dma_map_sg badness

From: Thomas Stein
Date: Tue Apr 04 2006 - 03:40:39 EST


Hello everybody.

I have some weird messages in my systemlog since upgrading to kernel 2.6.16.

Badness in dma_map_sg at include/asm/dma-mapping.h:47
[<c02893da>] ide_build_sglist+0x7f/0xb6
[<c028944e>] ide_build_dmatable+0x3d/0x12d
[<c0289780>] ide_dma_setup+0x22/0x8a
[<c0290ecf>] idetape_issue_packet_command+0x122/0x20a
[<c02917e2>] idetape_do_request+0x29f/0x2a9
[<c02836c4>] start_request+0x189/0x1a7
[<c02839e4>] ide_do_request+0x2da/0x31e
[<c0283a3f>] do_ide_request+0x17/0x1a
[<c0224015>] elv_insert+0x5c/0x141
[<c0283ec4>] ide_do_drive_cmd+0x96/0xd6
[<c0291914>] __idetape_kmalloc_stage+0x128/0x19e
[<c02921ea>] idetape_insert_pipeline_into_queue+0x39/0x3f
[<c02923d2>] idetape_add_chrdev_write_request+0x105/0x141
[<c029300f>] idetape_chrdev_write+0x1ea/0x22d
[<c0140796>] vfs_write+0x88/0x11c
[<c01408c8>] sys_write+0x3b/0x63
[<c01029e1>] syscall_call+0x7/0xb

Its a regular x86 machine (athlon-xp) with a IDE Tape Writer ( Sony
Storestation) connected to the Secondary IDE channel. Someone knows whats
causing this?

Oh before i forget, i am not subscribed to the list. Please CC me if you
answer to that posting. Thanks.

best regards
t.
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