linux-kernel - 4.14-rc2 on thinkpad x220: out of memory when inserting mmc card

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Date:   Sun, 1 Oct 2017 11:37:04 +0200
From:   Pavel Machek <pavel@....cz>
To:     kernel list <linux-kernel@...r.kernel.org>,
        adrian.hunter@...el.com, linux-mmc@...r.kernel.org
Subject: 4.14-rc2 on thinkpad x220: out of memory when inserting mmc card

Hi!

I inserted u-SD card, only to realize that it is not detected as it
should be. And dmesg indeed reveals:

[10994.299846] mmc0: new high speed SDHC card at address 0003
[10994.302196] kworker/2:1: page allocation failure: order:4,
mode:0x16040c0(GFP_KERNEL|__GFP_COMP|__GFP_NOTRACK), nodemask=(null)
[10994.302212] CPU: 2 PID: 9500 Comm: kworker/2:1 Not tainted
4.14.0-rc2 #135
[10994.302215] Hardware name: LENOVO 42872WU/42872WU, BIOS 8DET73WW
(1.43 ) 10/12/2016
[10994.302222] Workqueue: events_freezable mmc_rescan
[10994.302227] Call Trace:
[10994.302233]  dump_stack+0x4d/0x67
[10994.302239]  warn_alloc+0xde/0x180
[10994.302243]  __alloc_pages_nodemask+0xaa4/0xd30
[10994.302249]  ? cache_alloc_refill+0xb73/0xc10
[10994.302252]  cache_alloc_refill+0x101/0xc10
[10994.302258]  ? mmc_init_request+0x2d/0xd0
[10994.302262]  ? mmc_init_request+0x2d/0xd0
[10994.302265]  __kmalloc+0xaf/0xe0
[10994.302269]  mmc_init_request+0x2d/0xd0
[10994.302273]  alloc_request_size+0x45/0x60
[10994.302276]  ? free_request_size+0x30/0x30
[10994.302280]  mempool_create_node+0xd7/0x130
[10994.302283]  ? alloc_request_simple+0x20/0x20
[10994.302287]  blk_init_rl+0xe8/0x110
[10994.302290]  blk_init_allocated_queue+0x70/0x180
[10994.302294]  mmc_init_queue+0xdd/0x370
[10994.302297]  mmc_blk_alloc_req+0xf6/0x340
[10994.302301]  mmc_blk_probe+0x18b/0x4e0
[10994.302305]  mmc_bus_probe+0x12/0x20
[10994.302309]  driver_probe_device+0x2f4/0x490

Order 4 allocations are not supposed to be reliable...

Any ideas?

Thanks,
									Pavel

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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