Messages in this thread | | | From | Arnd Bergmann <> | Date | Fri, 17 Sep 2021 09:20:03 +0200 | Subject | Re: ipv4/tcp.c:4234:1: error: the frame size of 1152 bytes is larger than 1024 bytes [-Werror=frame-larger-than=] |
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On Fri, Sep 17, 2021 at 8:16 AM Brendan Higgins <brendanhiggins@google.com> wrote: > > On Thu, Sep 16, 2021 at 10:39 PM Brendan Higgins > <brendanhiggins@google.com> wrote: > > > > On Tue, Sep 14, 2021 at 3:04 PM Arnd Bergmann <arnd@arndb.de> wrote: > > > > > > On Tue, Sep 14, 2021 at 10:48 PM Brendan Higgins > > > <brendanhiggins@google.com> wrote: > > > > > > > > On Mon, Sep 13, 2021 at 1:55 PM Shuah Khan <skhan@linuxfoundation.org> wrote: > > > > > > > > > > On 9/8/21 3:24 PM, Brendan Higgins wrote: > [...] > > Alright, I incorporated all the above into a patchset that I think is > > ready to send out, but I had a couple of issues with the above > > suggestions:
Thanks a lot for those suggestions.
> > - I could not find a config which causes a stacksize warning for > > sdhci-of-aspeed.
I keep a history of my randconfig builds. This one only happened once before I fixed it, it may depend on some other combination of options. See my original defconfig file at https://pastebin.com/raw/XJxjVGYa rand/0xAB2DD5A0-failure:/git/arm-soc/drivers/mmc/host/sdhci-of-aspeed-test.c:47:1: error: the frame size of 1152 bytes is larger than 1024 bytes [-Werror=frame-larger-than=]
> > - test_scanf is not a KUnit test.
I have three defconfigs for this one, all on x86-64:
rand86/0x30AD57FB-failure:/git/arm-soc/lib/test_scanf.c: In function 'numbers_list_field_width_val_width': rand86/0x30AD57FB-failure:/git/arm-soc/lib/test_scanf.c:530:1: error: the frame size of 2488 bytes is larger than 2048 bytes [-Werror=frame-larger-than=] rand86/0x30AD57FB-failure:/git/arm-soc/lib/test_scanf.c: In function 'numbers_list_field_width_typemax': rand86/0x30AD57FB-failure:/git/arm-soc/lib/test_scanf.c:488:1: error: the frame size of 2968 bytes is larger than 2048 bytes [-Werror=frame-larger-than=] rand86/0x30AD57FB-failure:/git/arm-soc/lib/test_scanf.c: In function 'numbers_list': rand86/0x30AD57FB-failure:/git/arm-soc/lib/test_scanf.c:437:1: error: the frame size of 2488 bytes is larger than 2048 bytes [-Werror=frame-larger-than=]
https://pastebin.com/raw/jUdY6d3G is the worst one of those
> > - Linus already fixed the thunderbolt test by breaking up the test cases.
Ok.
> > I am going to send out patches for the thunderbolt test and for the > > sdhci-of-aspeed test for the sake of completeness, but I am not sure > > if we should merge those two. I'll let y'all decide on the patch > > review. > > Just in case I missed any interested parties on this thread, I posted > my patches here: > > https://lore.kernel.org/linux-kselftest/20210917061104.2680133-1-brendanhiggins@google.com/T/#t
Thanks! I'll reply to the particular patch as well, but I don't think that this is sufficient here:
+CFLAGS_bitfield_kunit.o := $(call cc-option,-Wframe-larger-than=10240) $(DISABLE_STRUCTLEAK_PLUGIN)
If 10KB is actually needed, this definitely overflows the 8KB stack on 32-bit architectures.
Arnd
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