[CRIU] CRIU tries to dump VFP registers while there is not VFP

[Maikel Coenen]

Hi all,

I’m currently experimenting with CRIU to dump a Java application. Unfortunately, it fails during dump because it tries to save the VFP register while I don’t have a VFP.

(19.642166) Collecting fds (pid: 1031)
(19.642209) ----------------------------------------
(19.644116) Found 123 file descriptors
(19.644203) ----------------------------------------
(19.656345) Set up parasite blob using memfd
(19.656457) Putting parasite blob into 0xb6c44000->0xab1b3000
(19.657000) Dumping GP/FPU registers for 1031
(19.657078) Error (compel/arch/arm/src/lib/infect.c:78): Can't obtain FPU registers for 1031: Input/output error
(19.657202) Error (compel/src/lib/infect.c:675): Can't obtain regs for thread 1031
(19.658142) Error (criu/cr-dump.c:1280): Can't infect (pid: 1031) with parasite
(19.658964) Unlock network
(19.659036) Unfreezing tasks into 1
(19.669074) Error (criu/cr-dump.c:1732): Dumping FAILED.

Did I make a mistake in the build process using Yocto for CRIU or my kernel or is it another setting of CRIU which I must enable/disable?

Kind regards,

Maikel Coenen