Stanislaw Gruszka <sgruszka@xxxxxxxxxx> writes: > On Tue, May 03, 2011 at 01:20:25PM +0300, Kalle Valo wrote: >> I noticed today a crash when removing iwlagn module. I can see the >> crash everytime on my lenovo x201 (x86 64bit, i5) with this wireless >> chip: >> >> [ 19.484551] iwlagn 0000:02:00.0: Detected Intel(R) Centrino(R) >> Ultimate-N 6300 AGN, REV=0x74 [...] > We can not exclude iwlagn problem only triggered with intel iommu, > because problem does not happen with other modules, or does it? I have only seen the crash with iwlagn. But I have to admit that I haven't tried to unload modules that much. > Except test patch pointed by Johannes, I suggest turning on > CONFIG_DMA_API_DEBUG I already had this on and I haven't noticed anything wrong. > and test with intel_iommu=on and intel_iommu=off. I'll skip these as David's patch seem to already help. -- Kalle Valo -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
