Re: [PATCH 0/7] Uprobes: Support SDT markers having reference count (semaphore)

[Oleg Nesterov]

Hello,

I am travelling till the end of the next week, can't read this version
until I return. Just one question,

On 06/06, Ravi Bangoria wrote:
>
>  1. One of the major reason was the deadlock between uprobe_lock and
>  mm->mmap inside trace_uprobe_mmap(). That deadlock was not easy to fix

Could you remind what exactly was wrong?

I can't find your previous email about this problem, but iirc you didn't
explain the deadlock in details, just copied some traces from lockdep...

Oleg.