Kumar Gala wrote: > [ 497.499249] usb-storage D 00000000 0 671 5 > 773 670 (L-TLB) > [ 497.506930] Call Trace: > [ 497.509372] [C3F35A60] [C00083AC] __switch_to+0x28/0x40 > [ 497.514608] [C3F35A80] [C01F4B78] schedule+0x324/0x6bc > [ 497.519756] [C3F35AC0] [C01F5D6C] schedule_timeout+0x6c/0xd0 > [ 497.525426] [C3F35B00] [C01F5C9C] io_schedule_timeout+0x30/0x54 > [ 497.531356] [C3F35B20] [C0050DE4] congestion_wait+0x64/0x8c > [ 497.536941] [C3F35B70] [C004A9F0] throttle_vm_writeout+0x1c/0x84 > [ 497.542958] [C3F35B90] [C004F33C] shrink_zone+0xbb0/0xfe4 > [ 497.548367] [C3F35D40] [C004F8F4] try_to_free_pages+0x184/0x2cc > [ 497.554298] [C3F35DB0] [C0049AA8] __alloc_pages+0x110/0x2c0 > [ 497.559878] [C3F35E00] [C0060F84] cache_alloc_refill+0x394/0x694 > [ 497.565900] [C3F35E30] [C00614A0] __kmalloc+0xc4/0xcc > [ 497.570961] [C3F35E40] [C01544D0] usb_alloc_urb+0x1c/0x5c > [ 497.576371] [C3F35E50] [C015520C] usb_sg_init+0x1a0/0x2f8 > [ 497.581779] [C3F35EA0] [C0167318] usb_stor_bulk_transfer_sg+0x8c/0x138 > [ 497.588317] [C3F35ED0] [C0167960] usb_stor_Bulk_transport+0x140/0x310 > [ 497.594767] [C3F35F00] [C0167DCC] usb_stor_invoke_transport+0x2c/0x344 > [ 497.601303] [C3F35F50] [C0166B2C] > usb_stor_transparent_scsi_command+0x10/0x20 > [ 497.608449] [C3F35F60] [C0168498] usb_stor_control_thread+0x1f8/0x290 > [ 497.614900] [C3F35FC0] [C0033E48] kthread+0xf4/0x130 > [ 497.619876] [C3F35FF0] [C001093C] kernel_thread+0x44/0x60
This seems like a problem, the usb-storage thread is trying to allocate some memory which is ending up waiting for VM writeout, which obviously won't proceed since this thread is the one that needs to do this.. It looks like the allocation in usb_stor_bulk_transfer_sglist is done with GFP_NOIO, so I wonder why we're getting into this state? -- Robert Hancock Saskatoon, SK, Canada To email, remove "nospam" from [EMAIL PROTECTED] Home Page: http://www.roberthancock.com/ ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Linux-usb-users@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
