Exec format error on arm, unsupported interworking call (Thumb -> ARM) #7408
Comments
|
exec format error means you used the wrong arch, ie: 32bit on a 64bit only kernel. |
|
No it doesn't. As the dmesg output shows the problem is the "unsupported interworking call". Which as far as I can tell an unpatched kernel does simply not allow. Thumb mode is a personality, not a bit-ness issue. I didn't use any arch but simply run ./configure as recommended in the wiki. This should do the right thing[tm]. I don't see any configure option to enable/disable thumb support so I'm stumped. |
|
I had the same problem on my Helios4 when I tried building as described on the wiki. This message on zfs-discuss describes the cause of this issue. Based on that, I narrowed it down to assembly code for setjmp and longjmp in the lua interpreter in zfs-0.8.2/module/lua/setjmp/setjmp_arm.S. This assembly code uses 32-bit ARM instructions, but the Armbian kernel for the Helios4 is all Thumb2, hence the "unsupported interworking call". I have a crude hack that incompletely fixes the problem: I modified the lua setjmp and longjmp to use Thumb2. It compiles, and I use this ZFS setup every day, but I have never tested the lua feature. Also, the fix is incomplete in that it doesn't detect the type of kernel (32-bit ARM vs Thumb2) and just assumes the kernel is Thumb2. Maybe someone will find this useful, so I've attached a patch. |
When a Thumb-2 kernel is being used, then longjmp must be implemented using the Thumb-2 instruction set in module/lua/setjmp/setjmp_arm.S. Original-patch-by: @jsrlabs Reviewed-by: @awehrfritz Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #7408 Closes #9957 Closes #9967
When a Thumb-2 kernel is being used, then longjmp must be implemented using the Thumb-2 instruction set in module/lua/setjmp/setjmp_arm.S. Original-patch-by: @jsrlabs Reviewed-by: @awehrfritz Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes openzfs#7408 Closes openzfs#9957 Closes openzfs#9967
When a Thumb-2 kernel is being used, then longjmp must be implemented using the Thumb-2 instruction set in module/lua/setjmp/setjmp_arm.S. Original-patch-by: @jsrlabs Reviewed-by: @awehrfritz Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #7408 Closes #9957 Closes #9967
When a Thumb-2 kernel is being used, then longjmp must be implemented using the Thumb-2 instruction set in module/lua/setjmp/setjmp_arm.S. Original-patch-by: @jsrlabs Reviewed-by: @awehrfritz Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes openzfs#7408 Closes openzfs#9957 Closes openzfs#9967
When a Thumb-2 kernel is being used, then longjmp must be implemented using the Thumb-2 instruction set in module/lua/setjmp/setjmp_arm.S. Original-patch-by: @jsrlabs Reviewed-by: @awehrfritz Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes openzfs#7408 Closes openzfs#9957 Closes openzfs#9967
and others
System information
Describe the problem you're observing
Loading zfs module fail:
modprobe: ERROR: could not insert 'zfs': Exec format error
Describe how to reproduce the problem
Checkout git and build deb packages for the running kernel as described on the wiki. Running modprobe zfs then gives the error.
Include any warning/errors/backtraces from the system logs
dmesg shows:
The text was updated successfully, but these errors were encountered: