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Posted to commits@nuttx.apache.org by "liamHowatt (via GitHub)" <gi...@apache.org> on 2026/01/03 20:51:43 UTC
[I] [BUG] UDP/userfs: userfs operations do not complete [nuttx]
liamHowatt opened a new issue, #17758:
URL: https://github.com/apache/nuttx/issues/17758
### Description / Steps to reproduce the issue
It's related to UDP changes.
https://github.com/apache/nuttx/pull/17699#issuecomment-3699381467
> `sim:userfs` defconfig.
>
> ```
> nsh> userfs
> nsh> ls mnt/ufstest
> ```
>
> It gets stuck.
>
> I could fix it with this change.
>
> ```diff
> diff --git a/net/udp/udp_devpoll.c b/net/udp/udp_devpoll.c
> index 4ff4994c4e..e35bc78934 100644
> --- a/net/udp/udp_devpoll.c
> +++ b/net/udp/udp_devpoll.c
> @@ -103,7 +103,7 @@ void udp_poll(FAR struct net_driver_s *dev, FAR struct udp_conn_s *conn)
>
> /* If the application has data to send, setup the UDP/IP header */
>
> - if (dev->d_len > 0)
> + if (dev->d_sndlen > 0)
> {
> udp_send(dev, conn);
> return;
> diff --git a/net/udp/udp_send.c b/net/udp/udp_send.c
> index 8b59be7fb2..f4f4539f99 100644
> --- a/net/udp/udp_send.c
> +++ b/net/udp/udp_send.c
> @@ -155,7 +155,7 @@ void udp_send(FAR struct net_driver_s *dev, FAR struct udp_conn_s *conn)
>
> ninfo("UDP payload: %d (%d) bytes\n", dev->d_sndlen, dev->d_len);
>
> - if (dev->d_len > 0)
> + if (dev->d_sndlen > 0)
> {
> #ifdef CONFIG_NET_IPv4
> #ifdef CONFIG_NET_IPv6
> ```
>
> devif_send.c sets `d_sndlen` while `d_len` remains 0.
>
> https://github.com/apache/nuttx/blob/0625b7a760c4c21f872dae823c7eb3dc7c345d7a/net/devif/devif_send.c#L116
>
> Is devif_send.c wrong for setting `d_sndlen` instead of `d_len`?
### On which OS does this issue occur?
[OS: Linux]
### What is the version of your OS?
Ubuntu 22.04
### NuttX Version
4d525505e47585419dcc0f5fd3b0c6a40f073d10
### Issue Architecture
[Arch: simulator]
### Issue Area
[Area: Networking]
### Host information
NuttX sim on x86-64 Linux Ubuntu 22.04 Docker container.
### Verification
- [x] I have verified before submitting the report.
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Re: [I] [BUG] UDP/userfs: userfs operations do not complete [nuttx]
Posted by "simbit18 (via GitHub)" <gi...@apache.org>.
simbit18 closed issue #17758: [BUG] UDP/userfs: userfs operations do not complete
URL: https://github.com/apache/nuttx/issues/17758
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Re: [I] [BUG] UDP/userfs: userfs operations do not complete [nuttx]
Posted by "HedongGao (via GitHub)" <gi...@apache.org>.
HedongGao commented on issue #17758:
URL: https://github.com/apache/nuttx/issues/17758#issuecomment-3717700368
Hi @liamHowatt I have fix this issue， and submited a pr [17785](https://github.com/apache/nuttx/pull/17785)
Thank you very much again!
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Re: [I] [BUG] UDP/userfs: userfs operations do not complete [nuttx]
Posted by "HedongGao (via GitHub)" <gi...@apache.org>.
HedongGao commented on issue #17758:
URL: https://github.com/apache/nuttx/issues/17758#issuecomment-3717687590
> [@HedongGao](https://github.com/HedongGao) please look at this problem.
OK，I have fixed this problem and submitted pr.
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Re: [I] [BUG] UDP/userfs: userfs operations do not complete [nuttx]
Posted by "liamHowatt (via GitHub)" <gi...@apache.org>.
liamHowatt commented on issue #17758:
URL: https://github.com/apache/nuttx/issues/17758#issuecomment-3733232291
Yes that fixed it! Thank YOU very much, @HedongGao!
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Re: [I] [BUG] UDP/userfs: userfs operations do not complete [nuttx]
Posted by "xiaoxiang781216 (via GitHub)" <gi...@apache.org>.
xiaoxiang781216 commented on issue #17758:
URL: https://github.com/apache/nuttx/issues/17758#issuecomment-3714473465
@HedongGao please look at this problem.
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