printf/vsnprintf crashes while printing float values

Joel Sherrill
Mon Jan 18 14:18:15 GMT 2021

On Mon, Jan 18, 2021, 3:51 AM zhongcai.guo--- via Newlib <> wrote:

> Hi,
> I run RTEMS system on my Xilinx Zync7000 hardware but printf/vsnprintf
> crash my system in interrupt. I searched long time in Google, and it seems
> to be an issue in Newlib than RTEMS(i guess). Therefore i want to figure
> out whether it
> is a fixed issued in Newlib but don't get the place to search closed/fixed
> bug. So i have no idea but send the email to ask for help. Any hints about
> the issue would be appreciate.

Does the thread doing the printing have the floating point attribute?
Otherwise, the flu is disabled


> Best regards
> Ceasar Guo
> 运控部 / MC
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