Re: [Ceph-maintainers] Bug#849657: ceph: FTBFS on mips(el): g++: virtual memory exhausted: Cannot allocate memory

On Fri, Dec 30, 2016 at 10:06 AM, Emilio Pozuelo Monfort
<[email protected]> wrote:
> On 29/12/16 20:56, Gaudenz Steinlin wrote:
>>
>> Hi Emilio
>>
>> Emilio Pozuelo Monfort <[email protected]> writes:
>>
>>> Source: ceph
>>> Version: 10.2.5-2
>>> Severity: serious
>>>
>>> Your package failed to build on mips/el:
>>>
>>> g++ -DHAVE_CONFIG_H -I.  -D__CEPH__ -D_FILE_OFFSET_BITS=64 -D_THREAD_SAFE -D__STDC_FORMAT_MACROS -D_GNU_SOURCE -DCEPH_LIBDIR=\"/usr/lib/mipsel-linux-gnu\" -DCEPH_PKGLIBDIR=\"/usr/lib/mipsel-linux-gnu/ceph\" -DGTEST_USE_OWN_TR1_TUPLE=0 -D_REENTRANT    -Wdate-time -D_FORTIFY_SOURCE=2 -I/usr/include/nss -I/usr/include/nspr  -Wall -Wtype-limits -Wignored-qualifiers -Winit-self -Wpointer-arith -Werror=format-security -fno-strict-aliasing -fsigned-char -rdynamic -ftemplate-depth-1024 -Wnon-virtual-dtor -Wno-invalid-offsetof -O2 -g -pipe -Wall -Wp,-U_FORTIFY_SOURCE -Wp,-D_FORTIFY_SOURCE=2 -fexceptions --param=ssp-buffer-size=4 -fPIE -fstack-protector-strong      -Wstrict-null-sentinel -g -O2 -fdebug-prefix-map=/«PKGBUILDDIR»=. -fstack-protector-strong -Wformat -Werror=format-security -c -o tools/rbd/action/Resize.o tools/rbd/action/Resize.cc
>>> virtual memory exhausted: Cannot allocate memory
>>> Makefile:24792: recipe for target
>>> 'test/encoding/ceph_dencoder-ceph_dencoder.o' failed
>>
>> I already noticed this and tried to contact [email protected] and
>> [email protected]. Unfortunately nobody responded yet, so I don't
>> know if the message was even received or not. AFAIK these are the
>> correct contact points for buildd issues.
>
> This is not a buildd issue but a porting issue. debian-mips@ldo is better for
> this. Added to Cc.
>
>> I don't think there is much I can do about this bug and I'm not
>> convinced this is a issue in ceph. If the buildds are unable to build
>> the package we can either completely remove ceph for mips/mipsel or try
>> to only build the client part and have a reduced set of packages on
>> these architectures.
>
> IIRC there are some flags you can pass to reduce memory usage. Most notably
> ggc-min-expand (which is going to be changed in GCC itself, but afaik it hasn't
> happened yet). So you could try adding
>
> --param ggc-min-expand=10
>
> to CFLAGS/CXXFLAGS.
>
> I'd try that before thinking about removing the package from mips.

Reducing -O2 to -O1 did solve the issue for openvdb on mips* (kudos Jochen)

https://packages.qa.debian.org/o/openvdb/news/20161224T090717Z.html