linux-kernel - Re: [PATCH v11 7/9] arm64/kasan: add and use kasan_map

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Message-ID: <CAOAebxt6BMFs_vfobDhd=mP2hDiPQFVsenxyUdktm6bSmwfvVg@mail.gmail.com>
Date:   Fri, 13 Oct 2017 11:34:57 -0400
From:   Pavel Tatashin <pasha.tatashin@...cle.com>
To:     Will Deacon <will.deacon@....com>
Cc:     linux-kernel@...r.kernel.org, sparclinux@...r.kernel.org,
        linux-mm@...ck.org, linuxppc-dev@...ts.ozlabs.org,
        linux-s390@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        x86@...nel.org, kasan-dev@...glegroups.com, borntraeger@...ibm.com,
        heiko.carstens@...ibm.com, davem@...emloft.net,
        willy@...radead.org, Michal Hocko <mhocko@...nel.org>,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>,
        Mark Rutland <mark.rutland@....com>, catalin.marinas@....com,
        sam@...nborg.org, mgorman@...hsingularity.net,
        Steve Sistare <steven.sistare@...cle.com>,
        daniel.m.jordan@...cle.com, bob.picco@...cle.com
Subject: Re: [PATCH v11 7/9] arm64/kasan: add and use kasan_map_populate()

Here is simplified qemu command:

qemu-system-aarch64 \
      -display none \
      -kernel ./arch/arm64/boot/Image  \
      -M virt -cpu cortex-a57 -s -S

In a separate terminal start arm64 cross debugger:

$ aarch64-unknown-linux-gnu-gdb ./vmlinux
...
Reading symbols from ./vmlinux...done.
(gdb) target remote :1234
Remote debugging using :1234
0x0000000040000000 in ?? ()
(gdb) c
Continuing.
^C
(gdb) lx-dmesg
[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 4.14.0-rc4_pt_study-00136-gbed2c89768ba
(soleen@...ep) (gcc version 7.1.0 (crosstool-NG
crosstool-ng-1.23.0-90-g81327dd9)) #1 SMP PREEMPT Fri Oct 13 11:24:46
EDT 2017
... until the panic message is printed ...

Thank you,
Pavel