Bug 14180
| Summary: | Lockup in pty_write/tty_wakeup when using PPTP | ||
|---|---|---|---|
| Product: | Drivers | Reporter: | Andrey Rahmatullin (wrar) |
| Component: | Other | Assignee: | drivers_other |
| Status: | CLOSED DUPLICATE | ||
| Severity: | high | ||
| Priority: | P1 | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Kernel Version: | 2.6.31 | Subsystem: | |
| Regression: | Yes | Bisected commit-id: | |
| Attachments: | vsftpd stack trace | ||
Created attachment 23096 [details] vsftpd stack trace Commit ac89a9174decf343de049a06fad75681f71890eb broke my PPTP: when the box tries to send large data using wide bandwidth (I tried vsftpd and nginx and speed about 500 Kbytes/s and faster), the box locks up after less than second. SysRq+P shows vsftpd or softirqd (in case of nginx) locked in tty_wakeup. One such backtrace is attached. Reverting ac89a9174decf343de049a06fad75681f71890eb fixes this regression.