~RE: [RESEND PATCH] mmc: core: fix race condition in mmc_wait_data_done

2015-08-30 Thread Jialing Fu
> [...] > Hi, ulf We find this bug on Intel-C3230RK platform for very small probability. Whereas I can easily reproduce this case if I add a mdelay(1) or longer delay as Jialing did. This patch seems useful to me. Should we push it forward? :) >>> >>> >>> It

Re: [RESEND PATCH] mmc: core: fix race condition in mmc_wait_data_done

2015-08-28 Thread Shawn Lin
在 2015/8/28 18:22, Jialing Fu 写道: [...] Hi, ulf We find this bug on Intel-C3230RK platform for very small probability. Whereas I can easily reproduce this case if I add a mdelay(1) or longer delay as Jialing did. This patch seems useful to me. Should we push it forward? :) It seems like

RE: [RESEND PATCH] mmc: core: fix race condition in mmc_wait_data_done

2015-08-28 Thread Jialing Fu
[...] >>> Hi, ulf >>> >>> We find this bug on Intel-C3230RK platform for very small probability. >>> >>> Whereas I can easily reproduce this case if I add a mdelay(1) or >>> longer delay as Jialing did. >>> >>> This patch seems useful to me. Should we push it forward? :) >> >> >> It seems like

Re: [RESEND PATCH] mmc: core: fix race condition in mmc_wait_data_done

2015-08-28 Thread Ulf Hansson
[...] >>> Hi, ulf >>> >>> We find this bug on Intel-C3230RK platform for very small probability. >>> >>> Whereas I can easily reproduce this case if I add a mdelay(1) or longer >>> delay as Jialing did. >>> >>> This patch seems useful to me. Should we push it forward? :) >> >> >> It seems like a

Re: [RESEND PATCH] mmc: core: fix race condition in mmc_wait_data_done

2015-08-28 Thread Shawn Lin
在 2015/8/28 16:55, Ulf Hansson 写道: On 28 August 2015 at 05:25, Shawn Lin wrote: On 2015/8/28 11:13, Shawn Lin wrote: From: Jialing Fu The following panic is captured in ker3.14, but the issue still exists in latest kernel.

Re: [RESEND PATCH] mmc: core: fix race condition in mmc_wait_data_done

2015-08-28 Thread Ulf Hansson
On 28 August 2015 at 05:25, Shawn Lin wrote: > On 2015/8/28 11:13, Shawn Lin wrote: >> >> From: Jialing Fu >> >> The following panic is captured in ker3.14, but the issue still exists >> in latest kernel. >> - >> [ 20.738217] c

Re: [RESEND PATCH] mmc: core: fix race condition in mmc_wait_data_done

2015-08-27 Thread Shawn Lin
On 2015/8/28 11:13, Shawn Lin wrote: From: Jialing Fu The following panic is captured in ker3.14, but the issue still exists in latest kernel. - [ 20.738217] c0 3136 (Compiler) Unable to handle kernel NULL pointer dereferenc

[RESEND PATCH] mmc: core: fix race condition in mmc_wait_data_done

2015-08-27 Thread Shawn Lin
From: Jialing Fu The following panic is captured in ker3.14, but the issue still exists in latest kernel. - [ 20.738217] c0 3136 (Compiler) Unable to handle kernel NULL pointer dereference at virtual address 0578 .. [