From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Eugene Surovegin <surovegin@google.com>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>
Subject: [ 04/14] powerpc/hvsi: Increase handshake timeout from 200ms to 400ms.
Date: Thu, 5 Sep 2013 13:28:15 -0700 [thread overview]
Message-ID: <20130905202614.921504590@linuxfoundation.org> (raw)
In-Reply-To: <20130905202614.354156084@linuxfoundation.org>
3.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Eugene Surovegin <ebs@ebshome.net>
commit d220980b701d838560a70de691b53be007e99e78 upstream.
This solves a problem observed in kexec'ed kernel where 200ms timeout is
too short and bootconsole fails to initialize. Console did eventually
become workable but much later into the boot process.
Observed timeout was around 260ms, but I decided to make it a little bigger
for more reliability.
This has been tested on Power7 machine with Petitboot as a primary
bootloader and PowerNV firmware.
Signed-off-by: Eugene Surovegin <surovegin@google.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/tty/hvc/hvsi_lib.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/tty/hvc/hvsi_lib.c
+++ b/drivers/tty/hvc/hvsi_lib.c
@@ -341,8 +341,8 @@ void hvsilib_establish(struct hvsi_priv
pr_devel("HVSI@%x: ... waiting handshake\n", pv->termno);
- /* Try for up to 200s */
- for (timeout = 0; timeout < 20; timeout++) {
+ /* Try for up to 400ms */
+ for (timeout = 0; timeout < 40; timeout++) {
if (pv->established)
goto established;
if (!hvsi_get_packet(pv))
next prev parent reply other threads:[~2013-09-05 20:28 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-05 20:28 [ 00/14] 3.4.61-stable review Greg Kroah-Hartman
2013-09-05 20:28 ` [ 01/14] jfs: fix readdir cookie incompatibility with NFSv4 Greg Kroah-Hartman
2013-09-05 20:28 ` [ 02/14] ALSA: opti9xx: Fix conflicting driver object name Greg Kroah-Hartman
2013-09-05 20:28 ` [ 03/14] powerpc: Work around gcc miscompilation of __pa() on 64-bit Greg Kroah-Hartman
2013-09-05 20:28 ` Greg Kroah-Hartman [this message]
2013-09-05 20:28 ` [ 05/14] regmap: silence GCC warning Greg Kroah-Hartman
2013-09-05 20:28 ` [ 06/14] drivers/base/memory.c: fix show_mem_removable() to handle missing sections Greg Kroah-Hartman
2013-09-05 20:28 ` [ 07/14] drm/vmwgfx: Split GMR2_REMAP commands if they are to large Greg Kroah-Hartman
2013-09-05 20:28 ` [ 08/14] drm/i915: ivb: fix edp voltage swing reg val Greg Kroah-Hartman
2013-09-05 20:28 ` [ 09/14] SUNRPC: Fix memory corruption issue on 32-bit highmem systems Greg Kroah-Hartman
2013-09-05 20:28 ` [ 10/14] ath9k_htc: Restore skb headroom when returning skb to mac80211 Greg Kroah-Hartman
2013-09-05 20:28 ` [ 11/14] iwl4965: fix rfkill set state regression Greg Kroah-Hartman
2013-09-05 20:28 ` [ 12/14] ACPI / EC: Add ASUSTEK L4R to quirk list in order to validate ECDT Greg Kroah-Hartman
2013-09-05 20:28 ` [ 13/14] target: Fix trailing ASCII space usage in INQUIRY vendor+model Greg Kroah-Hartman
2013-09-05 20:28 ` [ 14/14] SCSI: sg: Fix user memory corruption when SG_IO is interrupted by a signal Greg Kroah-Hartman
2013-09-05 22:56 ` [ 00/14] 3.4.61-stable review Guenter Roeck
2013-09-06 16:39 ` Greg Kroah-Hartman
2013-09-06 17:58 ` Guenter Roeck
2013-09-06 17:47 ` Shuah Khan
2013-09-06 18:46 ` Greg Kroah-Hartman
2013-09-06 22:23 ` Shuah Khan
2013-09-06 23:11 ` Greg Kroah-Hartman
2013-09-06 23:24 ` Shuah Khan
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