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SubjectRe: [PATCH] Was: patch to drivers/char/serial.c to fix kernel lock-up
It still might not hurt to do more careful manipulation of the IRQ linked
list. There is another line that looks similar to the typo you found.
Is this one a mistake too? (line 1696) :

info->flags = ((state->flags & ~ASYNC_INTERNAL_FLAGS) |

-Truxton

On Sat, 5 Dec 1998, Theodore Y. Ts'o wrote:

> Ah, OK. I found the actual problem, which is a bug in set_serial_info.
> Simply avoiding the IRQ chain would have only hidden the actual
> problem, which was a one-line typo:

> - info->flags = ((state->flags & ~ASYNC_USR_MASK) |
> + info->flags = ((info->flags & ~ASYNC_USR_MASK) |

> This cleared ASYNC_INITIALIZED from info->flags and that's what caused
> startup() to get called twice.


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