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Diffstat (limited to 'results/classifier/deepseek-2-tmp/output/device/1399943')
| -rw-r--r-- | results/classifier/deepseek-2-tmp/output/device/1399943 | 29 |
1 files changed, 0 insertions, 29 deletions
diff --git a/results/classifier/deepseek-2-tmp/output/device/1399943 b/results/classifier/deepseek-2-tmp/output/device/1399943 deleted file mode 100644 index 1e8cf2c6..00000000 --- a/results/classifier/deepseek-2-tmp/output/device/1399943 +++ /dev/null @@ -1,29 +0,0 @@ - -qemu-system-sparc loses serial console data on EAGAIN - -When running a guest OS with a serial console under -"qemu-system-sparc -nographic", parts of the serial console output -are sometimes lost. - -This happens when a write() to standard output by qemu returns EAGAIN, -as may be the case when the guest is generating console output faster -than the tty (or pty/pipe/socket, etc.) connected to qemu's standard -output accepts it. The bug affects all releases of qemu since 1.5, -which was the first version to set stdout to O_NONBLOCK mode. Version -1.4.2 and earlier work correctly. - -To reproduce the bug, you will need a guest OS configured with a -serial console, and a host with a slow tty. The attached shell script -"sparc-test.sh" does this by using Aboriginal Linux as the serial -console guest, and a pty controlled by a Python script and the -"pexpect" Python module as the slow tty. A "seq" command is sent -to the guest to generate 100,000 lines of output containing sequential -integers, and the output is checked for gaps. The script limits the -tty output rate by occasionally sleeping for 1/10 of a second. - -This bug was originally reported against qemu-system-i386 as -bug #1335444, and has since been fixed in qemu-system-i386, -but remains in qemu-system-sparc as of today's git sources -(d00e6cddc220de993573dfb5fd160ac72ccd49ab). I am opening -this separate bug for the sparc case because I was asked -to do so by Paolo Bonzini in #1335444. \ No newline at end of file |