[Bug 220073] iflib panic r320049

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=220073 gitdev changed: What|Removed |Added CC||git...@kippona.net --- Comment #5 from gi

[PATCH] if_xl: Fix a possible sleep-under-mutex bug in xl_list_rx_init

The driver may sleep under a mutex, and the code path is: xl_resume [acquire the mutex] xl_init_locked xl_list_rx_init bus_dmamap_create(BUS_DMA_WAITOK) --> may sleep The possible fix of this bug is to replace "BUS_DMA_WAITOK" in bus_dmamap_create with "BUS_DMA_NOWAIT". This bug is f

Problem reports for freebsd-net@FreeBSD.org that need special attention

To view an individual PR, use: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=(Bug Id). The following is a listing of current problems submitted by FreeBSD users, which need special attention. These represent problem reports covering all versions including experimental development code and ob

[PATCH] if_ixgb: Fix possible sleep-under-mutex bugs (different from Bug 220033)

The driver may sleep under a mutex, and the function call paths are: ixgb_init [acquire the mutex] ixgb_init_locked ixgb_setup_transmit_structures bus_dma_tag_create(BUS_DMA_ALLOCNOW) --> may sleep ixgb_init [acquire the mutex] ixgb_init_locked ixgb_setup_receive_structures

[Bug 220032] [if_alc] sys/dev/alc/if_alc.c: sleep-under-mutex bugs

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=220032 Jia-Ju Bai changed: What|Removed |Added Resolution|--- |Not A Bug Status|New

[Bug 186114] net/mpd5 hangs after a certain number of users connect

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=186114 --- Comment #73 from Eugene Grosbein --- (In reply to Kubilay Kocak from comment #72) This is the patch https://bugs.freebsd.org/bugzilla/attachment.cgi?id=183537 My tests show no issues with it. It really helps and I'd like to see it inc

Re: [Bug 220032] [if_alc] sys/dev/alc/if_alc.c: sleep-under-mutex bugs

Hi, I have read the manual page ofbus_dmamap_load and other dmamap-load related functions. These calls will always return immediately and will not block for any reason. Sorry for my wrong report, please ignore it. Thanks, Jia-Ju Bai On 2017/6/18 15:47, Jia-Ju Bai wrote: Thanks a lot, your a

Re: [Bug 220032][PATCH] if_alc: Fix possible sleep-under-mutex bugs

Hi, I have read the manual page of bus_dmamap_load_mbuf_sg. This call will always return immediately and will not block for any reason. Sorry for my wrong report, please ignore it. Thanks, Jia-Ju Bai On 2017/6/18 9:04, Jia-Ju Bai wrote: The alc driver may sleep under a mutex, and the function

[Bug 220033] [if_ixgb] sys/dev/ixgb/if_ixgb.c: a sleep-under-mutex bug in ixge_get_buf

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=220033 Jia-Ju Bai changed: What|Removed |Added Resolution|--- |Not A Bug Status|New

[Bug 186114] net/mpd5 hangs after a certain number of users connect

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=186114 Kubilay Kocak changed: What|Removed |Added See Also||https://bugs.freebsd.org/bu

[Bug 186114] net/mpd5 hangs after a certain number of users connect

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=186114 --- Comment #72 from Kubilay Kocak --- (In reply to Eugene Grosbein from comment #71) Is there an issue for the syslog related changes/patch discussed with kib@ on freebsd-current? -- You are receiving this mail because: You are on the C

[BUG 220033][PATCH] if_ixgb: Fix a possible sleep-under-mutex bug in ixge_get_buf

The ixgb driver may sleep under a mutex, and the function call path is: ixgb_init [acquire the mutex] ixgb_init_locked ixgb_setup_receive_structures ixgb_allocate_receive_structures ixgb_get_buf bus_dmamap_load(BUS_DMA_WAITOK) --> may sleep The possible fix of these b

[Bug 220032][PATCH] if_alc: Fix possible sleep-under-mutex bugs

The alc driver may sleep under a mutex, and the function call paths in file "sys/dev/alc/if_alc.c" are: alc_resume [acquire the mutex] alc_init_locked alc_init_rx_ring alc_newbuf bus_dmamap_load_mbuf_sg(BUS_DMA_WAITOK) --> may sleep alc_start [acquire the mutex] alc_start_lock

Re: [Bug 220032] [if_alc] sys/dev/alc/if_alc.c: sleep-under-mutex bugs

Thanks a lot, your advice is very helpful :) I will submit a patch according to your advice, and update my bug report. By the way, I have found many similar possible bugs in network drivers in FreeBSD. And they are all caused by "BUS_DMA_WAITOK" in bus_dmamap_load and other dmamap-load related