Summary: | serial console as qemu-kvm guest stops responding freezes on duplex I/O | ||
---|---|---|---|
Product: | Base System | Reporter: | Taketo Kabe <bkabe> |
Component: | kern | Assignee: | freebsd-bugs (Nobody) <bugs> |
Status: | Closed Works As Intended | ||
Severity: | Affects Only Me | ||
Priority: | --- | ||
Version: | 10.1-RELEASE | ||
Hardware: | amd64 | ||
OS: | Any |
Description
Taketo Kabe
2014-11-26 01:36:28 UTC
kill -HUP ing the getty doesn't change anything. kill -KILL ing the getty results in unkillable getty going CPU 100% and not exitting. 0 598 1 0 102 0 14488 1980 - REs+ u0- 0:43.47 /usr/libexec/getty 3wire.9600 ttyu0 spinlock or something? Workaround: set hw.broken_txfifo=1 in /boot/loader.conf, /boot/device.hints, wherever suites. hw.broken_txfifo was added in FreeBSD 8.4 for workaround of QEMU UART emulation bug. |