Re: aarch64 kernel oops during mmap
On Thu, 2014-01-16 at 18:28 +, Ryan Harkin wrote: > On 16 January 2014 16:59, Tom Gall wrote: > > > Now on the real bit of fun that I want to get to the bottom of. > > > > This is from startx on the model. > > > > I have -C cache_state_modelled=0 set. Would that have an affect here? > > > > No. This doesn't effect the functionality of the model. From memory, > this is a debugging option that tells the user (via output to the terminal > where you launched the model) if there have been any cache state violations. I think it's a bit more than that and tells the model to emulate the cache in a similar way to how hardware works, so if the running code doesn't perform cache maintenance correctly it will go horribly wrong as on real hardware. -- Tixy ___ linaro-dev mailing list linaro-dev@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-dev
Re: aarch64 kernel oops during mmap
On 16 January 2014 16:59, Tom Gall wrote: > Now on the real bit of fun that I want to get to the bottom of. > > This is from startx on the model. > > I have -C cache_state_modelled=0 set. Would that have an affect here? > No. This doesn't effect the functionality of the model. From memory, this is a debugging option that tells the user (via output to the terminal where you launched the model) if there have been any cache state violations. > [ 2823.338192] Unable to handle kernel paging request at virtual > address ffbc0054 > [ 2823.338248] pgd = ffc078dd > [ 2823.338295] [ffbc0054] *pgd= > [ 2823.338353] Internal error: Oops: 9606 [#1] SMP > [ 2823.338395] Modules linked in: gator > [ 2823.338481] CPU: 6 PID: 1575 Comm: X Not tainted > 3.13.0-1-linaro-vexpress64 #1ubuntu1~ci+131216010606 > [ 2823.338558] task: ffc079b95500 ti: ffc078fd8000 task.ti: > ffc078fd8000 > [ 2823.338624] PC is at page_mapping+0x0/0x3c > [ 2823.338690] LR is at __sync_icache_dcache+0x2c/0xb8 > [ 2823.338751] pc : [] lr : [] > pstate: 6145 > [ 2823.338805] sp : ffc078fdbbc0 > [ 2823.338852] x29: ffc078fdbbc0 x28: 0041 > [ 2823.338923] x27: 007fa7787000 x26: 00200f43 > [ 2823.338995] x25: 007fa780 x24: ffc078017c38 > [ 2823.339068] x23: 012018000f43 x22: 00018000 > [ 2823.339140] x21: 002018000f43 x20: ffc07887f9d8 > [ 2823.339215] x19: ffbc0054 x18: 007fe352a7e0 > [ 2823.339287] x17: 007fa795f4c0 x16: ffc87048 > [ 2823.339358] x15: 00592000 x14: 00569538 > [ 2823.339429] x13: 005695c0 x12: 0007 > [ 2823.339500] x11: 0028 x10: > [ 2823.339568] x9 : 0002 x8 : ffc00085d5a0 > [ 2823.339641] x7 : ffc000928000 x6 : 0006 > [ 2823.339710] x5 : 0c38 x4 : ffc078fd8000 > [ 2823.339780] x3 : x2 : > [ 2823.339851] x1 : ffbc x0 : ffbc0054 > [ 2823.339914] > [ 2823.339962] Process X (pid: 1575, stack limit = 0xffc078fd8058) > [ 2823.340026] Stack: (0xffc078fdbbc0 to 0xffc078fdc000) > [ 2823.340133] bbc0: 78fdbbe0 ffc0 00158adc ffc0 03640508 > ffbc ffc0 > [ 2823.340248] bbe0: 78fdbc80 ffc0 0041c988 ffc0 78c05000 > ffc0 7898c318 ffc0 > [ 2823.340360] bc00: 00899db0 ffc0 78c05038 ffc0 > 78fd8000 ffc0 > [ 2823.340475] bc20: 7808b840 ffc0 7898c318 ffc0 789bae58 > ffc0 78fa7c40 ffc0 > [ 2823.340588] bc40: a7907000 007f a7906fff 007f f8070879 > 78dd0ff0 ffc0 > [ 2823.340702] bc60: a7907000 007f a7906fff 007f 78fa7c40 > ffc0 78fd8000 ffc0 > [ 2823.340816] bc80: 78fdbc90 ffc0 0041c914 ffc0 78fdbca0 ffc0 > 0040e > [ 2823.340816] bc80: 78fdbc90 ffc0 0041c914 ffc0 78fdbca0 > ffc0 0040ef68 ffc0 > [ 2823.340930] bca0: 78fdbcf0 ffc0 0015fa44 ffc0 7898c6b8 > ffc0 a7787000 007f > [ 2823.341042] bcc0: 7898c6a8 ffc0 00ff a7907000 > 007f 78fd8000 ffc0 > [ 2823.341152] bce0: 78fdbd70 > ffc0 0015fed0 ffc0 > [ 2823.341261] bd00: 0007 00ff 7808b840 > ffc0 0001 > [ 2823.341372] bd20: 78fa7c40 ffc0 0018 0180 > a7787000 007f > [ 2823.341480] bd40: 0007 78fd8000 ffc0 0180 > > [ 2823.341593] bd60: 0017ee44 ffc0 78fdbde0 > ffc0 0014c900 ffc0 > [ 2823.341702] bd80: 0018 > 7808b840 ffc0 > [ 2823.341813] bda0: 78fa7ca0 ffc0 0018 > 00638000 ffc0 > [ 2823.341925] bdc0: 0086b000 ffc0 00604104 ffc0 > 78fdbe20 ffc0 > [ 2823.342036] bde0: 78fdbe50 ffc0 0015e528 ffc0 0001 > 0018 > [ 2823.342145] be00: 7808b840 ffc0 0003 > 0200 > [ 2823.342252] be20: 00083988 ffc0 0003 > 0001 > [ 2823.342363] be40: 0044ffb8 78fdbec0 > ffc0 00087060 ffc0 > [ 2823.342475] be60: 3faa4400 3faa3c40 > a7bb85f8 007f > [ 2823.342583] be80: 8000 0015 0112 > 00de > [ 2823.342695] bea0: 0017d770 ffc0 1bf7 > a7ee8000 007f > [ 2823.342806] bec0: e352aa40 007f 000839ec ffc0 > 0018 > [ 2823.342912] bee0: 0003 0001 0009 > > [ 2823.343020] bf00: 005a5048 0002 00de > 005694d8 > [ 2823.343129] bf20: 01010101 01010101 0028 0007 > 005695
aarch64 kernel oops during mmap
Now on the real bit of fun that I want to get to the bottom of. This is from startx on the model. I have -C cache_state_modelled=0 set. Would that have an affect here? [ 2823.338192] Unable to handle kernel paging request at virtual address ffbc0054 [ 2823.338248] pgd = ffc078dd [ 2823.338295] [ffbc0054] *pgd= [ 2823.338353] Internal error: Oops: 9606 [#1] SMP [ 2823.338395] Modules linked in: gator [ 2823.338481] CPU: 6 PID: 1575 Comm: X Not tainted 3.13.0-1-linaro-vexpress64 #1ubuntu1~ci+131216010606 [ 2823.338558] task: ffc079b95500 ti: ffc078fd8000 task.ti: ffc078fd8000 [ 2823.338624] PC is at page_mapping+0x0/0x3c [ 2823.338690] LR is at __sync_icache_dcache+0x2c/0xb8 [ 2823.338751] pc : [] lr : [] pstate: 6145 [ 2823.338805] sp : ffc078fdbbc0 [ 2823.338852] x29: ffc078fdbbc0 x28: 0041 [ 2823.338923] x27: 007fa7787000 x26: 00200f43 [ 2823.338995] x25: 007fa780 x24: ffc078017c38 [ 2823.339068] x23: 012018000f43 x22: 00018000 [ 2823.339140] x21: 002018000f43 x20: ffc07887f9d8 [ 2823.339215] x19: ffbc0054 x18: 007fe352a7e0 [ 2823.339287] x17: 007fa795f4c0 x16: ffc87048 [ 2823.339358] x15: 00592000 x14: 00569538 [ 2823.339429] x13: 005695c0 x12: 0007 [ 2823.339500] x11: 0028 x10: [ 2823.339568] x9 : 0002 x8 : ffc00085d5a0 [ 2823.339641] x7 : ffc000928000 x6 : 0006 [ 2823.339710] x5 : 0c38 x4 : ffc078fd8000 [ 2823.339780] x3 : x2 : [ 2823.339851] x1 : ffbc x0 : ffbc0054 [ 2823.339914] [ 2823.339962] Process X (pid: 1575, stack limit = 0xffc078fd8058) [ 2823.340026] Stack: (0xffc078fdbbc0 to 0xffc078fdc000) [ 2823.340133] bbc0: 78fdbbe0 ffc0 00158adc ffc0 03640508 ffbc ffc0 [ 2823.340248] bbe0: 78fdbc80 ffc0 0041c988 ffc0 78c05000 ffc0 7898c318 ffc0 [ 2823.340360] bc00: 00899db0 ffc0 78c05038 ffc0 78fd8000 ffc0 [ 2823.340475] bc20: 7808b840 ffc0 7898c318 ffc0 789bae58 ffc0 78fa7c40 ffc0 [ 2823.340588] bc40: a7907000 007f a7906fff 007f f8070879 78dd0ff0 ffc0 [ 2823.340702] bc60: a7907000 007f a7906fff 007f 78fa7c40 ffc0 78fd8000 ffc0 [ 2823.340816] bc80: 78fdbc90 ffc0 0041c914 ffc0 78fdbca0 ffc0 0040e [ 2823.340816] bc80: 78fdbc90 ffc0 0041c914 ffc0 78fdbca0 ffc0 0040ef68 ffc0 [ 2823.340930] bca0: 78fdbcf0 ffc0 0015fa44 ffc0 7898c6b8 ffc0 a7787000 007f [ 2823.341042] bcc0: 7898c6a8 ffc0 00ff a7907000 007f 78fd8000 ffc0 [ 2823.341152] bce0: 78fdbd70 ffc0 0015fed0 ffc0 [ 2823.341261] bd00: 0007 00ff 7808b840 ffc0 0001 [ 2823.341372] bd20: 78fa7c40 ffc0 0018 0180 a7787000 007f [ 2823.341480] bd40: 0007 78fd8000 ffc0 0180 [ 2823.341593] bd60: 0017ee44 ffc0 78fdbde0 ffc0 0014c900 ffc0 [ 2823.341702] bd80: 0018 7808b840 ffc0 [ 2823.341813] bda0: 78fa7ca0 ffc0 0018 00638000 ffc0 [ 2823.341925] bdc0: 0086b000 ffc0 00604104 ffc0 78fdbe20 ffc0 [ 2823.342036] bde0: 78fdbe50 ffc0 0015e528 ffc0 0001 0018 [ 2823.342145] be00: 7808b840 ffc0 0003 0200 [ 2823.342252] be20: 00083988 ffc0 0003 0001 [ 2823.342363] be40: 0044ffb8 78fdbec0 ffc0 00087060 ffc0 [ 2823.342475] be60: 3faa4400 3faa3c40 a7bb85f8 007f [ 2823.342583] be80: 8000 0015 0112 00de [ 2823.342695] bea0: 0017d770 ffc0 1bf7 a7ee8000 007f [ 2823.342806] bec0: e352aa40 007f 000839ec ffc0 0018 [ 2823.342912] bee0: 0003 0001 0009 [ 2823.343020] bf00: 005a5048 0002 00de 005694d8 [ 2823.343129] bf20: 01010101 01010101 0028 0007 005695c0 [ 2823.343239] bf40: 00569538 00592000 a7bb85e4 007f a795f4c0 007f [ 2823.343349] bf60: e352a7e0 007f 3faa4400 3faa3c40 [ 2823.343459] bf80: 3faa5610 a7974000 007f e352adb8 007f 0004 [ 2823.343570] bfa0: 00592000 a7963a90 007f 00591000 e352aa40 007f [ 2823.343681] bfc0: a794e8c4 007f e352aa40 007f a7bb85f8 007f 800
