After revert commit in Focal and oem-5.6, this issue can be fixed. >From b1cc82bb294939c76dc6b61146e960bd9f810222 Mon Sep 17 00:00:00 2001 From: Aaron Ma <[email protected]> Date: Fri, 28 Aug 2020 11:03:46 +0800 Subject: [PATCH] Revert "UBUNTU: SAUCE: vfio -- release device lock before userspace requests"
This reverts part of commit 240766c8b029a4445f632f822a744c6ae34c48e3. Part of changes break stress S3 test on ttm driver with radeon. Error log: [TTM] Erroneous page count. Leaking pages. Signed-off-by: Aaron Ma <[email protected]> --- drivers/base/dd.c | 7 ------- 1 file changed, 7 deletions(-) diff --git a/drivers/base/dd.c b/drivers/base/dd.c index b4f9e99f7372..b25bcab2a26b 100644 --- a/drivers/base/dd.c +++ b/drivers/base/dd.c @@ -1135,13 +1135,6 @@ static void __device_release_driver(struct device *dev, struct device *parent) dev->bus->remove(dev); else if (drv->remove) drv->remove(dev); - /* - * A concurrent invocation of the same function might - * have released the driver successfully while this one - * was waiting, so check for that. - */ - if (dev->driver != drv) - return; device_links_driver_cleanup(dev); -- ** Tags added: oem-priority originate-from-1890075 sutton -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1893609 Title: System hang when stress S3 on radeon with TTM Status in HWE Next: New Status in linux package in Ubuntu: New Bug description: [Summary] System got hang during executing the S3-30-cycle test case. [Steps to reproduce] $ sudo checkbox-support-fwts_test -l /home/u/suspend_30_cycles -f none -s s3 --s3-device-check --s3-device-check-delay=60 --s3-sleep-delay=60 --s3-multiple=30 [Expected result] The test script should be finished smoothly. [Actual result] System got hang at the 7th or 8th S3 resumed back. [Failure rate] 100% [Additional information] CPU: Intel(R) Core(TM) i5-10600 CPU @ 3.30GHz (12x) GPU: 00:02.0 Display controller [0380]: Intel Corporation Device [8086:9bc8] 01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Oland [Radeon HD 8570 / R7 240/340 OEM] [1002:6611] (rev 87) kernel-version: 5.6.0-1020-oem To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1893609/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
