ci2 starts bisection 2024-09-17 16:02:29.8514919 +0000 UTC m=+91435.341919461
bisecting fixing commit since 70e1a731d98699d85ada2cbdd4d487e51b2f7441
building syzkaller on 1e9c4cf3ae82ef82220af312606fffe65e124563
ensuring issue is reproducible on original commit 70e1a731d98699d85ada2cbdd4d487e51b2f7441

testing commit 70e1a731d98699d85ada2cbdd4d487e51b2f7441 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 5c88463a2059b15b8681b24880c5af4d0726d37e25d5214288589017dccfef2c
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: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #10: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #11: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #12: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #13: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #14: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #15: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #16: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #17: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #18: crashed: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
run #19: OK
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 [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed
testing commit 70e1a731d98699d85ada2cbdd4d487e51b2f7441 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: c98f4ac71aecb6ecc729ddca9eb469ae179ea0159ea20cc792bb4423f8ea69c4
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 bug reproduces without the instrumentation
disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed
kconfig minimization: base=4920 full=6203 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 [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed
testing commit 70e1a731d98699d85ada2cbdd4d487e51b2f7441 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 3a6cc6d466014affcf9aeac4ff8b70d27b940db7c3229c83b17b17cc17f4fbf2
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 2/5
disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed
testing commit 70e1a731d98699d85ada2cbdd4d487e51b2f7441 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 70849eed85c1e6da5e50990f3058b436fa31f8fd03dc1e114990c1cf88f7fe55
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: OK
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 3/5
disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed
testing commit 70e1a731d98699d85ada2cbdd4d487e51b2f7441 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 347a7fe9fd9e3c898d7c58a9a426903a08f3fa5fe7d6ed15102214ebfc37c90b
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: OK
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 4/5
disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed
testing commit 70e1a731d98699d85ada2cbdd4d487e51b2f7441 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 879341b662ae03e56d1ba778e35d19de3e7789558b1874b2618007f1eb049db4
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: OK
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 [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed
testing commit 70e1a731d98699d85ada2cbdd4d487e51b2f7441 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
failed building 70e1a731d98699d85ada2cbdd4d487e51b2f7441: net/socket.c:1191: undefined reference to `wext_handle_ioctl'
net/socket.c:3385: undefined reference to `compat_wext_handle_ioctl'
net/core/net-procfs.c:343: undefined reference to `wext_proc_exit'
net/core/net-procfs.c:327: 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 [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed
testing current HEAD b92c0d35d015044124da6005ed3065becc8d98d9
testing commit b92c0d35d015044124da6005ed3065becc8d98d9 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 395e062677556de8a6cd9754671bb42f7eba5daec63cf910d038a426a6fb9304
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: OK
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]
crash still not fixed/happens on the oldest tested release
revisions tested: 7, total time: 2h29m55.536430873s (build: 1h8m6.324329991s, test: 1h20m3.167152001s)
crash still not fixed or there were kernel test errors
commit msg: Revert "drm/mipi-dsi: use correct return type for the DSC functions"
crash: BUG: using smp_processor_id() in preemptible code in usbnet_skb_return
BUG: using smp_processor_id() in preemptible [00000000] code: dhcpcd/133
caller is debug_smp_processor_id+0x17/0x20 lib/smp_processor_id.c:60
CPU: 1 PID: 133 Comm: dhcpcd Not tainted 5.15.161-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x38/0x49 lib/dump_stack.c:106
 dump_stack+0x10/0x12 lib/dump_stack.c:113
 check_preemption_disabled+0xdf/0xf0 lib/smp_processor_id.c:49
 debug_smp_processor_id+0x17/0x20 lib/smp_processor_id.c:60
 usbnet_skb_return+0x22/0xc0 drivers/net/usb/usbnet.c:324
 usbnet_resume_rx+0x23/0x60 drivers/net/usb/usbnet.c:697
 usbnet_change_mtu+0x84/0xc0 drivers/net/usb/usbnet.c:410
 __dev_set_mtu net/core/dev.c:8906 [inline]
 dev_set_mtu_ext+0x108/0x270 net/core/dev.c:8959
 dev_set_mtu+0x35/0x80 net/core/dev.c:8983
 dev_ifsioc+0x2de/0x4d0 net/core/dev_ioctl.c:331
 dev_ioctl+0xb2/0x3b0 net/core/dev_ioctl.c:587
 sock_do_ioctl+0x8d/0xd0 net/socket.c:1154
 sock_ioctl+0x152/0x2a0 net/socket.c:1257
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl fs/ioctl.c:860 [inline]
 __x64_sys_ioctl+0x89/0xc0 fs/ioctl.c:860
 x64_sys_call+0x912/0x990 arch/x86/include/generated/asm/syscalls_64.h:17
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x33/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f7630661d49
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:00007ffe24cc87e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f76305936c0 RCX: 00007f7630661d49
RDX: 00007ffe24cd89d8 RSI: 0000000000008922 RDI: 0000000000000012
RBP: 00007ffe24ce8b98 R08: 00007ffe24cd8998 R09: 00007ffe24cd8948
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe24cd89d8 R14: 0000000000000028 R15: 0000000000008922
 </TASK>