** Description changed:
[Impact]
Programs previously using nanosleep syscall and with glibc 31's update
being switched to use clock_nanosleep broke due to clock_nanosleep using
CLOCK_REALTIME returns EINVAL in wsl1.
[Test Case]
Run sleep in WSL1 on Windows 10 2004 or older version.
The fixed version works correctly, the not fixed version breaks in Focal.
+ Run the following program under strace and observe that the fallback is
+ applied only when it is needed:
+
+ #include <time.h>
+ #include <stdio.h>
+
+ int main (int argc, char ** argv) {
+ struct timespec ts, rem;
+ clock_gettime(CLOCK_REALTIME, &ts);
+ printf("Sleep 1.5s with TIMER_ABSTIME\n");
+ ts.tv_nsec += 500000000L;
+ if (ts.tv_nsec > 1000000000L) {
+ ts.tv_nsec -= 1000000000L;
+ ts.tv_sec += 1;
+ }
+ ts.tv_sec += 1;
+ clock_nanosleep(CLOCK_REALTIME, TIMER_ABSTIME, &ts, &rem);
+
+ printf("sleep 1.2s\n");
+ ts.tv_sec = 1;
+ ts.tv_nsec = 200000000L;
+ clock_nanosleep(CLOCK_REALTIME, 0, &ts, &rem);
+
+ printf("sleep 1.2s with CLOCK_MONOTONIC\n");
+ ts.tv_sec = 1;
+ ts.tv_nsec = 200000000L;
+ clock_nanosleep(CLOCK_MONOTONIC, 0, &ts, &rem);
+
+ printf("invalid sleep -1s (+200ms)\n");
+ ts.tv_nsec = 200000000L;
+ ts.tv_sec = -1;
+ clock_nanosleep(CLOCK_REALTIME, 0, &ts, &rem);
+
+ printf("invalid sleep 1s (-200ms)\n");
+ ts.tv_nsec = -200000000L;
+ ts.tv_sec = 1;
+ clock_nanosleep(CLOCK_REALTIME, 0, &ts, &rem);
+
+ printf("invalid sleep 0s (+1.200ms as nsec)\n");
+ ts.tv_nsec = 1200000000L;
+ ts.tv_sec = 1;
+ clock_nanosleep(CLOCK_REALTIME, 0, &ts, &rem);
+
+ }
+
[Regression Potential]
The fix is falling back to using monotonic time ... FIXME
-
[Original Bug Text]
Right now I am trying Ubuntu 20.04 on WSL and I noticed that when I run
htop in WSL 1st generation, it is completely blank:
https://user-images.githubusercontent.com/15316889/78563857-31697b00
-784e-11ea-9f21-338a6cf8cb23.gif
The previous version (htop 2.1.0) works without any issue.
I am using htop 2.2.0-2build1 on Ubuntu 20.04 on WSL1 on Windows 10
build 19592.1001.
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https://bugs.launchpad.net/bugs/1871129
Title:
htop is blank when using in focal in wsl1
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