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Date: Tue, 6 Jan 2015 16:05:01 +0800 From: Yingchun Li <sword.l.dragon@...il.com> To: linux-kernel@...r.kernel.org Subject: ZRAM: scheduling while atomic 3.10.62 I encountered a BUG when use zram on my board, following is the message: [ 120.351196] BUG: scheduling while atomic: Binder_3/230/0x00000003 [ 120.351806] Modules linked in: rdawfmac rda_cam_sensor(O) rda_ls(O) rda_gs(O) rda_ts(O) voc(O) vpu(O) galcore(O) rda_headset(O) [ 120.353210] CPU: 0 PID: 230 Comm: Binder_3 Tainted: G W O 3.10.62-01224-gcfffb36 #1 [ 120.354248] [<c001047d>] (unwind_backtrace+0x1/0x98) from [<c000ee93>] (show_stack+0xb/0xc) [ 120.355285] [<c000ee93>] (show_stack+0xb/0xc) from [<c036c275>] (__schedule_bug+0x31/0x48) [ 120.356323] [<c036c275>] (__schedule_bug+0x31/0x48) from [<c036f9c9>] (__schedule+0x275/0x2c8) [ 120.357360] [<c036f9c9>] (__schedule+0x275/0x2c8) from [<c037044d>] (__down_write_nested+0x51/0xa4) [ 120.358459] [<c037044d>] (__down_write_nested+0x51/0xa4) from [<c025ed2f>] (zram_slot_free_notify+0x13/0x2c) [ 120.359680] [<c025ed2f>] (zram_slot_free_notify+0x13/0x2c) from [<c007a06d>] (swap_entry_free+0xd9/0x124) [ 120.360900] [<c007a06d>] (swap_entry_free+0xd9/0x124) from [<c007ac5f>] (free_swap_and_cache+0x1f/0xc8) [ 120.362060] [<c007ac5f>] (free_swap_and_cache+0x1f/0xc8) from [<c006ebe9>] (unmap_single_vma+0x1fd/0x45c) [ 120.363220] [<c006ebe9>] (unmap_single_vma+0x1fd/0x45c) from [<c006f4e3>] (unmap_vmas+0x33/0x40) [ 120.364318] [<c006f4e3>] (unmap_vmas+0x33/0x40) from [<c00716c7>] (unmap_region+0x73/0xfc) [ 120.365356] [<c00716c7>] (unmap_region+0x73/0xfc) from [<c00728e7>] (do_munmap+0x177/0x244) [ 120.366394] [<c00728e7>] (do_munmap+0x177/0x244) from [<c00729df>] (vm_munmap+0x2b/0x38) [ 120.367370] [<c00729df>] (vm_munmap+0x2b/0x38) from [<c000cc41>] (ret_fast_syscall+0x1/0x46) And I notice there is a similar post here: https://lkml.org/lkml/2013/8/17/27 And it has been fixed by mainline(by Commit a0c516cbfc74),and there is some other patches to optimize the patch(Commit f614a9f48ded). I just want to know is there any plan to back port the patchs to 3.10.y? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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