bisecting fixing commit since dd81e1c7d5fb126e5fbc5c9e334d7b3ec29a16a0
building syzkaller on 214351e168def9426c79e1f65a93ddb112cee906
testing commit dd81e1c7d5fb126e5fbc5c9e334d7b3ec29a16a0
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 06014975b7443f2e4c6d9d1f82c024d79e2e3885db5ebdd0d6e6befa8c67e90a
run #0: crashed: WARNING in cm109_input_open/usb_submit_urb
run #1: crashed: BUG: corrupted list in usb_hcd_link_urb_to_ep
run #2: crashed: WARNING in cm109_input_open/usb_submit_urb
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
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: OK
run #18: OK
run #19: OK
reproducer seems to be flaky
testing current HEAD 143a6252e1b8ab424b4b293512a97cca7295c182
testing commit 143a6252e1b8ab424b4b293512a97cca7295c182
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 4bdc8b15ffd273c727829dc1e4f18bd5ce64b2d8758e1ee8b3e97e072c4ca26d
run #0: crashed: INFO: rcu detected stall in corrupted
run #1: crashed: INFO: rcu detected stall in corrupted
run #2: crashed: INFO: rcu detected stall in corrupted
run #3: crashed: INFO: rcu detected stall in corrupted
run #4: crashed: INFO: rcu detected stall in corrupted
run #5: crashed: INFO: rcu detected stall in corrupted
run #6: crashed: INFO: rcu detected stall in corrupted
run #7: crashed: INFO: rcu detected stall in corrupted
run #8: crashed: INFO: rcu detected stall in corrupted
run #9: crashed: INFO: rcu detected stall in corrupted
run #10: crashed: INFO: rcu detected stall in corrupted
run #11: crashed: INFO: rcu detected stall in corrupted
run #12: crashed: INFO: rcu detected stall in corrupted
run #13: crashed: INFO: rcu detected stall in corrupted
run #14: crashed: INFO: rcu detected stall in corrupted
run #15: crashed: INFO: rcu detected stall in corrupted
run #16: crashed: INFO: rcu detected stall in corrupted
run #17: crashed: WARNING in cm109_input_open/usb_submit_urb
run #18: crashed: INFO: rcu detected stall in corrupted
run #19: crashed: INFO: rcu detected stall in corrupted
Reproducer flagged being flaky
revisions tested: 2, total time: 37m42.215177474s (build: 15m56.791257215s, test: 20m49.082536107s)
the crash still happens on HEAD
commit msg: Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
crash: INFO: rcu detected stall in corrupted
rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P6713 } 4 jiffies s: 28269 root: 0x0/T
rcu: blocking rcu_node structures (internal RCU debug):
usb 6-1: USB disconnect, device number 67
cm109 6-1:0.0: cm109_toggle_buzzer_sync: usb_control_msg() failed -19
usb 6-1: new high-speed USB device number 68 using dummy_hcd
usb 6-1: Using ep0 maxpacket: 16
usb 6-1: config 0 interface 0 altsetting 0 endpoint 0x84 has an invalid bInterval 0, changing to 7
usb 6-1: config 0 interface 0 altsetting 0 endpoint 0x84 has invalid wMaxPacketSize 0
usb 6-1: New USB device found, idVendor=0d8c, idProduct=000e, bcdDevice=b6.8f
usb 6-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 6-1: Product: syz
usb 6-1: Manufacturer: syz
usb 6-1: SerialNumber: syz
usb 6-1: config 0 descriptor??
cm109 6-1:0.0: invalid payload size 0, expected 4
input: CM109 USB driver as /devices/platform/dummy_hcd.5/usb6/6-1/6-1:0.0/input/input1156
usb 1-1: USB disconnect, device number 67
cm109 1-1:0.0: cm109_toggle_buzzer_sync: usb_control_msg() failed -19
usb 1-1: new high-speed USB device number 68 using dummy_hcd
usb 1-1: Using ep0 maxpacket: 16
usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x84 has an invalid bInterval 0, changing to 7
usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x84 has invalid wMaxPacketSize 0
usb 1-1: New USB device found, idVendor=0d8c, idProduct=000e, bcdDevice=b6.8f
usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 1-1: Product: syz
usb 1-1: Manufacturer: syz
usb 1-1: SerialNumber: syz
usb 1-1: config 0 descriptor??
cm109 1-1:0.0: invalid payload size 0, expected 4
input: CM109 USB driver as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/input/input1160
usb 4-1: USB disconnect, device number 70
cm109 4-1:0.0: cm109_toggle_buzzer_sync: usb_control_msg() failed -19
usb 4-1: new high-speed USB device number 71 using dummy_hcd
usb 4-1: Using ep0 maxpacket: 16
usb 4-1: config 0 interface 0 altsetting 0 endpoint 0x84 has an invalid bInterval 0, changing to 7
usb 4-1: config 0 interface 0 altsetting 0 endpoint 0x84 has invalid wMaxPacketSize 0
usb 4-1: New USB device found, idVendor=0d8c, idProduct=000e, bcdDevice=b6.8f
usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 4-1: Product: syz
usb 4-1: Manufacturer: syz
usb 4-1: SerialNumber: syz
usb 4-1: config 0 descriptor??
cm109 4-1:0.0: invalid payload size 0, expected 4
input: CM109 USB driver as /devices/platform/dummy_hcd.3/usb4/4-1/4-1:0.0/input/input1164
usb 4-1: USB disconnect, device number 71