Messages in this thread | | | Date | Thu, 3 Jun 2021 14:39:07 +0200 | From | Ingo Molnar <> | Subject | Re: kbuild: Ctrl-C of parallel kernel build sometimes corrupts .o.cmd files permanently |
| |
* Masahiro Yamada <masahiroy@kernel.org> wrote:
> Hmm, I have not observed this. > > My expectation is, it should work like this: > > When scripts/basic/fixdep is interrupted (or fail due to any reason), > partially written *.o.cmd is left over. So, having incomplete *.o.cmd > files is expectation. > > When .DELETE_ON_ERROR is specified, GNU Make is supposed to > automatically delete the target on any error. > (If it is interrupted, it should exit with code 130) > > On the next invocation of Make, Kbuild will not include .*.o.cmd files > whose corresponding *.o files do not exist. > > > > > > When you got the corrupted drivers/gpu/drm/.drm_blend.o.cmd, > didn't you see the log > Deleting file 'drivers/gpu/drm/drm_blend.o' ? > > > > If it works as I expect, the log should look like follows: > (I marked the lines with '<---- Deleting') > > > > CC security/keys/keyctl_pkey.o > CC kernel/sys.o > CC arch/x86/power/hibernate_64.o > ^Cmake[5]: *** Deleting file 'drivers/video/fbdev/core/fbcmap.o' <---- Deleting > make[5]: *** [scripts/Makefile.build:272: > drivers/video/fbdev/core/fbmon.o] Interrupt > make[3]: *** [scripts/Makefile.build:272: security/selinux/nlmsgtab.o] Interrupt > make[2]: *** [scripts/Makefile.build:272: arch/x86/power/cpu.o] Interrupt > make[2]: *** [scripts/Makefile.build:272:
Interestingly I don't get *any* interruption messages at all:
CC drivers/dma/dw/acpi.o CC sound/pci/ice1712/ice1712.o CC drivers/char/ipmi/ipmi_watchdog.o CC fs/overlayfs/export.o CC fs/nls/nls_cp936.o CC drivers/char/ipmi/ipmi_poweroff.o ^Ckepler:~/tip>
The '^C' there - it just stops, make never prints anything for me.
Weird ...
Thanks,
Ingo
| |