From: Alistair Francis <alistair23@gmail.com>
To: David Abdurachmanov <david.abdurachmanov@gmail.com>, zongbox@gmail.com
Cc: "linux-riscv@lists.infradead.org"
<linux-riscv@lists.infradead.org>,
"palmer@sifive.com" <palmer@sifive.com>,
Alistair Francis <Alistair.Francis@wdc.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] riscv: Partially revert "Remove stat64 family from default syscall set"
Date: Thu, 7 Feb 2019 15:12:02 -0800 [thread overview]
Message-ID: <CAKmqyKPj5fCQR_sVWDkkMmo28=GEpJ71VcvA+nZb0YzTd0J+Ug@mail.gmail.com> (raw)
In-Reply-To: <CAEn-LTrQtL3+MQSDKQmBBx4PJGox4r5yEyHxh35VVd_D4dg0Dg@mail.gmail.com>
On Thu, Feb 7, 2019 at 3:04 PM David Abdurachmanov
<david.abdurachmanov@gmail.com> wrote:
>
> On Thu, Feb 7, 2019 at 11:56 PM Alistair Francis
> <Alistair.Francis@wdc.com> wrote:
> >
> > To fix systemd/sysVinit crashes enable __ARCH_WANT_STAT64.
> >
> > systemd failed to start with this error for 32-bit RISC-V:
> > [ 2.833864] Run /sbin/init as init process
> > /sbin/init: error while loading shared libraries: libsystemd-shared-239.so: cannot stat shared object: Error 38
> > [ 2.933593] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00007f00
> > [ 2.934120] CPU: 0 PID: 1 Comm: init Not tainted 5.0.0-rc4-yoctodev-standard #1
> > [ 2.934589] Call Trace:
> > [ 2.934919] [<c0048a30>] walk_stackframe+0x0/0xa0
> > [ 2.935243] [<c0048c14>] show_stack+0x28/0x32
> > [ 2.935518] [<c05fa418>] dump_stack+0x68/0x88
> > [ 2.935788] [<c004de48>] panic+0xf0/0x252
> > [ 2.936041] [<c0051780>] do_exit+0x7de/0x7fc
> > [ 2.936387] [<c00517f4>] do_group_exit+0x2a/0x82
> > [ 2.936674] [<c005185e>] __wake_up_parent+0x0/0x22
> > [ 2.936982] [<c00475fa>] ret_from_syscall+0x0/0xe
> > [ 2.937673] ---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x00007f00 ]---
> >
> > sysVinit had a similar problem as well. By enabling __ARCH_WANT_STAT64
> > for 32-bit RISC-V the problem disapears and 32-bit RISC-V is able to
> > boot.
>
> Hi,
>
> This is expected change for riscv32. More details here:
> http://lists.infradead.org/pipermail/linux-riscv/2018-November/002062.html
Thanks for the explanation.
+ Zong
Do you know what the statx implementation is in the 32-bit RISC-V
glibc submission?
Alistair
>
> david
>
> >
> > Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
> > ---
> > This was tested with this fork of glibc to enable 32-bit RISC-V support:
> > https://github.com/riscv/riscv-glibc/tree/riscv-glibc-2.29
> > commit: 04fdd476160a55792a75375ba2bf56c761f811c2
> >
> > I'm not sure if this is a glibc problem or a kernel problem, but this
> > commit caused the breakage between the 4.19 and 4.20 kernel so I'm
> > sending out a patch. Let me know your thoughts
> >
> > arch/riscv/include/uapi/asm/unistd.h | 3 +++
> > 1 file changed, 3 insertions(+)
> >
> > diff --git a/arch/riscv/include/uapi/asm/unistd.h b/arch/riscv/include/uapi/asm/unistd.h
> > index 1f3bd3ebbb0d..031b7d78e11c 100644
> > --- a/arch/riscv/include/uapi/asm/unistd.h
> > +++ b/arch/riscv/include/uapi/asm/unistd.h
> > @@ -20,6 +20,9 @@
> > #endif /* __LP64__ */
> >
> > #include <asm-generic/unistd.h>
> > +#if __BITS_PER_LONG == 32
> > +#define __ARCH_WANT_STAT64
> > +#endif
> >
> > /*
> > * Allows the instruction cache to be flushed from userspace. Despite RISC-V
> > --
> > 2.20.1
> >
> >
> > _______________________________________________
> > linux-riscv mailing list
> > linux-riscv@lists.infradead.org
> > http://lists.infradead.org/mailman/listinfo/linux-riscv
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prev parent reply other threads:[~2019-02-07 23:12 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-07 22:55 [PATCH] riscv: Partially revert "Remove stat64 family from default syscall set" Alistair Francis
2019-02-07 23:03 ` David Abdurachmanov
2019-02-07 23:12 ` Alistair Francis [this message]
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