Comments (7)
hugelgupf
commented on June 9, 2024
That’s a cool bug.
Can you add -v (just -v) to the kernel cmdline args? It’ll make the init process not quiet the kernel prints once userland is started and we can see if there’s something interesting happening during that crash.
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HashFail
commented on June 9, 2024
@hugelgupf thanks for the response! I now see the following additional output:
2024/02/29 20:35:28 Welcome to u-root!
_
_ _ _ __ ___ ___ | |_
| | | |____| '__/ _ \ / _ \| __|
| |_| |____| | | (_) | (_) | |_
\__,_| |_| \___/ \___/ \__|
u-root init: error creating mount -t "securityfs" -o "securityfs" "/sys/kernel/security" flags 0x0: no such file or directory
u-root init: error creating mount -t "securityfs" -o "securityfs" "/sys/kernel/security" flags 0x0: no such file or directory
u-root init [optional]: warning creating mount -t "tmpfs" -o "cgroup" "/sys/fs/cgroup" flags 0x0: no such file or directory
u-root init [optional]: warning creating mount -t "tmpfs" -o "cgroup" "/sys/fs/cgroup" flags 0x0: no such file or directory
usb 2-3: new high-speed USB device number 2 using xhci_hcd
usb 2-3: new high-speed USB device number 2 using xhci_hcd
u-root init [optional]: warning creating dir "/sys/fs/cgroup/memory" (mode 0555): mkdir /sys/fs/cgroup: operation not permitted
u-root init [optional]: warning creating dir "/sys/fs/cgroup/memory" (mode 0555): mkdir /sys/fs/cgroup: operation not permitted
u-root init [optional]: warning creating dir "/sys/fs/cgroup/freezer" (mode 0555): mkdir /sys/fs/cgroup: operation not permitted
u-root init [optional]: warning creating dir "/sys/fs/cgroup/freezer" (mode 0555): mkdir /sys/fs/cgroup: operation not permitted
u-root init [optional]: warning creating dir "/sys/fs/cgroup/devices" (mode 0555): mkdir /sys/fs/cgroup: operation not permitted
u-root init [optional]: warning creating dir "/sys/fs/cgroup/devices" (mode 0555): mkdir /sys/fs/cgroup: operation not permitted
u-root init [optional]: warning creating dir "/sys/fs/cgroup/cpu,cpuacct" (mode 0555): mkdir /sys/fs/cgroup: operation not permitted
u-root init [optional]: warning creating dir "/sys/fs/cgroup/cpu,cpuacct" (mode 0555): mkdir /sys/fs/cgroup: operation not permitted
u-root init [optional]: warning creating dir "/sys/fs/cgroup/blkio" (mode 0555): mkdir /sys/fs/cgroup: operation not permitted
u-root init [optional]: warning creating dir "/sys/fs/cgroup/blkio" (mode 0555): mkdir /sys/fs/cgroup: operation not permitted
u-root init [optional]: warning creating dir "/sys/fs/cgroup/cpuset" (mode 0555): mkdir /sys/fs/cgroup: operation not permitted
u-root init [optional]: warning creating dir "/sys/fs/cgroup/cpuset" (mode 0555): mkdir /sys/fs/cgroup: operation not permitted
u-root init [optional]: warning creating dir "/sys/fs/cgroup/pids" (mode 0555): mkdir /sys/fs/cgroup: operation not permitted
u-root init [optional]: warning creating dir "/sys/fs/cgroup/pids" (mode 0555): mkdir /sys/fs/cgroup: operation not permitted
usb 2-3: New USB device found, idVendor=0424, idProduct=2660, bcdDevice= 8.01
usb 2-3: New USB device found, idVendor=0424, idProduct=2660, bcdDevice= 8.01
u-root init [optional]: warning creating dir "/sys/fs/cgroup/net_cls,net_prio" (mode 0555): mkdir /sys/fs/cgroup: operation not permitted
u-root init [optional]: warning creating dir "/sys/fs/cgroup/net_cls,net_prio" (mode 0555): mkdir /sys/fs/cgroup: operation not permitted
usb 2-3: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 2-3: New USB device strings: Mfr=0, Product=0, SerialNumber=0
init: 2024/02/29hub 2-3:1.0: USB hub found
hub 2-3:1.0: USB hub found
hub 2-3:1.0: 2 ports detected
hub 2-3:1.0: 2 ports detected
20:35:28 stat /inito: no such file or directory
init: 2024/02/29 20:35:28 stat /bbin/uinit: no such file or directory
init: 2024/02/29 20:35:28 Trying to run /bin/uinit
usb 3-4: new SuperSpeed USB device number 2 using xhci_hcd
usb 3-4: new SuperSpeed USB device number 2 using xhci_hcd
usb 3-4: New USB device found, idVendor=0bda, idProduct=0329, bcdDevice=29.08
usb 3-4: New USB device found, idVendor=0bda, idProduct=0329, bcdDevice=29.08
usb 3-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 3-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 3-4: Product: USB3.0-CRW
usb 3-4: Product: USB3.0-CRW
usb 3-4: Manufacturer: Generic
usb 3-4: Manufacturer: Generic
usb 3-4: SerialNumber: 29203008282014000
usb 3-4: SerialNumber: 29203008282014000
usb-storage 3-4:1.0: USB Mass Storage device detected
usb-storage 3-4:1.0: USB Mass Storage device detected
scsi host0: usb-storage 3-4:1.0
scsi host0: usb-storage 3-4:1.0
usb 2-6: new low-speed USB device number 3 using xhci_hcd
usb 2-6: new low-speed USB device number 3 using xhci_hcd
usb 2-6: New USB device found, idVendor=1c4f, idProduct=0016, bcdDevice= 1.10
usb 2-6: New USB device found, idVendor=1c4f, idProduct=0016, bcdDevice= 1.10
usb 2-6: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 2-6: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 2-6: Product: USB Keyboard
usb 2-6: Product: USB Keyboard
usb 2-6: Manufacturer: SIGMACHIP
usb 2-6: Manufacturer: SIGMACHIP
input: SIGMACHIP USB Keyboard as /devices/pci0000:00/0000:00:14.0/usb2/2-6/2-6:1.0/0003:1C4F:0016.0001/input/input0
input: SIGMACHIP USB Keyboard as /devices/pci0000:00/0000:00:14.0/usb2/2-6/2-6:1.0/0003:1C4F:0016.0001/input/input0
usb 3-6: new SuperSpeed USB device number 3 using xhci_hcd
usb 3-6: new SuperSpeed USB device number 3 using xhci_hcd
hid-generic 0003:1C4F:0016.0001: input,hidraw0: USB HID v1.10 Keyboard [SIGMACHIP USB Keyboard] on usb-0000:00:14.0-6/input0
hid-generic 0003:1C4F:0016.0001: input,hidraw0: USB HID v1.10 Keyboard [SIGMACHIP USB Keyboard] on usb-0000:00:14.0-6/input0
usb 3-6: New USB device found, idVendor=152d, idProduct=b567, bcdDevice= 2.23
usb 3-6: New USB device found, idVendor=152d, idProduct=b567, bcdDevice= 2.23
usb 3-6: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 3-6: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 3-6: Product: USB3.0 to SATA adapter
usb 3-6: Product: USB3.0 to SATA adapter
usb 3-6: Manufacturer: JMicron
usb 3-6: Manufacturer: JMicron
usb 3-6: SerialNumber: 0000AB1235BA
usb 3-6: SerialNumber: 0000AB1235BA
input: SIGMACHIP USB Keyboard Consumer Control as /devices/pci0000:00/0000:00:14.0/usb2/2-6/2-6:1.1/0003:1C4F:0016.0002/input/input1
input: SIGMACHIP USB Keyboard Consumer Control as /devices/pci0000:00/0000:00:14.0/usb2/2-6/2-6:1.1/0003:1C4F:0016.0002/input/input1
input: SIGMACHIP USB Keyboard System Control as /devices/pci0000:00/0000:00:14.0/usb2/2-6/2-6:1.1/0003:1C4F:0016.0002/input/input2
input: SIGMACHIP USB Keyboard System Control as /devices/pci0000:00/0000:00:14.0/usb2/2-6/2-6:1.1/0003:1C4F:0016.0002/input/input2
hid-generic 0003:1C4F:0016.0002: input,hidraw1: USB HID v1.10 Device [SIGMACHIP USB Keyboard] on usb-0000:00:14.0-6/input1
hid-generic 0003:1C4F:0016.0002: input,hidraw1: USB HID v1.10 Device [SIGMACHIP USB Keyboard] on usb-0000:00:14.0-6/input1
scsi host1: uas
scsi host1: uas
scsi 1:0:0:0: Direct-Access T-FORCE 1TB 0223 PQ: 0 ANSI: 6
scsi 1:0:0:0: Direct-Access T-FORCE 1TB 0223 PQ: 0 ANSI: 6
sd 1:0:0:0: [sda] 2000409264 512-byte logical blocks: (1.02 TB/954 GiB)
sd 1:0:0:0: [sda] 2000409264 512-byte logical blocks: (1.02 TB/954 GiB)
sd 1:0:0:0: [sda] 4096-byte physical blocks
sd 1:0:0:0: [sda] 4096-byte physical blocks
sd 1:0:0:0: [sda] Write Protect is off
sd 1:0:0:0: [sda] Write Protect is off
sd 1:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
sd 1:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
sd 1:0:0:0: [sda] Optimal transfer size 33553920 bytes not a multiple of physical block size (4096 bytes)
sd 1:0:0:0: [sda] Optimal transfer size 33553920 bytes not a multiple of physical block size (4096 bytes)
sda: sda1 sda2
sda: sda1 sda2
sd 1:0:0:0: [sda] Attached SCSI disk
sd 1:0:0:0: [sda] Attached SCSI disk
usb 2-13: new low-speed USB device number 4 using xhci_hcd
usb 2-13: new low-speed USB device number 4 using xhci_hcd
usb 2-13: New USB device found, idVendor=040b, idProduct=2000, bcdDevice= 2.05
usb 2-13: New USB device found, idVendor=040b, idProduct=2000, bcdDevice= 2.05
usb 2-13: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 2-13: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 2-13: Product: USB Keyboard
usb 2-13: Product: USB Keyboard
usb 2-13: Manufacturer: Generic
usb 2-13: Manufacturer: Generic
input: Generic USB Keyboard as /devices/pci0000:00/0000:00:14.0/usb2/2-13/2-13:1.0/0003:040B:2000.0003/input/input3
input: Generic USB Keyboard as /devices/pci0000:00/0000:00:14.0/usb2/2-13/2-13:1.0/0003:040B:2000.0003/input/input3
hid-generic 0003:040B:2000.0003: input,hidraw2: USB HID v1.10 Keyboard [Generic USB Keyboard] on usb-0000:00:14.0-13/input0
hid-generic 0003:040B:2000.0003: input,hidraw2: USB HID v1.10 Keyboard [Generic USB Keyboard] on usb-0000:00:14.0-13/input0
input: Generic USB Keyboard System Control as /devices/pci0000:00/0000:00:14.0/usb2/2-13/2-13:1.1/0003:040B:2000.0004/input/input4
input: Generic USB Keyboard System Control as /devices/pci0000:00/0000:00:14.0/usb2/2-13/2-13:1.1/0003:040B:2000.0004/input/input4
input: Generic USB Keyboard Consumer Control as /devices/pci0000:00/0000:00:14.0/usb2/2-13/2-13:1.1/0003:040B:2000.0004/input/input5
input: Generic USB Keyboard Consumer Control as /devices/pci0000:00/0000:00:14.0/usb2/2-13/2-13:1.1/0003:040B:2000.0004/input/input5
input: Generic USB Keyboard Mouse as /devices/pci0000:00/0000:00:14.0/usb2/2-13/2-13:1.1/0003:040B:2000.0004/input/input6
input: Generic USB Keyboard Mouse as /devices/pci0000:00/0000:00:14.0/usb2/2-13/2-13:1.1/0003:040B:2000.0004/input/input6
hid-generic 0003:040B:2000.0004: input,hidraw3: USB HID v1.10 Mouse [Generic USB Keyboard] on usb-0000:00:14.0-13/input1
hid-generic 0003:040B:2000.0004: input,hidraw3: USB HID v1.10 Mouse [Generic USB Keyboard] on usb-0000:00:14.0-13/input1
scsi 0:0:0:0: Direct-Access Generic- SD/MMC CRW 1.00 PQ: 0 ANSI: 6
scsi 0:0:0:0: Direct-Access Generic- SD/MMC CRW 1.00 PQ: 0 ANSI: 6
sd 0:0:0:0: [sdb] Media removed, stopped polling
sd 0:0:0:0: [sdb] Media removed, stopped polling
sd 0:0:0:0: [sdb] Attached SCSI removable disk
sd 0:0:0:0: [sdb] Attached SCSI removable disk
2024/02/29 20:36:24 fork/exec /bin/uinit: resource temporarily unavailable
init: 2024/02/29 20:36:31 Shell exited, exit status 1
init: 2024/02/29 20:36:31 stat /buildbin/uinit: no such file or directory
init: 2024/02/29 20:36:31 Trying to run /bin/defaultsh
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hugelgupf
commented on June 9, 2024
It kinda feels like a fork-bomb. I'll try to repro in a VM test.
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hugelgupf
commented on June 9, 2024
Definitely a fork bomb, I have a repro https://github.com/hugelgupf/u-root/blob/forkbomb/integration/generic-tests/fork_bomb_test.go (no need to fork bomb your own system when it can be done in a VM).
Looks like it's an issue with how gosh deals with hash-bang invocations, because when I use the equivalent of -uinitcmd="gosh script.sh" it works just fine (which is the workaround you can use for now)
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HashFail
commented on June 9, 2024
Thanks a lot friend! That did the trick.
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hugelgupf
commented on June 9, 2024
I got a draft to fix the hash bang issue but still working on better testing. Keeping this open till I’m able to do that.
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HashFail
commented on June 9, 2024
Will do
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Related Issues (20)
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