On Sun, 2008-08-24 at 23:34 +0200, Rafael J. Wysocki wrote: > On Saturday, 23 of August 2008, Rafael J. Wysocki wrote: > > This message has been generated automatically as a part of a report > > of recent regressions. > > > > The following bug entry is on the current list of known regressions > > from 2.6.26. Please verify if it still should be listed and let me know > > (either way). > > > > > > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11355 > > Subject : Regression in 2.6.27-rc2 when cross-building the kernel > > Submitter : Larry Finger <Larry.Finger@xxxxxxxxxxxx> > > Date : 2008-08-16 2:38 (8 days old) > > References : http://marc.info/?l=linux-kernel&m=121885432118368&w=4 > > As I wrote in the Bugzilla, I'm seeing a related problem. > > Namely, I build kernels on one box, with 'make O=<target>', then I mount > <target> on another one over NFS, 'cd' to it and try to install the kernel > modules with 'make modules_install'. This results in 'HOSTCC firmware/ihex2fw' > and 'fatal error: ...: Read-only file system'. It's readily reproducible. > > Commenting out line 1130 of Makefile > ("$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modinst") > obviously helps, so it looks like Makefile.fwinst needs fixing. I don't like this much, but it should do the trick... please confirm. diff --git a/firmware/Makefile b/firmware/Makefile index aab12bf..e7130b5 100644 --- a/firmware/Makefile +++ b/firmware/Makefile @@ -166,15 +166,28 @@ $(patsubst %,$(obj)/%.gen.o, $(fw-external-y)): $(obj)/%.gen.o: $(fwdir)/% $(obj)/%: $(obj)/%.ihex | $(objtree)/$(obj)/$$(dir %) $(call cmd,ihex) +# Don't depend on ihex2fw if we're installing and it already exists. +# Putting it after | in the dependencies doesn't seem sufficient when +# we're installing after a cross-compile, because ihex2fw has dependencies +# on stuff like /usr/lib/gcc/ppc64-redhat-linux/4.3.0/include/stddef.h and +# thus wants to be rebuilt. Which it can't be, if the prebuilt kernel tree +# is exported read-only for someone to run 'make install'. +ifeq ($(INSTALL):$(wildcard $(obj)/ihex2fw),install:$(obj)/ihex2fw) +ihex2fw_dep := +else +ihex2fw_dep := $(obj)/ihex2fw +endif + + # .HEX is also Intel HEX, but where the offset and length in each record # is actually meaningful, because the firmware has to be loaded in a certain # order rather than as a single binary blob. Thus, we convert them into our # more compact binary representation of ihex records (<linux/ihex.h>) -$(obj)/%.fw: $(obj)/%.HEX $(obj)/ihex2fw | $(objtree)/$(obj)/$$(dir %) +$(obj)/%.fw: $(obj)/%.HEX $(ihex2fw_dep) | $(objtree)/$(obj)/$$(dir %) $(call cmd,ihex2fw) # .H16 is our own modified form of Intel HEX, with 16-bit length for records. -$(obj)/%.fw: $(obj)/%.H16 $(obj)/ihex2fw | $(objtree)/$(obj)/$$(dir %) +$(obj)/%.fw: $(obj)/%.H16 $(ihex2fw_dep) | $(objtree)/$(obj)/$$(dir %) $(call cmd,h16tofw) $(firmware-dirs): -- dwmw2 -- To unsubscribe from this list: send the line "unsubscribe kernel-testers" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
