After a while, an error message "tcp_write_wakeup: fragment failed"
appears, if I have the message level set low enough.
I made a patch to give SysRq-N which terminates the current process. This
allows me to recover the system when the above happens, instead of just
pressing Reset.
I won't post the patch again; I expect it is available on linux-hq.
On Tue, 19 Aug 1997, Jeff DeFouw wrote:
> * Happens at any time, uptime doesn't seem to matter.
> * Usually happens during low or no activity (this time with X was my only
> exception)
> * Hard disk activity stops except for maybe a few clicks.
> * Kernel VT switching, SysRq, and debug output still works.
> * Can continue to type on last used VT if input is not handled by
> a process, all other VT's will not accept input at all.
> * Scheduling: Control-ScrollLock output displayed about 6 tasks in Run
> state, "current" doesn't change.
> * Plenty of free cache, buffers, memory, and swap during freeze,
> according to Shift-ScrollLock.
> * No Oops
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