lib: revert addition of vtysh_flush() call in vty_out() #19109
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This partially reverts commit 9112fb3. It is not permissible/possible to call vtysh_flush() from vty_out() as it may unexpectedly close the vty. This is only permitted to happen during a VTY event triggered from the event loop, not from a vty_out() call in a random place mid-code. The socket buffer size changes are left in place. Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
mjstapp
reviewed
Jul 1, 2025
| @@ -346,17 +346,8 @@ int vty_out(struct vty *vty, const char *format, ...) | |||
| case VTY_SHELL_SERV: | |||
| case VTY_FILE: | |||
| default: | |||
| vty->vty_buf_size_accumulated += strlen(filtered); | |||
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can we do something more limited, just for instance removing the direct call to "vtysh_flush" ? We might well want to keep the counters that are part of the progressive send logic, for example.
mjstapp
approved these changes
Jul 8, 2025
|
@Mergifyio backport dev/10.4 stable/10.3 |
✅ Backports have been created
|
This was referenced Jul 8, 2025
mjstapp
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lib: revert addition of vtysh_flush() call in vty_out() (backport #19109)
ton31337
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Jul 9, 2025
lib: revert addition of vtysh_flush() call in vty_out() (backport #19109)
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This reverts the
vtysh_flush()part of #16672 since it is just plain not permissible to do that. There's a cascaded partial revert of #17571, but that was only a minor adjustment and it remains intact in the general sense.A better/correct fix would be to do something like engineering a
vtysh_try_flush()function; but I'd prefer to not do that on stable versions, so here's a revert to get back to functionally correct before we take another go at the memory spike problem.cf. #19040 for related discussion (this revert should make that PR unnecessary)