Norman Feske 5138aeba80 libc: fix nested monitor call in 'symlink' ...

The symlink implementation wrongly constructed a 'Sync' object within
the context of a monitor call. The 'Sync' constructor indirectly
depended on libc I/O for obtaining the current time, ultimately
resulting in a nested attempt of a monitor call. This could be
reproduced via the base.run script:

  $ cd /home
  $ ln -s a b

The 'ln' command resulted in the following log message:

  [init -> /bin/bash -> 7] Error: deadlock ahead, mutex=0x10ff8c70, return ip=0x500583a7

The patch fixes the problem by splitting the single monitor call into
two monitor calls and moving the construction of the 'Sync' object
in-between both monitor calls, thereby executing the constructor at the
libc application level.

Fixes #4219

2021-07-28 11:25:21 +02:00

..

app

usb_webcam: package recipes

2021-06-25 11:41:44 +02:00

drivers/framebuffer/vesa

Turn framebuffer drivers into capture clients

2020-07-13 11:33:15 +02:00

lib

libc: fix nested monitor call in 'symlink'

2021-07-28 11:25:21 +02:00

server/system_rtc

Replace server/acpi_input with app/acpi_event

2020-08-25 11:49:44 +02:00

test

lx_fs: support for unlink

2021-06-25 11:41:43 +02:00