From: "H. Nikolaus Schaller" <hns@goldelico.com>
To: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Ralf Baechle <ralf@linux-mips.org>,
Paul Burton <paul.burton@mips.com>,
MIPS Creator CI20 Development
<mips-creator-ci20-dev@googlegroups.com>,
Discussions about the Letux Kernel
<letux-kernel@openphoenux.org>,
linux-mips@vger.kernel.org,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: MIPS: bug: gettimeofday syscall broken on CI20 board?
Date: Thu, 7 Nov 2019 17:21:13 +0100 [thread overview]
Message-ID: <18788C50-F29B-4BD7-89F6-B056FF490214@goldelico.com> (raw)
Hi,
I am trying to run v5.4-rc6 on the CI20 board (jz4780) and it
is almost ok. Except one strange thing.
If I install a v4.19.81 kernel I can initialize the
ethernet interface and dhclient works.
If I install a v5.4-rc6 kernel on exactly the same
rootfs dhclient fails with
root@letux:~# dhclient
../../../../lib/isc/unix/time.c:200: Operation not permitted
root@letux:~#
I have done some strace and the first significant difference
is that with v5.4-rc6 there is no gettimeofday syscall.
Another symptom pointing in the same direction is that
after manually assigning an IP address I can run ping
but get strange time values.
So it may be that
24640f233b46 mips: Add support for generic vDSO
did break gettimeofday when used with latest Debian Stretch
libraries. I tried to git revert but there are conflicts.
Just a side-note: both kernels work with Debian Jessie,
which likely has an older gettimeofday wrapper that
is not influenced by some subtle change.
BR and thanks,
Nikolaus Schaller
next reply other threads:[~2019-11-07 16:21 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-07 16:21 H. Nikolaus Schaller [this message]
2019-11-17 13:14 ` MIPS: bug: gettimeofday syscall broken on CI20 board H. Nikolaus Schaller
2019-11-23 7:29 ` H. Nikolaus Schaller
2019-11-26 10:52 ` MIPS: " Vincenzo Frascino
2019-11-27 13:53 ` H. Nikolaus Schaller
2019-11-27 14:29 ` H. Nikolaus Schaller
2019-11-28 12:05 ` Vincenzo Frascino
2019-11-28 12:16 ` H. Nikolaus Schaller
2019-11-28 14:04 ` Vincenzo Frascino
2019-11-28 15:10 ` H. Nikolaus Schaller
2019-11-28 11:51 ` Vincenzo Frascino
2019-11-28 12:11 ` H. Nikolaus Schaller
2019-11-28 12:21 ` Vincenzo Frascino
2019-11-28 12:33 ` H. Nikolaus Schaller
2019-11-28 13:29 ` Maarten ter Huurne
2019-11-28 13:48 ` H. Nikolaus Schaller
2019-11-28 14:01 ` Vincenzo Frascino
2019-11-28 15:42 ` H. Nikolaus Schaller
2019-11-28 15:07 ` Thomas Bogendoerfer
2019-11-28 15:41 ` H. Nikolaus Schaller
2019-11-28 15:46 ` Vincenzo Frascino
2019-11-28 16:47 ` H. Nikolaus Schaller
2019-11-29 8:57 ` Vincenzo Frascino
2019-11-29 10:53 ` Vincenzo Frascino
2019-11-29 11:51 ` H. Nikolaus Schaller
2019-12-01 3:08 ` [PATCH] Mips32 gettimeofday fix kbuild test robot
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