* HVC console breakage
@ 2012-11-14 2:57 Anton Blanchard
2012-11-14 4:13 ` Benjamin Herrenschmidt
0 siblings, 1 reply; 3+ messages in thread
From: Anton Blanchard @ 2012-11-14 2:57 UTC (permalink / raw)
To: jslaby, benh, paulus, gregkh, alan; +Cc: linuxppc-dev
Hi,
Commit bdb498c20040 (TTY: hvc_console, add tty install) breaks HVC on
ppc64. It looks a bit like a refcounting issue and we end up releasing
the tty. I haven't had a change to look closer yet.
Anton
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: HVC console breakage
2012-11-14 2:57 HVC console breakage Anton Blanchard
@ 2012-11-14 4:13 ` Benjamin Herrenschmidt
0 siblings, 0 replies; 3+ messages in thread
From: Benjamin Herrenschmidt @ 2012-11-14 4:13 UTC (permalink / raw)
To: Anton Blanchard
Cc: linuxppc-dev, paulus, gregkh, Paul Mackerras, jslaby, alan
On Wed, 2012-11-14 at 13:57 +1100, Anton Blanchard wrote:
> Hi,
>
> Commit bdb498c20040 (TTY: hvc_console, add tty install) breaks HVC on
> ppc64. It looks a bit like a refcounting issue and we end up releasing
> the tty. I haven't had a change to look closer yet.
Adding Paulus who is looking into it. So far what we observe is that
something (possibly a close() on a hvc tty by userspace) causes the port
to be destroyed permanently. Typically hits with fedora 17.
Cheers,
Ben.
^ permalink raw reply [flat|nested] 3+ messages in thread
* hvc_console breakage
@ 2010-03-20 13:10 Anton Blanchard
0 siblings, 0 replies; 3+ messages in thread
From: Anton Blanchard @ 2010-03-20 13:10 UTC (permalink / raw)
To: amit.shah, alan, rusty, gregkh; +Cc: linuxppc-dev
Hi,
I haven't tracked down why, but e74d098c66543d0731de62eb747ccd5b636a6f4c
(hvc_console: Fix race between hvc_close and hvc_remove) is causing my PowerPC
box to hang during boot, right when init starts.
Anton
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2012-11-14 4:13 UTC | newest]
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2012-11-14 2:57 HVC console breakage Anton Blanchard
2012-11-14 4:13 ` Benjamin Herrenschmidt
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2010-03-20 13:10 hvc_console breakage Anton Blanchard
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