170_HWRNG CARL9170_LEDS CARL9170_WPC CC_CAN_LINK_STATIC CC_HAS_AUTO_VAR_INIT_ZERO_ENABLER CC_HAS_SANE_STACKPROTECTOR CEC_CORE CEPH_FS CEPH_FSCACHE CEPH_FS_POSIX_ACL CEPH_LIB CEPH_LIB_USE_DNS_RESOLVER CFG80211 CFG80211_CRDA_SUPPORT CFG80211_DEBUGFS CFG80211_DEFAULT_PS CFG80211_REQUIRE_SIGNED_REGDB CFG80211_USE_KERNEL_REGDB_KEYS CFG80211_WEXT CFS_BANDWIDTH CGROUP_BPF CHARGER_ISP1704 CHR_DEV_ST CIFS CIFS_ALLOW_INSECURE_LEGACY CIFS_DEBUG CIFS_DFS_UPCALL CIFS_FSCACHE CIFS_POSIX CIFS_SMB_DIRECT CIFS_SWN_UPCALL CIFS_UPCALL CIFS_XATTR CLOSURES CLS_U32_MARK CLS_U32_PERF CMA CMA_SIZE_SEL_MAX CMDLINE_PARTITION COMEDI COMEDI_DT9812 COMEDI_NI_USB6501 COMEDI_USBDUX COMEDI_USBDUXFAST COMEDI_USBDUXSIGMA COMEDI_USB_DRIVERS COMEDI_VMK80XX COMPAT_NETLINK_MESSAGES COUNTER CRAMFS CRAMFS_BLOCKDEV CRAMFS_MTD CRC32_SLICEBY8 CRC4 CRC64 CRC64_ROCKSOFT CRC7 CRC8 CRC_ITU_T CRC_T10DIF CRYPTO_842 CRYPTO_ADIANTUM CRYPTO_AEGIS128 CRYPTO_AEGIS128_AESNI_SSE2 CRYPTO_AES_NI_INTEL CRYPTO_AES_TI CRYPTO_ANSI_CPRNG CRYPTO_ANUBIS CRYPTO_ARC4 CRYPTO_ARCH_HAVE_LIB_BLAKE2S CRYPTO_ARCH_HAVE_LIB_CHACHA CRYPTO_ARCH_HAVE_LIB_CURVE25519 CRYPTO_ARCH_HAVE_LIB_POLY1305 CRYPTO_ARIA CRYPTO_ARIA_AESNI_AVX_X86_64 CRYPTO_BLAKE2B CRYPTO_BLAKE2S_X86 CRYPTO_BLOWFISH CRYPTO_BLOWFISH_COMMON CRYPTO_BLOWFISH_X86_64 CRYPTO_CAMELLIA CRYPTO_CAMELLIA_AESNI_AVX2_X86_64 CRYPTO_CAMELLIA_AESNI_AVX_X86_64 CRYPTO_CAMELLIA_X86_64 CRYPTO_CAST5 CRYPTO_CAST5_AVX_X86_64 CRYPTO_CAST6 CRYPTO_CAST6_AVX_X86_64 CRYPTO_CAST_COMMON CRYPTO_CHACHA20 CRYPTO_CHACHA20POLY1305 CRYPTO_CHACHA20_X86_64 CRYPTO_CRC32 CRYPTO_CRC32C CRYPTO_CRC32C_INTEL CRYPTO_CRC32_PCLMUL CRYPTO_CRC64_ROCKSOFT CRYPTO_CRCT10DIF CRYPTO_CRCT10DIF_PCLMUL CRYPTO_CRYPTD CRYPTO_CURVE25519 CRYPTO_CURVE25519_X86 CRYPTO_DEFLATE CRYPTO_DES CRYPTO_DES3_EDE_X86_64 CRYPTO_DEV_CCP CRYPTO_DEV_CCP_DD CRYPTO_DEV_PADLOCK CRYPTO_DEV_PADLOCK_AES CRYPTO_DEV_PADLOCK_SHA CRYPTO_DEV_QAT CRYPTO_DEV_QAT_C3XXX CRYPTO_DEV_QAT_C3XXXVF CRYPTO_DEV_QAT_C62X CRYPTO_DEV_QAT_C62XVF CRYPTO_DEV_QAT_DH895xCC CRYPTO_DEV_QAT_DH895xCCVF CRYPTO_DEV_VIRTIO CRYPTO_DH CRYPTO_DRBG_CTR CRYPTO_DRBG_HASH CRYPTO_ECDH CRYPTO_ECRDSA CRYPTO_ENGINE CRYPTO_ESSIV CRYPTO_FCRYPT CRYPTO_GHASH_CLMUL_NI_INTEL CRYPTO_HCTR2 CRYPTO_KDF800108_CTR CRYPTO_KEYWRAP CRYPTO_KHAZAD CRYPTO_KPP CRYPTO_LIB_ARC4 CRYPTO_LIB_CHACHA CRYPTO_LIB_CHACHA20POLY1305 CRYPTO_LIB_CHACHA_GENERIC CRYPTO_LIB_CURVE25519 CRYPTO_LIB_CURVE25519_GENERIC CRYPTO_LIB_DES CRYPTO_LIB_POLY1305 CRYPTO_LIB_POLY1305_GENERIC CRYPTO_LRW CRYPTO_LZ4 CRYPTO_LZ4HC CRYPTO_MANAGER_DISABLE_TESTS CRYPTO_MICHAEL_MIC CRYPTO_NHPOLY1305 CRYPTO_NHPOLY1305_AVX2 CRYPTO_NHPOLY1305_SSE2 CRYPTO_NULL CRYPTO_NULL2 CRYPTO_PCBC CRYPTO_PCRYPT CRYPTO_POLY1305 CRYPTO_POLY1305_X86_64 CRYPTO_POLYVAL CRYPTO_POLYVAL_CLMUL_NI CRYPTO_RMD160 CRYPTO_SEED CRYPTO_SERPENT CRYPTO_SERPENT_AVX2_X86_64 CRYPTO_SERPENT_AVX_X86_64 CRYPTO_SERPENT_SSE2_X86_64 CRYPTO_SHA1_SSSE3 CRYPTO_SHA256_SSSE3 CRYPTO_SHA512_SSSE3 CRYPTO_SIMD CRYPTO_SM3 CRYPTO_SM3_AVX_X86_64 CRYPTO_SM4 CRYPTO_SM4_AESNI_AVX2_X86_64 CRYPTO_SM4_AESNI_AVX_X86_64 CRYPTO_SM4_GENERIC CRYPTO_STREEBOG CRYPTO_TEA CRYPTO_TWOFISH CRYPTO_TWOFISH_AVX_X86_64 CRYPTO_TWOFISH_COMMON CRYPTO_TWOFISH_X86_64 CRYPTO_TWOFISH_X86_64_3WAY CRYPTO_USER CRYPTO_USER_API CRYPTO_USER_API_AEAD CRYPTO_USER_API_ENABLE_OBSOLETE CRYPTO_USER_API_HASH CRYPTO_USER_API_RNG CRYPTO_USER_API_SKCIPHER CRYPTO_VMAC CRYPTO_WP512 CRYPTO_XCBC CRYPTO_XCTR CRYPTO_XTS CRYPTO_XXHASH CRYPTO_ZSTD CUSE CYPRESS_FIRMWARE DAMON DAMON_PADDR DAMON_RECLAIM DAMON_VADDR DAX DCA DCB DEFAULT_CODEL DEVICE_MIGRATION DEVICE_PRIVATE DEV_COREDUMP DEV_DAX DLN2_ADC DMABUF_HEAPS DMABUF_HEAPS_CMA DMABUF_HEAPS_SYSTEM DMABUF_MOVE_NOTIFY DMA_CMA DMA_ENGINE_RAID DM_AUDIT DM_BIO_PRISON DM_BUFIO DM_CACHE DM_CACHE_SMQ DM_CLONE DM_CRYPT DM_FLAKEY DM_INTEGRITY DM_MULTIPATH DM_MULTIPATH_QL DM_MULTIPATH_ST DM_PERSISTENT_DATA DM_RAID DM_SNAPSHOT DM_THIN_PROVISIONING DM_UEVENT DM_VERITY DM_VERITY_FEC DM_WRITECACHE DM_ZONED DRAGONRISE_FF DRM DRM_AUX_BRIDGE DRM_BOCHS DRM_BRIDGE DRM_BUDDY DRM_CIRRUS_QEMU DRM_CLIENT DRM_CLIENT_LIB DRM_CLIENT_SELECTION DRM_CLIENT_SETUP DRM_DEBUG_MM ENCRYPTED_KEYS FSCACHE FUSE_FS GPIOLIB HAMRADIO HID_DRAGONRISE IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_RTRS_CLIENT IOSCHED_BFQ LIBNVDIMM MAC80211 MAC80211_DEBUGFS MAC80211_LEDS MCORE2 MEDIA_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 MMC MTD NET_CLS_U32 NET_SCH_DEFAULT PARTITION_ADVANCED RFKILL SERIAL_DEV_BUS TLS TLS_DEVICE TRANSPARENT_HUGEPAGE TRUSTED_KEYS USB_GADGET USB_PHY VLAN_8021Q WANT_COMPAT_NETLINK_MESSAGES WEXT_CORE WIRELESS WLAN WLAN_VENDOR_ATH X86_X32_ABI ZONE_DEVICE] disabling configs for [hang memleak ubsan bug_or_warning kasan atomic_sleep], they are not needed testing current HEAD bf40f4b87761e2ec16efc8e49b9ca0d81f4115d8 testing commit bf40f4b87761e2ec16efc8e49b9ca0d81f4115d8 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 740160fe0fa6a9afa408c5f99f9f567b5ced96238a17ccfae85c5e00e7070d10 run #0: crashed: general protection fault in rcu_cblist_dequeue run #1: crashed: BUG: unable to handle kernel paging request in rcu_segcblist_advance run #2: crashed: BUG: unable to handle kernel paging request in rcu_segcblist_advance run #3: crashed: BUG: unable to handle kernel paging request in rcu_segcblist_advance run #4: crashed: BUG: unable to handle kernel paging request in rcu_segcblist_advance run #5: crashed: general protection fault in rcu_cblist_dequeue run #6: crashed: BUG: unable to handle kernel NULL pointer dereference in srcu_gp_start_if_needed run #7: crashed: BUG: unable to handle kernel paging request in rcu_segcblist_advance run #8: crashed: BUG: unable to handle kernel paging request in rcu_segcblist_advance run #9: crashed: BUG: unable to handle kernel paging request in rcu_segcblist_advance run #10: crashed: BUG: unable to handle kernel NULL pointer dereference in bch2_fs_btree_iter_exit run #11: crashed: BUG: unable to handle kernel paging request in rcu_segcblist_advance run #12: crashed: BUG: workqueue lockup run #13: crashed: BUG: unable to handle kernel paging request in rcu_segcblist_advance run #14: crashed: BUG: unable to handle kernel paging request in rcu_segcblist_advance run #15: crashed: BUG: workqueue lockup run #16: crashed: BUG: workqueue lockup run #17: crashed: BUG: workqueue lockup run #18: crashed: BUG: workqueue lockup run #19: crashed: BUG: workqueue lockup representative crash: BUG: unable to handle kernel paging request in rcu_segcblist_advance, types: [MEMORY_SAFETY_BUG UNKNOWN] crash still not fixed/happens on the oldest tested release reproducer is flaky (0.42 repro chance estimate) revisions tested: 8, total time: 2h45m38.959055095s (build: 52m27.552887083s, test: 1h38m20.233996606s) crash still not fixed or there were kernel test errors commit msg: Merge tag 'probes-fixes-v6.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace crash: BUG: unable to handle kernel paging request in rcu_segcblist_advance BUG: unable to handle page fault for address: ffffe8ffffffffc9 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 10003f067 P4D 10003f067 PUD 107693067 PMD 0 Oops: Oops: 0000 [#1] SMP PTI CPU: 1 UID: 0 PID: 2889 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(none) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 RIP: 0010:rcu_segcblist_restempty kernel/rcu/rcu_segcblist.h:105 [inline] RIP: 0010:rcu_segcblist_advance+0xc/0xb0 kernel/rcu/rcu_segcblist.c:474 Code: 47 20 e9 07 b9 a8 01 cc 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 0f b6 47 70 48 8b 47 08 <48> 83 38 00 0f 84 8c 00 00 00 48 3b 77 30 0f 88 82 00 00 00 48 8b RSP: 0018:ffffc9000206bcb0 EFLAGS: 00010086 RAX: ffffe8ffffffffc9 RBX: fffffffffffffe74 RCX: 5f608db83faa6e00 RDX: 000000007d7a6319 RSI: fffffffffffffe70 RDI: ffffe8ffffc1c900 RBP: 0000000000000282 R08: 0000000000048000 R09: 0000000000008000 R10: 0000000000013685 R11: 0000000000008d96 R12: ffffe8ffffc1c900 R13: ffff888160204388 R14: fffffffffffffe77 R15: ffffe8ffffc1c880 FS: 000055558ff18500(0000) GS:ffff8882b306b000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffe8ffffffffc9 CR3: 000000017a4b0000 CR4: 00000000003506f0 Call Trace: srcu_gp_start_if_needed+0x251/0x690 kernel/rcu/srcutree.c:1318 __call_srcu kernel/rcu/srcutree.c:1391 [inline] __synchronize_srcu+0x237/0x280 kernel/rcu/srcutree.c:1443 bch2_fs_btree_iter_exit+0x16c/0x1b0 fs/bcachefs/btree_iter.c:3750 __bch2_fs_free fs/bcachefs/super.c:617 [inline] bch2_fs_release+0x270/0x460 fs/bcachefs/super.c:667 kobject_cleanup lib/kobject.c:689 [inline] kobject_release lib/kobject.c:720 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x8e/0x190 lib/kobject.c:737 deactivate_locked_super+0x33/0x150 fs/super.c:474 cleanup_mnt+0x7c/0x130 fs/namespace.c:1375 task_work_run+0x87/0xb0 kernel/task_work.c:227 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop+0xe0/0x100 kernel/entry/common.c:43 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline] do_syscall_64+0x1fe/0x2c0 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc4f3787057 Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffcd3443cc8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007fc4f380180c RCX: 00007fc4f3787057 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffcd3443d80 RBP: 00007ffcd3443d80 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffcd3444e00 R13: 00007fc4f380180c R14: 00007ffcd3444e40 R15: 0000000000000008 Modules linked in: CR2: ffffe8ffffffffc9 ---[ end trace 0000000000000000 ]--- RIP: 0010:rcu_segcblist_restempty kernel/rcu/rcu_segcblist.h:105 [inline] RIP: 0010:rcu_segcblist_advance+0xc/0xb0 kernel/rcu/rcu_segcblist.c:474 Code: 47 20 e9 07 b9 a8 01 cc 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 0f b6 47 70 48 8b 47 08 <48> 83 38 00 0f 84 8c 00 00 00 48 3b 77 30 0f 88 82 00 00 00 48 8b RSP: 0018:ffffc9000206bcb0 EFLAGS: 00010086 RAX: ffffe8ffffffffc9 RBX: fffffffffffffe74 RCX: 5f608db83faa6e00 RDX: 000000007d7a6319 RSI: fffffffffffffe70 RDI: ffffe8ffffc1c900 RBP: 0000000000000282 R08: 0000000000048000 R09: 0000000000008000 R10: 0000000000013685 R11: 0000000000008d96 R12: ffffe8ffffc1c900 R13: ffff888160204388 R14: fffffffffffffe77 R15: ffffe8ffffc1c880 FS: 000055558ff18500(0000) GS:ffff8882b306b000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffe8ffffffffc9 CR3: 000000017a4b0000 CR4: 00000000003506f0 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: e9 07 b9 a8 01 jmp 0x1a8b90c 5: cc int3 6: 66 0f 1f 44 00 00 nopw 0x0(%rax,%rax,1) c: 90 nop d: 90 nop e: 90 nop f: 90 nop 10: 90 nop 11: 90 nop 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop 16: 90 nop 17: 90 nop 18: 90 nop 19: 90 nop 1a: 90 nop 1b: 90 nop 1c: 66 0f 1f 00 nopw (%rax) 20: 0f b6 47 70 movzbl 0x70(%rdi),%eax 24: 48 8b 47 08 mov 0x8(%rdi),%rax * 28: 48 83 38 00 cmpq $0x0,(%rax) <-- trapping instruction 2c: 0f 84 8c 00 00 00 je 0xbe 32: 48 3b 77 30 cmp 0x30(%rdi),%rsi 36: 0f 88 82 00 00 00 js 0xbe 3c: 48 rex.W 3d: 8b .byte 0x8b