ci2 starts bisection 2024-05-16 21:06:57.646741892 +0000 UTC m=+15233.537919282 bisecting fixing commit since 92432f07d6635531a982c0d4c7ea1274915aac67 building syzkaller on 578f753887693e1375d17cf79dc1c575f6032a5d ensuring issue is reproducible on original commit 92432f07d6635531a982c0d4c7ea1274915aac67 testing commit 92432f07d6635531a982c0d4c7ea1274915aac67 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 706207ec725cd4201f426cc171a8fe892a8c97a0b8c8f33b33a26aee0db2ee2f all runs: crashed: BUG: scheduling while atomic in rcu_boost_kthread representative crash: BUG: scheduling while atomic in rcu_boost_kthread, types: [ATOMIC_SLEEP] check whether we can drop unnecessary instrumentation disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP HANG], they are not needed testing commit 92432f07d6635531a982c0d4c7ea1274915aac67 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7218ff1f3b299a2f72e98d16d8782bd805f44034592c728b963a23adec6a414e run #0: crashed: BUG: scheduling while atomic in rcu_boost_kthread run #1: crashed: BUG: scheduling while atomic in rcu_boost_kthread run #2: crashed: BUG: scheduling while atomic in rcu_boost_kthread run #3: crashed: BUG: scheduling while atomic in rcu_boost_kthread run #4: crashed: BUG: scheduling while atomic in rcu_boost_kthread run #5: crashed: BUG: scheduling while atomic in rcu_boost_kthread run #6: crashed: BUG: scheduling while atomic in rcu_boost_kthread run #7: crashed: BUG: scheduling while atomic in rcu_boost_kthread run #8: OK run #9: OK representative crash: BUG: scheduling while atomic in rcu_boost_kthread, types: [ATOMIC_SLEEP] the bug reproduces without the instrumentation disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP HANG], they are not needed kconfig minimization: base=5179 full=6492 leaves diff=255 split chunks (needed=false): <255> split chunk #0 of len 255 into 5 parts testing without sub-chunk 1/5 disabling configs for [UBSAN BUG KASAN LOCKDEP HANG LEAK], they are not needed testing commit 92432f07d6635531a982c0d4c7ea1274915aac67 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e44e309a6f4448b7800ca0cb88a035a7f3ff10d74baee9c1de12583f9e5b5872 all runs: crashed: BUG: scheduling while atomic in rcu_boost_kthread representative crash: BUG: scheduling while atomic in rcu_boost_kthread, types: [ATOMIC_SLEEP] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP HANG], they are not needed testing commit 92432f07d6635531a982c0d4c7ea1274915aac67 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 671e4cdeecab5a7bbc36baf52feac1094585ac4d007546752f63eed97a4f5ca6 run #0: crashed: BUG: scheduling while atomic in rcu_boost_kthread run #1: crashed: BUG: scheduling while atomic in rcu_boost_kthread run #2: crashed: BUG: scheduling while atomic in rcu_boost_kthread run #3: crashed: BUG: scheduling while atomic in rcu_boost_kthread run #4: crashed: BUG: scheduling while atomic in rcu_boost_kthread run #5: crashed: BUG: scheduling while atomic in rcu_boost_kthread run #6: crashed: BUG: scheduling while atomic in rcu_boost_kthread run #7: crashed: BUG: scheduling while atomic in rcu_boost_kthread run #8: OK run #9: OK representative crash: BUG: scheduling while atomic in rcu_boost_kthread, types: [ATOMIC_SLEEP] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [UBSAN BUG KASAN LOCKDEP HANG LEAK], they are not needed testing commit 92432f07d6635531a982c0d4c7ea1274915aac67 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3e964264cb0f78be3917154638fba34435d283b07b9e1a91a856b25dcdede5d9 run #0: crashed: BUG: scheduling while atomic in rcu_boost_kthread run #1: crashed: BUG: scheduling while atomic in rcu_boost_kthread run #2: crashed: BUG: scheduling while atomic in rcu_boost_kthread run #3: crashed: BUG: scheduling while atomic in rcu_boost_kthread run #4: crashed: BUG: scheduling while atomic in rcu_boost_kthread run #5: crashed: BUG: scheduling while atomic in rcu_boost_kthread run #6: crashed: BUG: scheduling while atomic in rcu_boost_kthread run #7: crashed: BUG: scheduling while atomic in rcu_boost_kthread run #8: crashed: BUG: scheduling while atomic in rcu_boost_kthread run #9: OK representative crash: BUG: scheduling while atomic in rcu_boost_kthread, types: [ATOMIC_SLEEP] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [LOCKDEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit 92432f07d6635531a982c0d4c7ea1274915aac67 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: bbe48056579dc18781a525a165c7d923f8a682c3faf6e10667ab33b2f475b9df run #0: crashed: BUG: scheduling while atomic in rcu_boost_kthread run #1: crashed: BUG: scheduling while atomic in rcu_boost_kthread run #2: crashed: BUG: scheduling while atomic in rcu_boost_kthread run #3: crashed: BUG: scheduling while atomic in rcu_boost_kthread run #4: crashed: BUG: scheduling while atomic in rcu_boost_kthread run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK representative crash: BUG: scheduling while atomic in rcu_boost_kthread, types: [ATOMIC_SLEEP] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit 92432f07d6635531a982c0d4c7ea1274915aac67 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building 92432f07d6635531a982c0d4c7ea1274915aac67: net/socket.c:1242: undefined reference to `wext_handle_ioctl' net/socket.c:3437: undefined reference to `compat_wext_handle_ioctl' net/core/net-procfs.c:329: undefined reference to `wext_proc_init' net/core/net-procfs.c:345: undefined reference to `wext_proc_exit' minimized to 51 configs; suspects: [HID_ZEROPLUS USB_NET_DM9601 USB_NET_GL620A USB_NET_MCS7830 USB_NET_NET1080 USB_NET_PLUSB USB_NET_RNDIS_HOST USB_NET_SMSC75XX USB_NET_SMSC95XX USB_NET_SR9700 USB_NET_SR9800 USB_NET_ZAURUS USB_OHCI_HCD USB_OHCI_HCD_PCI USB_OHCI_HCD_PLATFORM USB_OTG USB_OTG_FSM USB_PRINTER USB_SERIAL_GENERIC USB_SERIAL_PL2303 USB_STORAGE_ALAUDA USB_STORAGE_CYPRESS_ATACB USB_STORAGE_DATAFAB USB_STORAGE_FREECOM USB_STORAGE_ISD200 USB_STORAGE_JUMPSHOT USB_STORAGE_KARMA USB_STORAGE_ONETOUCH USB_STORAGE_SDDR09 USB_STORAGE_SDDR55 USB_STORAGE_USBAT USB_TRANCEVIBRATOR USB_U_AUDIO USB_U_ETHER USB_U_SERIAL USB_WDM V4L2_ASYNC V4L2_FWNODE VIDEO_CAMERA_SENSOR WLAN WLAN_VENDOR_ATH WLAN_VENDOR_ATMEL WLAN_VENDOR_BROADCOM WLAN_VENDOR_INTERSIL WLAN_VENDOR_MARVELL WLAN_VENDOR_MEDIATEK WLAN_VENDOR_MICROCHIP WLAN_VENDOR_PURELIFI WLAN_VENDOR_RALINK WLAN_VENDOR_REALTEK WLAN_VENDOR_RSI WLAN_VENDOR_SILABS WLAN_VENDOR_ZYDAS X86_X32_ABI ZEROPLUS_FF] disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP HANG], they are not needed testing current HEAD 1d241d978d94256071bc3bd1a6537cea2959d712 testing commit 1d241d978d94256071bc3bd1a6537cea2959d712 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: af7d2154bcc38982dce632ee3d9023b18bef18ebe2e19fa55f15e92ab4f0d02e run #0: crashed: BUG: scheduling while atomic in rcu_boost_kthread run #1: crashed: BUG: scheduling while atomic in rcu_boost_kthread run #2: crashed: BUG: scheduling while atomic in rcu_boost_kthread run #3: crashed: BUG: scheduling while atomic in rcu_boost_kthread run #4: crashed: BUG: scheduling while atomic in rcu_boost_kthread run #5: crashed: BUG: scheduling while atomic in rcu_boost_kthread run #6: crashed: BUG: scheduling while atomic in rcu_boost_kthread run #7: OK run #8: OK run #9: OK representative crash: BUG: scheduling while atomic in rcu_boost_kthread, types: [ATOMIC_SLEEP] crash still not fixed/happens on the oldest tested release revisions tested: 7, total time: 1h35m58.064489056s (build: 17m56.056787433s, test: 1h15m37.127130732s) crash still not fixed or there were kernel test errors commit msg: FROMGIT: usb: dwc3: Wait unconditionally after issuing EndXfer command crash: BUG: scheduling while atomic in rcu_boost_kthread BUG: scheduling while atomic: rcub/0/15/0x00000002 Modules linked in: Preemption disabled at: [] schedule+0x4d/0xc0 kernel/sched/core.c:6808 CPU: 0 PID: 15 Comm: rcub/0 Not tainted 6.1.75-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x68/0x91 lib/dump_stack.c:106 dump_stack+0x10/0x19 lib/dump_stack.c:113 __schedule_bug+0xcf/0x100 kernel/sched/core.c:5964 schedule_debug kernel/sched/core.c:5991 [inline] __schedule+0x4a9/0x6e0 kernel/sched/core.c:6626 schedule+0x54/0xc0 kernel/sched/core.c:6809 rt_mutex_slowlock_block+0x77/0x220 kernel/locking/rtmutex.c:1572 __rt_mutex_slowlock kernel/locking/rtmutex.c:1641 [inline] __rt_mutex_slowlock_locked kernel/locking/rtmutex.c:1677 [inline] rt_mutex_slowlock+0xe7/0x210 kernel/locking/rtmutex.c:1706 __rt_mutex_lock kernel/locking/rtmutex.c:1718 [inline] __rt_mutex_lock_common kernel/locking/rtmutex_api.c:31 [inline] rt_mutex_lock+0x2d/0x80 kernel/locking/rtmutex_api.c:73 rcu_boost kernel/rcu/tree_plugin.h:1099 [inline] rcu_boost_kthread+0x10b/0x300 kernel/rcu/tree_plugin.h:1124 kthread+0xda/0xf0 kernel/kthread.c:386 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306