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From: Paul Burton <paulburton@kernel.org>
To: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: vincenzo.frascino@arm.com, paulburton@kernel.org, hns@goldelico.com
Cc: mips-creator-ci20-dev@googlegroups.com,
	letux-kernel@openphoenux.org, linux-mips@vger.kernel.org,
	linux-kernel@vger.kernel.org
Cc: linux-mips@vger.kernel.org
Subject: Re: [PATCH] mips: Fix gettimeofday() in the vdso library
Date: Mon, 02 Dec 2019 11:48:19 -0800	[thread overview]
Message-ID: <5de56a84.1c69fb81.e0dc8.14af@mx.google.com> (raw)
In-Reply-To: <20191129143658.12224-1-vincenzo.frascino@arm.com>

Hello,

Vincenzo Frascino wrote:
> The libc provides a discovery mechanism for vDSO library and its
> symbols. When a symbol is not exposed by the vDSOs the libc falls back
> on the system calls.
> 
> With the introduction of the unified vDSO library on mips this behavior
> is not honored anymore by the kernel in the case of gettimeofday().
> 
> The issue has been noticed and reported due to a dhclient failure on the
> CI20 board:
> 
> root@letux:~# dhclient
> ../../../../lib/isc/unix/time.c:200: Operation not permitted
> root@letux:~#
> 
> Restore the original behavior fixing gettimeofday() in the vDSO library.

Applied to mips-fixes.

> commit 7d2aa4bb90f5
> https://git.kernel.org/mips/c/7d2aa4bb90f5
> 
> Reported-by: H. Nikolaus Schaller <hns@goldelico.com>
> Tested-by: H. Nikolaus Schaller <hns@goldelico.com> # CI20 with JZ4780
> Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
> Signed-off-by: Paul Burton <paulburton@kernel.org>

Thanks,
    Paul

[ This message was auto-generated; if you believe anything is incorrect
  then please email paulburton@kernel.org to report it. ]

      parent reply	other threads:[~2019-12-02 19:48 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-29 14:36 [PATCH] mips: Fix gettimeofday() in the vdso library Vincenzo Frascino
2019-11-29 14:52 ` H. Nikolaus Schaller
2019-11-29 14:58   ` Vincenzo Frascino
2019-11-29 15:09     ` H. Nikolaus Schaller
2019-12-02 19:48 ` Paul Burton [this message]

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