I commented out this patch of 876dcb and cannot reproduce the issue
afterward.
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index 2c964f5..37c0105 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -868,6 +868,13 @@ 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);
dma_deconfigure(dev);
--
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/1803942
Title:
System randomly hangs during suspend when mei_wdt is loaded
Status in linux package in Ubuntu:
Confirmed
Bug description:
Problem description:
System randomly hangs during suspend when mei_wdt is loaded.
Platform:
Intel Dawson Canyon I5 (NUC7i5DNHE) and I7 (NUC7i7DNHE)
Test procedure:
1. Install Ubuntu 18.04 and do apt full-upgrade
2. Enable mei_wdt:
$ sudo modprobe mei_wdt
3. Do system S3 test:
$ sudo systemctl suspend
or
$ sudo rtcwake -v -m mem -s 15
4. Afterward, I noticed that somehow system will hang during
suspend/resume.
Expect result:
Suspend/resume won't impact system.
Actual result:
System will hang during S3 test.
Additional info:
- BIOS version: V57
- Another i3 platform (NUC7i3DNHNC) doesn't have this issue.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1803942/+subscriptions
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