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Bug #1107
closedNull pointer dereference on boot with built-in lttng-modules
Status:
Resolved
Priority:
Normal
Assignee:
-
Target version:
-
Start date:
05/17/2017
Due date:
% Done:
100%
Estimated time:
Description
Booting a kernel (v4.4.68 stable branch) with the lttng-modules built-in crashes the kernel.
Procedure I followed:- run ./lttng-modules/built-in.sh ./linux
- Turning on the LTTng option in the .config
- cd ./linux && make
- Boot the kernel with qemu [1]
When booting, the VM hits a bug and prints this callstack [2].
I can successfully build and boot the kernel using that same command [1] when I turn off the lttng-modules in the .config.
lttng-modules commit: c6f05468ac90af73c0077095f5e57f287197e9d8
linux-stable 4.4.y commit: be90e260145c0463c7a5c80ced379adc2f4850cc
[1]
qemu-system-x86_64 deb.qcow2
-enable-kvm
-m 1G
-nographic
-kernel linux/arch/x86/boot/bzImage
-initrd linux/arch/x86/boot/initrd.img
-append "root=UUID=8bf5feb2-6f3a-4842-a242-70aad1afeb98 console=ttyS0"
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