#20949: writing to sdcard on mt7621 causes kernel oops
------------------------+------------------------------------
Reporter: anonymous | Owner: developers
Type: defect | Status: new
Priority: normal | Milestone:
Component: kernel | Version: Chaos Calmer 15.05
Resolution: | Keywords: sdio mmc mt7621 ramips
------------------------+------------------------------------
Comment (by anonymous):
{{{
[ 170.810000] msdc-1 -> msdc pio find abort <- msdc_pio_abort() : L<1189>
PID<mmcqd/0><0xb14>
[ 170.820000] msdc-1 -> write pio data->error<-5> <- msdc_pio_write() :
L<1301> PID<mmcqd/0><0xb14>
[ 170.850000] mmcblk0: error -5 transferring data, sector 27576, nr 1016,
cmd response 0x900, card status 0x0
[ 170.870000] blk_update_request: I/O error, dev mmcblk0, sector 28442
[ 170.880000] Buffer I/O error on dev mmcblk0p1, logical block 3299, lost
async page write
[ 170.900000] blk_update_request: I/O error, dev mmcblk0, sector 28448
[ 170.920000] Buffer I/O error on dev mmcblk0p1, logical block 3300, lost
async page write
[ 170.930000] blk_update_request: I/O error, dev mmcblk0, sector 28456
[ 170.950000] Buffer I/O error on dev mmcblk0p1, logical block 3301, lost
async page write
[ 170.970000] blk_update_request: I/O error, dev mmcblk0, sector 28464
[ 170.980000] Buffer I/O error on dev mmcblk0p1, logical block 3302, lost
async page write
[ 171.000000] blk_update_request: I/O error, dev mmcblk0, sector 28472
[ 171.010000] Buffer I/O error on dev mmcblk0p1, logical block 3303, lost
async page write
[ 171.030000] blk_update_request: I/O error, dev mmcblk0, sector 28480
[ 171.050000] Buffer I/O error on dev mmcblk0p1, logical block 3304, lost
async page write
[ 171.070000] blk_update_request: I/O error, dev mmcblk0, sector 28488
[ 171.080000] Buffer I/O error on dev mmcblk0p1, logical block 3305, lost
async page write
[ 171.100000] blk_update_request: I/O error, dev mmcblk0, sector 28496
[ 171.110000] Buffer I/O error on dev mmcblk0p1, logical block 3306, lost
async page write
[ 171.130000] blk_update_request: I/O error, dev mmcblk0, sector 28504
[ 171.150000] Buffer I/O error on dev mmcblk0p1, logical block 3307, lost
async page write
[ 171.160000] blk_update_request: I/O error, dev mmcblk0, sector 28512
[ 171.180000] Buffer I/O error on dev mmcblk0p1, logical block 3308, lost
async page write
[ 181.540000] ------------[ cut here ]------------
[ 181.550000] WARNING: CPU: 1 PID: 2850 at fs/block_dev.c:67
bdev_inode_switch_bdi+0xc0/0xcc()
[ 181.570000] Modules linked in: qcserial pppoe ppp_async option l2tp_ppp
iptable_nat cdc_mbim usb_wwan usb_serial_simple sierra rndih
[ 181.950000] CPU: 1 PID: 2850 Comm: dd Not tainted 3.18.23 #18
[ 181.960000] Stack : 00000000 00000004 00000006 80059bc8 00000000
00000000 00000000 00000000
803856e2 00000031 00000b22 00000000 00000043 00000001 802deb48
80342983
00000b22 00000001 80384468 8f8a92d8 0004001e 80347410 802ea4ac
8005a714
80346e60 80029374 00000003 802e458c 802e27cc 8d1a5da4 0004001e
001a5da4
00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
...
[ 182.040000] Call Trace:
[ 182.050000] [<80016144>] show_stack+0x50/0x84
[ 182.060000] [<8015f9d8>] dump_stack+0x64/0x84
[ 182.070000] [<8002947c>] warn_slowpath_common+0x84/0xb4
[ 182.080000] [<80029534>] warn_slowpath_null+0x18/0x24
[ 182.090000] [<800f28f4>] bdev_inode_switch_bdi+0xc0/0xcc
[ 182.100000] [<800f375c>] __blkdev_put+0xc0/0x180
[ 182.110000] [<800f41f4>] blkdev_close+0x1c/0x2c
[ 182.120000] [<800c0894>] __fput+0xf8/0x1e4
[ 182.130000] [<8003f784>] task_work_run+0xb0/0xdc
[ 182.140000] [<800059ac>] work_notifysig+0x10/0x18
[ 182.150000]
[ 182.160000] ---[ end trace 0c81e62827d0cddd ]---
}}}
--
Ticket URL: <https://dev.openwrt.org/ticket/20949#comment:1>
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