On Thu, Sep 01, 2011 at 04:34:51PM +0100, Russell King - ARM Linux wrote: > On Thu, Sep 01, 2011 at 11:33:43PM +0800, Shawn Guo wrote: > > This is also the case on i.MX6Q, which L2 cache is retained during a > > suspend/resume cycle. Currently, I have to call into the following > > before calling generic cpu_suspend() to clean/invalidate the entire > > L2 cache. > > > > outer_flush_all(); > > outer_disable(); > > > > But there is a wired thing on using generic cpu_resume(). I have to > > invalidate L1 before calling into cpu_resume() like below. > > > > ENTRY(imx6q_cpu_resume) > > bl v7_invalidate_l1 > > b cpu_resume > > ENDPROC(imx6q_cpu_resume) > > > > ENTRY(imx6q_secondary_startup) > > bl v7_invalidate_l1 > > b secondary_startup > > ENDPROC(imx6q_secondary_startup) > > > > The v7_invalidate_l1() is the function copied from mach-tegra/headsmp.S, > > which has to be called before calling secondary_startup to boot > > secondary cores (same situation between Tegra and i.MX6Q). > > Presumably that's because your L1 cache contains randomized data with > random validity (and presumably random dirtyness) at boot time - something > which unfortunately the ARM ARM permits. I don't think we can go to the > extent of dealing with this in the generic code as it would unnecessarily > perturb those implementations which either the boot loader has already > sorted out that issue, or which don't have the issue at all. > Yes, agreed. It seems that Tegra and i.MX6Q are the only two CA9MP cases here. But is it possible to maintain this v7_invalidate_l1() function in cache-v7.S, so that we do not need to duplicate it in platform codes?
> > Before applying this patch series, I have something like below actually > > working. > > > > > > outer_flush_all(); > > outer_disable(); > > imx_set_cpu_jump(0, imx6q_cpu_resume); > > /* Zzz ... */ > > cpu_suspend(0, imx6q_suspend_finish); > > > > I expect with you patches applied, I can still have it work with simply > > removing those two lines outer cache codes. > > That should be the case. > > > But unfortunately, I'm > > running into Oops when resuming back. And I also have Oops with > > imx_set_cpu_jump(0, cpu_resume) which means skipping the > > v7_invalidate_l1() and calling generic cpu_resume() only. > > Do you have a copy of the oops? > root@freescale ~$ echo mem > /sys/power/state PM: Syncing filesystems ... done. PM: Preparing system for mem sleep Freezing user space processes ... (elapsed 0.01 seconds) done. Freezing remaining freezable tasks ... (elapsed 0.01 seconds) done. PM: Entering mem sleep PM: suspend of devices complete after 0.402 msecs PM: suspend devices took 0.000 seconds PM: late suspend of devices complete after 0.276 msecs Disabling non-boot CPUs ... CPU1: shutdown CPU2: shutdown CPU3: shutdown Unable to handle kernel NULL pointer dereference at virtual address 00000000 pgd = eb308000 [00000000] *pgd=7b11d831, *pte=00000000, *ppte=00000000 Internal error: Oops: 80000005 [#1] SMP Modules linked in: CPU: 0 Not tainted (3.1.0-rc4+ #319) PC is at 0x0 LR is at cpu_init+0x28/0x74 pc : [<00000000>] lr : [<80010544>] psr: 800001f3 sp : eb3dbe70 ip : eb3dbe4c fp : eb2b2560 r10: 8001d8dc r9 : 8001ef68 r8 : 00000004 r7 : 00000003 r6 : 00000000 r5 : eb0b8b60 r4 : 804865d0 r3 : 80012758 r2 : eb3dbe34 r1 : 7b8f806a r0 : 00000000 Flags: Nzcv IRQs off FIQs off Mode SVC_32 ISA Thumb Segment user Control: 10c53c7d Table: 7b8f804a DAC: 00000015 Process login (pid: 445, stack limit = 0xeb3da2f0) Stack: (0xeb3dbe70 to 0xeb3dc000) be60: ffffffff 00000000 eb3dbeac eb3dbe88 be80: 8008adc8 8008a5f8 eb3dbeb4 eb3dbe98 801dbec0 eb0a01e0 eb406600 00000000 bea0: 00000000 00000003 eb3dbed4 eb3dbeb8 80063ffc 80063c78 0000006d eb321000 bec0: 8000e34c 8004d730 eb3dbee4 00000b04 800bc9e4 eb868140 ffffffff 00000000 bee0: eb3dbf70 eb8286c0 00000004 eb806bc0 eb3dbf0c eb3dbf00 801d7344 800633a8 bf00: eb3dbf2c 00000003 2aad7000 00000000 eb3da000 eb0b91e0 00000007 00001000 bf20: eb3dbf64 eb3dbf30 801dbff4 80311644 80000013 eb0b8b9c eb3da000 2aaeb000 bf40: 800a71ec 80025538 800aae40 eb181000 eb3dbfb0 00000000 eb3dbfb0 eb0df000 bf60: 00020000 00000000 00000024 00000100 02012080 00000008 02012080 00000005 bf80: 8000e504 00000000 eb3dbfa4 eb3dbf98 8009fb74 8009f9d8 00000000 eb3dbfa8 bfa0: 8000e380 8002f8a8 7e837d90 00000000 00000000 00000000 00a69008 00000000 bfc0: 00000004 2ab06000 2acb95f8 00000004 00000004 0201029c 00000001 00000000 bfe0: 00000004 7ebc0478 2ac0798c 2ac53e6c 60000010 00000001 00000000 00000000 Backtrace: frame pointer underflow [<eb2b02d4>] (0xeb2b02d4) from [<2571140e>] (0x2571140e) Backtrace aborted due to bad frame pointer <2551140e> Code: bad PC value ---[ end trace b4510fc09c2ffbd1 ]--- Fixing recursive fault but reboot is needed! Unable to handle kernel NULL pointer dereference at virtual address 00000010 pgd = eb308000 [00000010] *pgd=7b11d831, *pte=00000000, *ppte=00000000 Internal error: Oops: 5 [#2] SMP Modules linked in: CPU: 0 Tainted: G D (3.1.0-rc4+ #319) PC is at find_busiest_group+0xd0/0xa4c LR is at 0x0 pc : [<80023810>] lr : [<00000000>] psr: 600001d3 sp : eb3dba58 ip : 00000000 fp : eb3dbb44 r10: 80415ba0 r9 : eb346000 r8 : 80427b3c r7 : 80427d10 r6 : 00000010 r5 : 80415ba0 r4 : 00000000 r3 : 00000000 r2 : 00000000 r1 : 00000024 r0 : eb3dbaf4 Flags: nZCv IRQs off FIQs off Mode SVC_32 ISA ARM Segment user Control: 10c53c7d Table: 7b8f804a DAC: 00000015 Process login (pid: 445, stack limit = 0xeb3da2f0) Stack: (0xeb3dba58 to 0xeb3dc000) ba40: eb926500 0000000a ba60: eb3dba84 eb3dba70 eb3dbb90 00000002 00000000 00000000 00000000 00000000 ba80: 00000000 8020475c eb346000 eb3dba98 80017d90 00000000 80415ba0 80427ab0 baa0: 80415ba0 eb3dbab0 802048a4 00000000 00000000 00000000 00000000 00000000 bac0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 bae0: 00000000 00000000 00000000 00000000 00000000 00001f61 8042d8b4 8042d8b4 bb00: 00001f61 80443ae0 eb3dbb34 eb3dbb18 8004d4b0 80311644 8002b684 8166e0e4 bb20: eb2b2560 eb3da000 80427d10 eb2b26dc eb346000 00000000 eb3dbbc4 eb3dbb48 bb40: 80024240 8002374c 8166e0e4 eb3dbc0c eb3da000 00000002 eb3dbb8c 8166eba0 bb60: eb346000 80415ba0 8166e0e4 80427b3c 80427d10 80427d10 80415ba0 00000020 bb80: eb3dbbac 00000000 8001e5f0 8001ef20 ffffffb5 00000000 eb2b2560 8166eba0 bba0: eb2b2560 eb3da000 80427d10 eb2b26dc eb346000 00000000 eb3dbc3c eb3dbbc8 bbc0: 8030f5ac 80024198 eb3dbc0c 8042d8b4 eb2b2560 eb2b02d8 000bc20f 00000000 bbe0: 00000001 8041a080 80415ba0 80415ba0 ffff9442 00000006 fffffffc 80415ba0 bc00: 80415ba0 804150c0 eb3dbc2c 00000001 8030ed50 eb2b2560 0000000b 00000000 bc20: fffffffc eb3dbc9b 00000020 eb3da000 eb3dbc74 eb3dbc40 8002f534 8030ef88 bc40: eb3da000 00000000 fffffffc eb3dbc9b 00000020 fffffff8 eb3dbc74 eb3dbc68 bc60: 8002b50c fffffffc eb3dbcfc eb3dbc78 80011c88 8002ee9c eb3da2f0 0000000b bc80: 00000004 7f000000 00000000 00000004 8039a080 8039a088 62000005 50206461 bca0: 61762043 0065756c eb3dbccc eb3dbcb8 8030ed50 8002bdd0 80000005 eb3dbcd4 bcc0: eb3dbcfc eb3dbce0 800147cc 8030ed38 803ad880 eb3dbe28 00000000 00000000 bce0: 80000005 eb0b8b60 eb0b8b98 eb2b2560 eb3dbd24 eb3dbd00 8001485c 800119fc bd00: eb3dbe28 eb0b8b60 eb3dbe28 00000000 00010000 80000005 eb3dbd5c eb3dbd28 bd20: 800149c0 800147ec eb922d80 eb44fd30 00000000 80000005 8042af98 00000000 bd40: eb3dbe28 00000004 8001ef68 8001d8dc eb3dbd7c eb3dbd60 80014b74 80014878 bd60: 00000005 8042af98 00000000 eb3dbe28 eb3dbe24 eb3dbd80 800085c4 80014adc bd80: 8032433c 00000000 eb3dbdac eb3dbd98 80074b6c 80074ad8 80074b48 fffffffa bda0: eb90d9e0 00000000 eb3dbdec eb3dbdb8 80027170 80311644 00000001 40000093 bdc0: 800401b4 80027408 eb3dbdec eb3dbdd8 80040248 80040198 80415ba0 80415ba0 bde0: 8020add0 8020ad10 00000000 8048d5c0 0000003f 0000003e eb93a000 8048dee4 be00: eb8295a0 eb3da000 00000000 800001f3 ffffffff eb3dbe5c eb2b2560 eb3dbe28 be20: 8000e018 80008590 00000000 7b8f806a eb3dbe34 80012758 804865d0 eb0b8b60 be40: 00000000 00000003 00000004 8001ef68 8001d8dc eb2b2560 eb3dbe4c eb3dbe70 be60: 80010544 00000000 800001f3 ffffffff ffffffff 00000000 eb3dbeac eb3dbe88 be80: 8008adc8 8008a5f8 eb3dbeb4 eb3dbe98 801dbec0 eb0a01e0 eb406600 00000000 bea0: 00000000 00000003 eb3dbed4 eb3dbeb8 80063ffc 80063c78 0000006d eb321000 bec0: 8000e34c 8004d730 eb3dbee4 00000b04 800bc9e4 eb868140 ffffffff 00000000 bee0: eb3dbf70 eb8286c0 00000004 eb806bc0 eb3dbf0c eb3dbf00 801d7344 800633a8 bf00: eb3dbf2c 00000003 2aad7000 00000000 eb3da000 eb0b91e0 00000007 00001000 bf20: eb3dbf64 eb3dbf30 801dbff4 80311644 80000013 eb0b8b9c eb3da000 2aaeb000 bf40: 800a71ec 80025538 800aae40 eb181000 eb3dbfb0 00000000 eb3dbfb0 eb0df000 bf60: 00020000 00000000 00000024 00000100 02012080 00000008 02012080 00000005 bf80: 8000e504 00000000 eb3dbfa4 eb3dbf98 8009fb74 8009f9d8 00000000 eb3dbfa8 bfa0: 8000e380 8002f8a8 7e837d90 00000000 00000000 00000000 00a69008 00000000 bfc0: 00000004 2ab06000 2acb95f8 00000004 00000004 0201029c 00000001 00000000 bfe0: 00000004 7ebc0478 2ac0798c 2ac53e6c 60000010 00000001 00000000 00000000 Backtrace: [<80023740>] (find_busiest_group+0x0/0xa4c) from [<80024240>] (load_balance+0xb4 /0x5ac) [<8002418c>] (load_balance+0x0/0x5ac) from [<8030f5ac>] (schedule+0x630/0x6a8) [<8030ef7c>] (schedule+0x0/0x6a8) from [<8002f534>] (do_exit+0x6a4/0x6f0) [<8002ee90>] (do_exit+0x0/0x6f0) from [<80011c88>] (die+0x298/0x2ec) r7:fffffffc [<800119f0>] (die+0x0/0x2ec) from [<8001485c>] (__do_kernel_fault+0x7c/0x8c) [<800147e0>] (__do_kernel_fault+0x0/0x8c) from [<800149c0>] (do_page_fault+0x154 /0x1f8) r8:80000005 r7:00010000 r6:00000000 r5:eb3dbe28 r4:eb0b8b60 r3:eb3dbe28 [<8001486c>] (do_page_fault+0x0/0x1f8) from [<80014b74>] (do_translation_fault+0 xa4/0xa8) [<80014ad0>] (do_translation_fault+0x0/0xa8) from [<800085c4>] (do_PrefetchAbort +0x40/0xa4) r7:eb3dbe28 r6:00000000 r5:8042af98 r4:00000005 [<80008584>] (do_PrefetchAbort+0x0/0xa4) from [<8000e018>] (__pabt_svc+0x38/0x80 ) Exception stack(0xeb3dbe28 to 0xeb3dbe70) be20: 00000000 7b8f806a eb3dbe34 80012758 804865d0 eb0b8b60 be40: 00000000 00000003 00000004 8001ef68 8001d8dc eb2b2560 eb3dbe4c eb3dbe70 be60: 80010544 00000000 800001f3 ffffffff r7:eb3dbe5c r6:ffffffff r5:800001f3 r4:00000000 Backtrace aborted due to bad frame pointer <eb2b2560> Code: e51b20c8 e3a01024 e28e6010 e51b30cc (e7965002) ---[ end trace b4510fc09c2ffbd2 ]--- Fixing recursive fault but reboot is needed! Unable to handle kernel NULL pointer dereference at virtual address 00000008 pgd = eb308000 [00000008] *pgd=7b11d831, *pte=00000000, *ppte=00000000 Internal error: Oops: 5 [#3] SMP Modules linked in: CPU: 0 Tainted: G D (3.1.0-rc4+ #319) PC is at rb_next+0xc/0x74 LR is at pick_next_task_fair+0xd8/0x114 pc : [<801dbb18>] lr : [<80022230>] psr: 600001d3 sp : eb3db778 ip : eb3db788 fp : eb3db784 r10: 00000000 r9 : 80313ac0 r8 : eb2b26dc r7 : 80427d10 r6 : 00000000 r5 : 8166eba0 r4 : 00000000 r3 : 80022158 r2 : ffffffff r1 : 00000000 r0 : 00000008 Flags: nZCv IRQs off FIQs off Mode SVC_32 ISA ARM Segment user Control: 10c53c7d Table: 7b8f804a DAC: 00000015 Process login (pid: 445, stack limit = 0xeb3da2f0) Stack: (0xeb3db778 to 0xeb3dc000) b760: eb3db7a4 eb3db788 b780: 80022230 801dbb18 8166eba0 eb2b2560 eb3da000 80427d10 eb3db81c eb3db7a8 b7a0: 8030f450 80022164 00000000 8042d8b4 8039a085 ffffffff ffffffff 8039a087 b7c0: 00000001 0039a085 80415ba0 80415ba0 0000000b 00000000 00000001 80415ba0 b7e0: 80415ba0 804150c0 eb3db80c eb3db7f8 8030ed50 eb2b2560 0000000b 00000000 b800: 00000001 eb3db8aa 00000000 eb3da000 eb3db854 eb3db820 8002f534 8030ef88 b820: eb3da000 00000000 00000001 eb3db8aa 00000000 80023812 eb3db854 eb3db848 b840: 8002b50c 00000001 eb3db8dc eb3db858 80011c88 8002ee9c eb3da2f0 0000000b b860: 00000004 7f000000 00000000 00000008 8039a080 8039a088 65000005 32623135 b880: 20386330 30613365 34323031 38326520 31303665 35652030 30336231 28206363 b8a0: 36393765 32303035 80002029 8030ed38 803ad880 eb3dba10 00000010 00000000 b8c0: 00000005 eb0b8b60 eb0b8b98 eb2b2560 eb3db904 eb3db8e0 8001485c 800119fc b8e0: eb3dba10 eb0b8b60 eb3dba10 00000010 00010000 00000005 eb3db93c eb3db908 b900: 800149c0 800147ec eb3db930 eb3db918 801df694 00000005 00000010 8042af48 b920: 00000005 eb3dba10 eb346000 80415ba0 eb3db95c eb3db940 80014b74 80014878 b940: 00000005 00000010 8042af48 00000005 eb3dba0c eb3db960 80008520 80014adc b960: 00000000 eb3db991 80443f0c 80443b39 00000000 ffffffff eb3dba94 eb3db988 b980: 801de75c 801de3d0 ffffffff ffffffff 327830f8 31313735 00653034 00001831 b9a0: 0000001c 80427afc eb3dba0c 0000184d 8042d8b4 8042d8b4 0000184d 80443ae0 b9c0: eb3db9ec eb3db9d0 8004d4b0 80311644 8002b684 8002b51c 0000184d 0000184d b9e0: eb3dba24 eb3db9f0 eb3dba0c 80023810 600001d3 ffffffff eb3dba44 80427b3c ba00: eb3dbb44 eb3dba10 8000de98 800084f0 eb3dbaf4 00000024 00000000 00000000 ba20: 00000000 80415ba0 00000010 80427d10 80427b3c eb346000 80415ba0 eb3dbb44 ba40: 00000000 eb3dba58 00000000 80023810 600001d3 ffffffff eb926500 0000000a ba60: eb3dba84 eb3dba70 eb3dbb90 00000002 00000000 00000000 00000000 00000000 ba80: 00000000 8020475c eb346000 eb3dba98 80017d90 00000000 80415ba0 80427ab0 baa0: 80415ba0 eb3dbab0 802048a4 00000000 00000000 00000000 00000000 00000000 bac0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 bae0: 00000000 00000000 00000000 00000000 00000000 00001f61 8042d8b4 8042d8b4 bb00: 00001f61 80443ae0 eb3dbb34 eb3dbb18 8004d4b0 80311644 8002b684 8166e0e4 bb20: eb2b2560 eb3da000 80427d10 eb2b26dc eb346000 00000000 eb3dbbc4 eb3dbb48 bb40: 80024240 8002374c 8166e0e4 eb3dbc0c eb3da000 00000002 eb3dbb8c 8166eba0 bb60: eb346000 80415ba0 8166e0e4 80427b3c 80427d10 80427d10 80415ba0 00000020 bb80: eb3dbbac 00000000 8001e5f0 8001ef20 ffffffb5 00000000 eb2b2560 8166eba0 bba0: eb2b2560 eb3da000 80427d10 eb2b26dc eb346000 00000000 eb3dbc3c eb3dbbc8 bbc0: 8030f5ac 80024198 eb3dbc0c 8042d8b4 eb2b2560 eb2b02d8 000bc20f 00000000 bbe0: 00000001 8041a080 80415ba0 80415ba0 ffff9442 00000006 fffffffc 80415ba0 bc00: 80415ba0 804150c0 eb3dbc2c 00000001 8030ed50 eb2b2560 0000000b 00000000 bc20: fffffffc eb3dbc9b 00000020 eb3da000 eb3dbc74 eb3dbc40 8002f534 8030ef88 bc40: eb3da000 00000000 fffffffc eb3dbc9b 00000020 fffffff8 eb3dbc74 eb3dbc68 bc60: 8002b50c fffffffc eb3dbcfc eb3dbc78 80011c88 8002ee9c eb3da2f0 0000000b bc80: 00000004 7f000000 00000000 00000004 8039a080 8039a088 62000005 50206461 bca0: 61762043 0065756c eb3dbccc eb3dbcb8 8030ed50 8002bdd0 80000005 eb3dbcd4 bcc0: eb3dbcfc eb3dbce0 800147cc 8030ed38 803ad880 eb3dbe28 00000000 00000000 bce0: 80000005 eb0b8b60 eb0b8b98 eb2b2560 eb3dbd24 eb3dbd00 8001485c 800119fc bd00: eb3dbe28 eb0b8b60 eb3dbe28 00000000 00010000 80000005 eb3dbd5c eb3dbd28 bd20: 800149c0 800147ec eb922d80 eb44fd30 00000000 80000005 8042af98 00000000 bd40: eb3dbe28 00000004 8001ef68 8001d8dc eb3dbd7c eb3dbd60 80014b74 80014878 bd60: 00000005 8042af98 00000000 eb3dbe28 eb3dbe24 eb3dbd80 800085c4 80014adc bd80: 8032433c 00000000 eb3dbdac eb3dbd98 80074b6c 80074ad8 80074b48 fffffffa bda0: eb90d9e0 00000000 eb3dbdec eb3dbdb8 80027170 80311644 00000001 40000093 bdc0: 800401b4 80027408 eb3dbdec eb3dbdd8 80040248 80040198 80415ba0 80415ba0 bde0: 8020add0 8020ad10 00000000 8048d5c0 0000003f 0000003e eb93a000 8048dee4 be00: eb8295a0 eb3da000 00000000 800001f3 ffffffff eb3dbe5c eb2b2560 eb3dbe28 be20: 8000e018 80008590 00000000 7b8f806a eb3dbe34 80012758 804865d0 eb0b8b60 be40: 00000000 00000003 00000004 8001ef68 8001d8dc eb2b2560 eb3dbe4c eb3dbe70 be60: 80010544 00000000 800001f3 ffffffff ffffffff 00000000 eb3dbeac eb3dbe88 be80: 8008adc8 8008a5f8 eb3dbeb4 eb3dbe98 801dbec0 eb0a01e0 eb406600 00000000 bea0: 00000000 00000003 eb3dbed4 eb3dbeb8 80063ffc 80063c78 0000006d eb321000 bec0: 8000e34c 8004d730 eb3dbee4 00000b04 800bc9e4 eb868140 ffffffff 00000000 bee0: eb3dbf70 eb8286c0 00000004 eb806bc0 eb3dbf0c eb3dbf00 801d7344 800633a8 bf00: eb3dbf2c 00000003 2aad7000 00000000 eb3da000 eb0b91e0 00000007 00001000 bf20: eb3dbf64 eb3dbf30 801dbff4 80311644 80000013 eb0b8b9c eb3da000 2aaeb000 bf40: 800a71ec 80025538 800aae40 eb181000 eb3dbfb0 00000000 eb3dbfb0 eb0df000 bf60: 00020000 00000000 00000024 00000100 02012080 00000008 02012080 00000005 bf80: 8000e504 00000000 eb3dbfa4 eb3dbf98 8009fb74 8009f9d8 00000000 eb3dbfa8 bfa0: 8000e380 8002f8a8 7e837d90 00000000 00000000 00000000 00a69008 00000000 bfc0: 00000004 2ab06000 2acb95f8 00000004 00000004 0201029c 00000001 00000000 bfe0: 00000004 7ebc0478 2ac0798c 2ac53e6c 60000010 00000001 00000000 00000000 Backtrace: [<801dbb0c>] (rb_next+0x0/0x74) from [<80022230>] (pick_next_task_fair+0xd8/0x11 4) [<80022158>] (pick_next_task_fair+0x0/0x114) from [<8030f450>] (schedule+0x4d4/0 x6a8) r7:80427d10 r6:eb3da000 r5:eb2b2560 r4:8166eba0 [<8030ef7c>] (schedule+0x0/0x6a8) from [<8002f534>] (do_exit+0x6a4/0x6f0) [<8002ee90>] (do_exit+0x0/0x6f0) from [<80011c88>] (die+0x298/0x2ec) r7:00000001 [<800119f0>] (die+0x0/0x2ec) from [<8001485c>] (__do_kernel_fault+0x7c/0x8c) [<800147e0>] (__do_kernel_fault+0x0/0x8c) from [<800149c0>] (do_page_fault+0x154 /0x1f8) r8:00000005 r7:00010000 r6:00000010 r5:eb3dba10 r4:eb0b8b60 r3:eb3dba10 [<8001486c>] (do_page_fault+0x0/0x1f8) from [<80014b74>] (do_translation_fault+0 xa4/0xa8) [<80014ad0>] (do_translation_fault+0x0/0xa8) from [<80008520>] (do_DataAbort+0x3 c/0xa0) r7:00000005 r6:8042af48 r5:00000010 r4:00000005 [<800084e4>] (do_DataAbort+0x0/0xa0) from [<8000de98>] (__dabt_svc+0x38/0x60) Exception stack(0xeb3dba10 to 0xeb3dba58) ba00: eb3dbaf4 00000024 00000000 00000000 ba20: 00000000 80415ba0 00000010 80427d10 80427b3c eb346000 80415ba0 eb3dbb44 ba40: 00000000 eb3dba58 00000000 80023810 600001d3 ffffffff r8:80427b3c r7:eb3dba44 r6:ffffffff r5:600001d3 r4:80023810 [<80023740>] (find_busiest_group+0x0/0xa4c) from [<80024240>] (load_balance+0xb4 /0x5ac) [<8002418c>] (load_balance+0x0/0x5ac) from [<8030f5ac>] (schedule+0x630/0x6a8) [<8030ef7c>] (schedule+0x0/0x6a8) from [<8002f534>] (do_exit+0x6a4/0x6f0) [<8002ee90>] (do_exit+0x0/0x6f0) from [<80011c88>] (die+0x298/0x2ec) r7:fffffffc [<800119f0>] (die+0x0/0x2ec) from [<8001485c>] (__do_kernel_fault+0x7c/0x8c) [<800147e0>] (__do_kernel_fault+0x0/0x8c) from [<800149c0>] (do_page_fault+0x154 /0x1f8) r8:80000005 r7:00010000 r6:00000000 r5:eb3dbe28 r4:eb0b8b60 r3:eb3dbe28 [<8001486c>] (do_page_fault+0x0/0x1f8) from [<80014b74>] (do_translation_fault+0 xa4/0xa8) [<80014ad0>] (do_translation_fault+0x0/0xa8) from [<800085c4>] (do_PrefetchAbort +0x40/0xa4) r7:eb3dbe28 r6:00000000 r5:8042af98 r4:00000005 [<80008584>] (do_PrefetchAbort+0x0/0xa4) from [<8000e018>] (__pabt_svc+0x38/0x80 ) Exception stack(0xeb3dbe28 to 0xeb3dbe70) be20: 00000000 7b8f806a eb3dbe34 80012758 804865d0 eb0b8b60 be40: 00000000 00000003 00000004 8001ef68 8001d8dc eb2b2560 eb3dbe4c eb3dbe70 be60: 80010544 00000000 800001f3 ffffffff r7:eb3dbe5c r6:ffffffff r5:800001f3 r4:00000000 Backtrace aborted due to bad frame pointer <eb2b2560> Code: e89da800 e1a0c00d e92dd800 e24cb004 (e5903000) ---[ end trace b4510fc09c2ffbd3 ]--- Fixing recursive fault but reboot is needed! -- Regards, Shawn -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
