#9601: [attansic_l1] crashes on boot
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Reporter: bob_ok | Owner: 3dEyes
Type: bug | Status: new
Priority: normal | Milestone: R1
Component: Drivers/Network/attansic_l1 | Version: R1/Development
Resolution: | Keywords:
Blocked By: | Blocking:
Has a Patch: 0 | Platform: x86
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Comment (by korli):
Relevant lines:
{{{
[attansic_l1] (age) Using 1 MSI messages.
[attansic_l1] (age) bus_alloc_resource(1, [1], 0x0, 0xffffffff, 0x1,0x2)
[attansic_l1] (age) Read request size : 512 bytes.
[attansic_l1] (age) TLP payload size : 128 bytes.
[attansic_l1]
(/home/korli/githaiku/haiku/src/libs/compat/freebsd_network/fbsd_busdma_x86.c:323)
bus_dma_tag_create returned tag 0xe166e418 tag flags 0x0 error 0
[attansic_l1]
(/home/korli/githaiku/haiku/src/libs/compat/freebsd_network/fbsd_busdma_x86.c:323)
bus_dma_tag_create returned tag 0xe165c568 tag flags 0x40 error 0
[attansic_l1]
(/home/korli/githaiku/haiku/src/libs/compat/freebsd_network/fbsd_busdma_x86.c:323)
bus_dma_tag_create returned tag 0xe165c478 tag flags 0x40 error 0
[attansic_l1]
(/home/korli/githaiku/haiku/src/libs/compat/freebsd_network/fbsd_busdma_x86.c:323)
bus_dma_tag_create returned tag 0xe165c3d8 tag flags 0x40 error 0
[attansic_l1]
(/home/korli/githaiku/haiku/src/libs/compat/freebsd_network/fbsd_busdma_x86.c:323)
bus_dma_tag_create returned tag 0xe165c068 tag flags 0x40 error 0
[attansic_l1]
(/home/korli/githaiku/haiku/src/libs/compat/freebsd_network/fbsd_busdma_x86.c:323)
bus_dma_tag_create returned tag 0xe1667c50 tag flags 0x40 error 0
[attansic_l1]
(/home/korli/githaiku/haiku/src/libs/compat/freebsd_network/fbsd_busdma_x86.c:535)
bus_dmamem_alloc: tag 0xe165c568 tag flags 0x40 error 0
[attansic_l1]
(/home/korli/githaiku/haiku/src/libs/compat/freebsd_network/fbsd_busdma_x86.c:728)
bus_dmamap_load: tag 0xe165c568 tag flags 0x40 error 0 nsegs 1
[attansic_l1]
(/home/korli/githaiku/haiku/src/libs/compat/freebsd_network/fbsd_busdma_x86.c:535)
bus_dmamem_alloc: tag 0xe165c478 tag flags 0x40 error 0
[attansic_l1]
(/home/korli/githaiku/haiku/src/libs/compat/freebsd_network/fbsd_busdma_x86.c:728)
bus_dmamap_load: tag 0xe165c478 tag flags 0x40 error -2147454972 nsegs 2
[attansic_l1] (age) could not load DMA'able memory for Rx ring.
[attansic_l1] (age) PCI VPD capability not found!
}}}
-2147454972 => EFBIG this hints to an [http://cgit.haiku-
os.org/haiku/tree/src/libs/compat/freebsd_network/fbsd_busdma_x86.c#n687
exit] in the loop of _bus_dmamap_load_buffer().
We alloc only one segment [http://cgit.haiku-os.org/haiku/tree/src/add-
ons/kernel/drivers/network/attansic_l1/dev/age/if_age.c#n901 if_age.c line
901] and that alloc uses a simple malloc which could deliver allocations
on a boundary [http://cgit.haiku-
os.org/haiku/tree/src/libs/compat/freebsd_network/fbsd_busdma_x86.c#n515
fbsd_busdma_x86.c line 515].
However the code at [http://cgit.haiku-
os.org/haiku/tree/src/libs/compat/freebsd_network/fbsd_busdma_x86.c#n680
fbsd_busdma_x86.c line 680] should extend the first page segment when a
page boundary is met.
The failure is still unclear, but I suppose this code could be tested in
the context of another driver.
--
Ticket URL: <https://dev.haiku-os.org/ticket/9601#comment:5>
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