Bug 215594
| Summary: | Unable to transfer big files to Nokia N9 and Jolla phone | ||
|---|---|---|---|
| Product: | Drivers | Reporter: | Paul Menzel (pmenzel+bugzilla.kernel.org) |
| Component: | Bluetooth | Assignee: | linux-bluetooth (linux-bluetooth) |
| Status: | NEW --- | ||
| Severity: | normal | CC: | luiz.dentz, pmenzel+bugzilla.kernel.org, tedd.an |
| Priority: | P1 | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Kernel Version: | 5.16-rc1 | Subsystem: | |
| Regression: | No | Bisected commit-id: | |
| Attachments: |
Output of `btmon --write /dev/shm/btmon-trace.log`
Output of `btmon --write /dev/shm/btmon-trace-small-file.log` Output of `/usr/libexec/bluetooth/obexd -dn` |
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Description
Paul Menzel
2022-02-11 16:03:42 UTC
> ACL Data RX: Handle 256 flags 0x02 dlen 15
> #102
> [hci0] 40.702432
Channel: 65 len 11 [PSM 3 mode Basic (0x00)] {chan 0}
RFCOMM: Unnumbered Info with Header Check (UIH) (0xef)
Address: 0x49 cr 0 dlci 0x12
Control: 0xef poll/final 0
Length: 7
FCS: 0x14
a0 00 07 10 00 7f ff 14 ........
= obexctl: [^A^BNEW^A^B] Session /org/bluez/obex/client/session0 [default] 40.703445
= obexctl: [^A^BNEW^A^B] ObjectPush /org/bluez/obex/client/session0 40.703761
= obexctl: Connection successful 40.703803
= obexctl: send /lib/systemd/systemd 46.405464
= obexctl: Attempting to send /lib/systemd/systemd to /org/bluez/obex/client/session0 46.405516
= obexctl: [^A^BNEW^A^B] Transfer /org/bluez/obex/client/session0/transfer0 46.407098
= obexctl: Transfer /org/bluez/obex/client/session0/transfer0 46.407161
= obexctl: Status: queued 46.40>
= obexctl: Name: systemd 46.40>
= obexctl: Size: 1845808 46.40>
= obexctl: Filename: /lib/systemd/systemd 46.40>
= obexctl: Session: /org/bluez/obex/client/session0 46.40>
= obexctl: [^A^BCHG^A^B] Transfer /org/bluez/obex/client/session0/transfer0 Status: active 47.629711
= obexctl: [^A^BCHG^A^B] Transfer /org/bluez/obex/client/session0/transfer0 Transferred: 32737 (@32KB/s 00:55) 47.630411
= obexctl: [^A^BCHG^A^B] Transfer /org/bluez/obex/client/session0/transfer0 Status: error 106.630035
= obexctl: [^A^BDEL^A^B] Transfer /org/bluez/obex/client/session0/transfer0
So the transfer apparently didn't even start, with what system are you traying to communicate to?
Thank you for looking into this.
> So the transfer apparently didn't even start, with what system are you
> traying to communicate to?
Nokia N9 (MeeGo/Harmattan)
Just to also document it here, commit 81be03e026dc (Bluetooth: RFCOMM: Replace use of memcpy_from_msg with bt_skb_sendmmsg) introduced that regression, and reverting this fixes the issue. [1]: https://lore.kernel.org/linux-bluetooth/def03073-3fab-3b34-6ffc-702bb1b3758f@leemhuis.info/T/#m04445e920610d42a9510d0f6d97afa5376e4a3ca [2]: https://lore.kernel.org/linux-bluetooth/20220208221911.57058-1-pmenzel@molgen.mpg.de/ Created attachment 300441 [details]
Output of `btmon --write /dev/shm/btmon-trace-small-file.log`
btmon log, when sending a small file (3 bytes):
$ more test.txt
bt
I tested with latest BlueZ(HEAD: https://git.kernel.org/pub/scm/bluetooth/bluez.git/commit/?id=002c0c9eda0052a834ddd4b63026f534b7d52f14) without reverting the commits in #3(https://bugzilla.kernel.org/show_bug.cgi?id=215594#c3) and RFCOMM worked fine. I tested both Windows 10 and MAC OS and was able to send and receive the files. Please try it with the latest BlueZ and see if it makes any difference. Thank you for looking into this. Did you test with MeeGo/Harmattan or Sailfish OS? Also, it wouldn’t make a difference, as Linux’ no-regression-policy requires, that the everything keeps working with the existing user space. (As written in the mailing list thread, with the Android phone Galaly M32 the file transfer succeeded.) (In reply to Paul Menzel from comment #6) > Thank you for looking into this. Did you test with MeeGo/Harmattan or > Sailfish OS? > > Also, it wouldn’t make a difference, as Linux’ no-regression-policy > requires, that the everything keeps working with the existing user space. How about getting some logs from obexd then? Stop obexd.service and start with obexd/src/obexd -dn Created attachment 300461 [details]
Output of `/usr/libexec/bluetooth/obexd -dn`
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