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SubjectRe: [PATCH v4 0/4] perf timechart io mode
> For some reason, in Jiri's trace we see exit from sys_read with 2,
> and then again exit from sys_read with -EAGAIN:
> xterm 32028 [000] 43390.908909: syscalls:sys_enter_read: fd: 0x00000004, buf: 0x02076e8c, count: 0x0
> xterm 32028 [000] 43390.908917: syscalls:sys_exit_read: 0x2
> xterm 32028 [000] 43390.908982: syscalls:sys_exit_read: 0xfffffffffffffff5
>
> I'm not sure how it is possible (either we lost sys_enter, or timestamp
> of seconds -EAGAIN is wrong?). I think we might just convert this error
> to a warning (we couldn't reproduce it again).
> Should I resend the whole series (preferred) or add another patch on
> top?

Or probably left it as is, because perf.data is really weird...


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