linux-kernel - Re: Linux 4.18-rc7

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Message-ID: <CAOzgRdYauteaS7hsPGOCt7a3jgciGk43BOjWuk9yQNt3xaqeyw@mail.gmail.com>
Date:   Wed, 1 Aug 2018 07:07:31 +0800
From:   youling 257 <youling257@...il.com>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     Amit Pundir <amit.pundir@...aro.org>,
        John Stultz <john.stultz@...aro.org>,
        Hugh Dickins <hughd@...gle.com>,
        "Kirill A. Shutemov" <kirill@...temov.name>,
        Matthew Wilcox <willy@...radead.org>,
        "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Oleg Nesterov <oleg@...hat.com>,
        Andrea Arcangeli <aarcange@...hat.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-mm <linux-mm@...ck.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Joel Fernandes <joelaf@...gle.com>,
        Colin Cross <ccross@...gle.com>
Subject: Re: Linux 4.18-rc7

my x86 report

isPrevious: true
Build:
Android-x86/android_x86/x86:8.1.0/OPM6.171019.030.B1/cwhuang0618:userdebug/test-keys
Hardware: unknown
Revision: 0
Bootloader: unknown
Radio: unknown
Kernel: Linux version 4.18.0-rc7-android-x86_64+ (root@...alhost) (gcc
version 8.2.0 (Ubuntu 8.2.0-1ubuntu2)) #1 SMP PREEMPT Mon Jul 30 12:26:29
CST 2018

*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
Build fingerprint:
'Android-x86/android_x86/x86:8.1.0/OPM6.171019.030.B1/cwhuang0618:userdebug/test-keys'
Revision: '0'
ABI: 'x86'
pid: 2899, tid: 2899, name: zygote >>> zygote <<<
signal 7 (SIGBUS), code 2 (BUS_ADRERR), fault addr 0xec00008
    eax 00000000 ebx f0274a40 ecx 000001e0 edx 0ec00008
    esi 00000000 edi 0ec00000
    xcs 00000023 xds 0000002b xes 0000002b xfs 00000003 xss 0000002b
    eip f24a4996 ebp ffc4eaa8 esp ffc4ea68 flags 00010202

backtrace:
    #00 pc 0001a996 /system/lib/libc.so (memset+150)
    #01 pc 0022b2be /system/lib/libart.so (create_mspace_with_base+222)
    #02 pc 002b2a05 /system/lib/libart.so
(art::gc::space::DlMallocSpace::CreateMspace(void*, unsigned int, unsigned
int)+69)
    #03 pc 002b2637 /system/lib/libart.so
(art::gc::space::DlMallocSpace::CreateFromMemMap(art::MemMap*,
std::__1::basic_string<char, std::__1::char_traits<char>,
std::__1::allocator<char>> const&, unsigned int, unsigned int, unsigned
int, unsigned int, bool)+55)
    #04 pc 0027f6af /system/lib/libart.so (art::gc::Heap::Heap(unsigned
int, unsigned int, unsigned int, unsigned int, double, double, unsigned
int, unsigned int, std::__1::basic_string<char,
std::__1::char_traits<char>, std::__1::allocator<char>> const&,
art::InstructionSet, art::gc::CollectorType, art::gc::CollectorType,
art::gc::space::LargeObjectSpaceType, unsigned int, unsigned int, unsigned
int, bool, unsigned int, unsigned int, bool, bool, bool, bool, bool, bool,
bool, bool, bool, bool, bool, unsig #05 pc 0055a17a /system/lib/libart.so
(_ZN3art7Runtime4InitEONS_18RuntimeArgumentMapE+11434)
    #06 pc 0055e928 /system/lib/libart.so
(art::Runtime::Create(std::__1::vector<std::__1::pair<std::__1::basic_string<char,
std::__1::char_traits<char>, std::__1::allocator<char>>, void const*>,
std::__1::allocator<std::__1::pair<std::__1::basic_string<char,
std::__1::char_traits<char>, std::__1::allocator<char>>, void const*>>>
const&, bool)+184)
    #07 pc 003a1117 /system/lib/libart.so (JNI_CreateJavaVM+647)
    #08 pc 000044ae /system/lib/libnativehelper.so (JNI_CreateJavaVM+46)
    #09 pc 00078d1d /system/lib/libandroid_runtime.so
(android::AndroidRuntime::startVm(_JavaVM**, _JNIEnv**, bool)+7581)
    #10 pc 000791fb /system/lib/libandroid_runtime.so
(android::AndroidRuntime::start(char const*,
android::Vector<android::String8> const&, bool)+395)
    #11 pc 00003119 /system/bin/app_process32 (main+1689)
    #12 pc 000b6a34 /system/lib/libc.so (__libc_init+100)
    #13 pc 000029dd /system/bin/app_process32 (_start_main+80)
    #14 pc 000029e8 /system/bin/app_process32 (_start+10)
    #15 pc 00000004 <unknown>
    #16 pc 00020b69 [stack:ffc31000]

2018-08-01 0:29 GMT+08:00 Linus Torvalds <torvalds@...ux-foundation.org>:

> On Mon, Jul 30, 2018 at 11:40 PM Amit Pundir <amit.pundir@...aro.org>
> wrote:
> >
> > This ashmem change ^^ worked too.
>
> Ok, let's go for that one and hope it's the only one.
>
> John, can I get a proper commit message and sign-off for that ashmem
> change?
>
> Kirill - you mentioned that somebody reproduced a problem on x86-64
> too. I didn't see that report. Was that some odd x86 Android setup
> with Ashmem too, or is there something else pending?
>
>                        Linus
>

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