ci2 starts bisection 2025-05-05 04:25:40.579143423 +0000 UTC m=+217251.887920779
bisecting fixing commit since e5e5644ea27f86a29c84df744a01ea7de65ef800
building syzkaller on 045e728ddf201a25525e5e2ae73297b1ddb9aeec
ensuring issue is reproducible on original commit e5e5644ea27f86a29c84df744a01ea7de65ef800

testing commit e5e5644ea27f86a29c84df744a01ea7de65ef800 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 2bfde83337acfb1eb3b1ac7be2fdc742aac6c12dbe046d51c2306af19072f3bb
all runs: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
representative crash: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return, types: [UNKNOWN]
check whether we can drop unnecessary instrumentation
disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed
testing commit e5e5644ea27f86a29c84df744a01ea7de65ef800 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 77681a347894f5df6dcd13e800839ff14486cdc46cd62be3bfbcf1cd52120488
all runs: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
representative crash: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return, types: [UNKNOWN]
the bug reproduces without the instrumentation
disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed
kconfig minimization: base=4788 full=6020 leaves diff=245
split chunks (needed=false): <245>
split chunk #0 of len 245 into 5 parts
testing without sub-chunk 1/5
disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit e5e5644ea27f86a29c84df744a01ea7de65ef800 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 5e2252da20da88ef08f19968a5bd78080b5e4a37fd5903785dae968e69703284
all runs: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
representative crash: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return, types: [UNKNOWN]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed
testing commit e5e5644ea27f86a29c84df744a01ea7de65ef800 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 57d66f44278c024fed1b139982c635a8c9983175403dfd243dabf9fd12094969
run #0: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #1: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #2: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #3: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #4: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #5: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #6: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #7: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #8: OK
run #9: OK
representative crash: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return, types: [UNKNOWN]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed
testing commit e5e5644ea27f86a29c84df744a01ea7de65ef800 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 857629e3719302e12d3f68b717750c07ad1bd99da8a3ae26971f433f621516a1
run #0: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #1: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #2: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #3: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #4: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #5: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #6: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #7: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #8: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #9: OK
representative crash: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return, types: [UNKNOWN]
the chunk can be dropped
testing without sub-chunk 4/5
disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit e5e5644ea27f86a29c84df744a01ea7de65ef800 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 8edd00f67bc60b955572bb6c0f4952a1fe9971f09e9146de66c4e4afa4226ae2
run #0: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #1: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #2: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #3: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #4: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #5: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #6: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #7: OK
run #8: OK
run #9: OK
representative crash: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return, types: [UNKNOWN]
the chunk can be dropped
testing without sub-chunk 5/5
disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit e5e5644ea27f86a29c84df744a01ea7de65ef800 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
failed building e5e5644ea27f86a29c84df744a01ea7de65ef800: net/socket.c:1128: undefined reference to `wext_handle_ioctl'
net/socket.c:3397: undefined reference to `compat_wext_handle_ioctl'
net/core/net-procfs.c:346: undefined reference to `wext_proc_exit'
net/core/net-procfs.c:330: undefined reference to `wext_proc_init'
minimized to 49 configs; suspects: [HID_ZEROPLUS USB_NET_CDC_SUBSET USB_NET_CDC_SUBSET_ENABLE 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 USB_SERIAL_FTDI_SIO 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 USB_XHCI_PCI_RENESAS WLAN WLAN_VENDOR_ATH WLAN_VENDOR_ATMEL WLAN_VENDOR_BROADCOM WLAN_VENDOR_INTERSIL WLAN_VENDOR_MARVELL WLAN_VENDOR_MEDIATEK WLAN_VENDOR_MICROCHIP WLAN_VENDOR_RALINK WLAN_VENDOR_REALTEK WLAN_VENDOR_RSI WLAN_VENDOR_ZYDAS X86_X32 ZEROPLUS_FF]
disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed
testing current HEAD ab07aeb2c93dcc85c5f61ea220c0fd846fcaadd4
testing commit ab07aeb2c93dcc85c5f61ea220c0fd846fcaadd4 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: e6203798c7df29a323a82ce76a688bf564af247495a6032fa34b8a459da28042
run #0: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #1: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #2: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #3: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #4: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #5: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #6: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #7: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #8: OK
run #9: OK
representative crash: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return, types: [UNKNOWN]
crash still not fixed/happens on the oldest tested release
revisions tested: 7, total time: 2h45m37.098066717s (build: 1h21m30.784829962s, test: 1h22m26.099335171s)
crash still not fixed or there were kernel test errors
commit msg: Merge branch 'android13-5.10' into android13-5.10-lts
crash: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
BUG: using smp_processor_id() in preemptible [00000000] code: dhcpcd/129
caller is debug_smp_processor_id+0x17/0x20 lib/smp_processor_id.c:59
CPU: 1 PID: 129 Comm: dhcpcd Not tainted 5.10.236-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack_lvl+0x5d/0x75 lib/dump_stack.c:118
 dump_stack+0x10/0x12 lib/dump_stack.c:135
 check_preemption_disabled+0xc4/0xd0 lib/smp_processor_id.c:48
 debug_smp_processor_id+0x17/0x20 lib/smp_processor_id.c:59
 usbnet_skb_return+0x1b/0xc0 drivers/net/usb/usbnet.c:317
 usbnet_resume_rx+0x23/0x60 drivers/net/usb/usbnet.c:690
 usbnet_change_mtu+0x84/0xc0 drivers/net/usb/usbnet.c:403
 __dev_set_mtu net/core/dev.c:8619 [inline]
 dev_set_mtu_ext+0x105/0x250 net/core/dev.c:8672
 dev_set_mtu+0x35/0x80 net/core/dev.c:8696
 dev_ifsioc+0x1e1/0x360 net/core/dev_ioctl.c:237
 dev_ioctl+0xa7/0x320 net/core/dev_ioctl.c:481
 sock_do_ioctl+0x94/0x130 net/socket.c:1090
 sock_ioctl+0x23c/0x3a0 net/socket.c:1207
 vfs_ioctl fs/ioctl.c:48 [inline]
 __do_sys_ioctl fs/ioctl.c:753 [inline]
 __se_sys_ioctl fs/ioctl.c:739 [inline]
 __x64_sys_ioctl+0x89/0xc0 fs/ioctl.c:739
 do_syscall_64+0x32/0x80 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f0500960d49
Code: 5c c3 48 8d 44 24 08 48 89 54 24 e0 48 89 44 24 c0 48 8d 44 24 d0 48 89 44 24 c8 b8 10 00 00 00 c7 44 24 b8 10 00 00 00 0f 05 <41> 89 c0 3d 00 f0 ff ff 76 10 48 8b 15 ae 60 0d 00 f7 d8 41 83 c8
RSP: 002b:00007ffd46f8aab8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f05008926c0 RCX: 00007f0500960d49
RDX: 00007ffd46f9aca8 RSI: 0000000000008922 RDI: 0000000000000008
RBP: 00007ffd46faae68 R08: 00007ffd46f9ac68 R09: 00007ffd46f9ac18
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd46f9aca8 R14: 0000000000000028 R15: 0000000000008922