* linux-next: Tree for Oct 17 [not found] <20131018003847.GH2443@sirena.org.uk> @ 2013-10-18 7:45 ` Olof Johansson 2013-10-18 8:22 ` Thierry Reding 2013-10-18 11:33 ` Guenter Roeck 0 siblings, 2 replies; 6+ messages in thread From: Olof Johansson @ 2013-10-18 7:45 UTC (permalink / raw) To: linux-arm-kernel On Fri, Oct 18, 2013 at 01:38:47AM +0100, Mark Brown wrote: > Hi all, > > I've uploaded today's linux-next tree to the master branch of the > repository below: > > git://gitorious.org/thierryreding/linux-next.git > > A next-20131017 tag is also provided for convenience. > > One new conflict today but otherwise uneventful. x86_64 allmodconfigs > build after each merge but no other build tests were done. Hi, I'm seeing a fairly large fallout on boot testing. See http://lists.linaro.org/pipermail/kernel-build-reports/2013-October/000719.html for full list (I need to start providing longer backlogs for failures, the top of the oopses is lost in the email). For example, on dove (SolidRun Cubox) I see: [ 0.707248] Unable to handle kernel NULL pointer dereference at virtual address 00000054 [ 0.715297] pgd = c0004000 [ 0.717984] [00000054] *pgd=00000000 [ 0.721548] Internal error: Oops: 5 [#1] ARM [ 0.725794] Modules linked in: [ 0.728841] CPU: 0 PID: 1 Comm: swapper Not tainted 3.12.0-rc5-next-20131017 #1 [ 0.736114] task: ef035c00 ti: ef036000 task.ti: ef036000 [ 0.741497] PC is at kfree+0x54/0xc4 [ 0.745063] LR is at ata_host_register+0x3c/0x290 [ 0.749741] pc : [<c008ad28>] lr : [<c023e168>] psr: 40000193 [ 0.749741] sp : ef037da8 ip : 00000034 fp : 00000000 [ 0.761159] r10: 00000000 r9 : ef061810 r8 : c0519fc8 [ 0.766353] r7 : c0519fc8 r6 : a0000113 r5 : ffffffff r4 : ef1c9dd0 [ 0.772850] r3 : c0fc8fe0 r2 : c07c9000 r1 : 40000000 r0 : 00000000 [ 0.779349] Flags: nZcv IRQs off FIQs on Mode SVC_32 ISA ARM Segment kernel [ 0.786708] Control: 10c5387d Table: 00004019 DAC: 00000015 [ 0.792428] Process swapper (pid: 1, stack limit = 0xef036248) [ 0.798234] Stack: (0xef037da8 to 0xef038000) [ 0.957218] [<c008ad28>] (kfree+0x54/0xc4) from [<c023e168>] (ata_host_register+0x3c/0x290) [ 0.965542] [<c023e168>] (ata_host_register+0x3c/0x290) from [<c023e498>] (ata_host_activate+0xdc/0x118) [ 0.974992] [<c023e498>] (ata_host_activate+0xdc/0x118) from [<c0251130>] (mv_platform_probe+0x2dc/0x36c) [ 0.984527] [<c0251130>] (mv_platform_probe+0x2dc/0x36c) from [<c021b6c4>] (platform_drv_probe+0x18/0x48) [ 0.994051] [<c021b6c4>] (platform_drv_probe+0x18/0x48) from [<c0219e88>] (really_probe+0x74/0x1fc) [ 1.003062] [<c0219e88>] (really_probe+0x74/0x1fc) from [<c021a0fc>] (__driver_attach+0x98/0x9c) [ 1.011804] [<c021a0fc>] (__driver_attach+0x98/0x9c) from [<c02186cc>] (bus_for_each_dev+0x60/0x94) [ 1.020808] [<c02186cc>] (bus_for_each_dev+0x60/0x94) from [<c0219728>] (bus_add_driver+0x148/0x1f0) [ 1.029898] [<c0219728>] (bus_add_driver+0x148/0x1f0) from [<c021a700>] (driver_register+0x78/0xf8) [ 1.038911] [<c021a700>] (driver_register+0x78/0xf8) from [<c04e2ed0>] (mv_init+0x30/0x50) [ 1.047144] [<c04e2ed0>] (mv_init+0x30/0x50) from [<c000877c>] (do_one_initcall+0x100/0x14c) [ 1.055557] [<c000877c>] (do_one_initcall+0x100/0x14c) from [<c04cead4>] (kernel_init_freeable+0x120/0x1c0) [ 1.065259] [<c04cead4>] (kernel_init_freeable+0x120/0x1c0) from [<c038fe30>] (kernel_init+0x8/0x158) [ 1.074441] [<c038fe30>] (kernel_init+0x8/0x158) from [<c000e0b8>] (ret_from_fork+0x14/0x3c) [ 1.082841] Code: e0823283 e3110902 1593301c e593001c (e5904054) I bisected it down to commit 55acc602faae7c10e53acdca0c70f4936c2539c6, which is really weird. That is: commit 55acc602faae7c10e53acdca0c70f4936c2539c6 Merge: e32face ba6857b Author: Mark Brown <broonie@linaro.org> AuthorDate: Thu Oct 17 23:55:55 2013 +0100 Commit: Mark Brown <broonie@linaro.org> CommitDate: Thu Oct 17 23:55:55 2013 +0100 Merge remote-tracking branch 'driver-core/driver-core-next' Conflicts: include/linux/netdevice.h But there isn't anything controversial in the merge commit. I tried checking out either side of that merge, and they both boot fine. I redid the merge myself, and I get no delta compared to your merge and I still get the same failure. I've got more failures than dove, I'll try bisecting a few of the others in the morning (it's late here), hopefully they will help indicate what's actually going wrong. I'm guessing something just happens to move around enough to expose a different problem once the two branches are merged. -Olof ^ permalink raw reply [flat|nested] 6+ messages in thread
* linux-next: Tree for Oct 17 2013-10-18 7:45 ` linux-next: Tree for Oct 17 Olof Johansson @ 2013-10-18 8:22 ` Thierry Reding 2013-10-18 16:22 ` Kevin Hilman 2013-10-18 11:33 ` Guenter Roeck 1 sibling, 1 reply; 6+ messages in thread From: Thierry Reding @ 2013-10-18 8:22 UTC (permalink / raw) To: linux-arm-kernel On Fri, Oct 18, 2013 at 12:45:26AM -0700, Olof Johansson wrote: > On Fri, Oct 18, 2013 at 01:38:47AM +0100, Mark Brown wrote: > > Hi all, > > > > I've uploaded today's linux-next tree to the master branch of the > > repository below: > > > > git://gitorious.org/thierryreding/linux-next.git > > > A next-20131017 tag is also provided for convenience. > > > > One new conflict today but otherwise uneventful. x86_64 allmodconfigs > > build after each merge but no other build tests were done. > > Hi, > > I'm seeing a fairly large fallout on boot testing. See > http://lists.linaro.org/pipermail/kernel-build-reports/2013-October/000719.html > for full list (I need to start providing longer backlogs for failures, the top > of the oopses is lost in the email). > > For example, on dove (SolidRun Cubox) I see: > > [ 0.707248] Unable to handle kernel NULL pointer dereference at virtual address 00000054 > [ 0.715297] pgd = c0004000 > [ 0.717984] [00000054] *pgd=00000000 > [ 0.721548] Internal error: Oops: 5 [#1] ARM > [ 0.725794] Modules linked in: > [ 0.728841] CPU: 0 PID: 1 Comm: swapper Not tainted 3.12.0-rc5-next-20131017 #1 > [ 0.736114] task: ef035c00 ti: ef036000 task.ti: ef036000 > [ 0.741497] PC is at kfree+0x54/0xc4 > [ 0.745063] LR is at ata_host_register+0x3c/0x290 > [ 0.749741] pc : [<c008ad28>] lr : [<c023e168>] psr: 40000193 > [ 0.749741] sp : ef037da8 ip : 00000034 fp : 00000000 > [ 0.761159] r10: 00000000 r9 : ef061810 r8 : c0519fc8 > [ 0.766353] r7 : c0519fc8 r6 : a0000113 r5 : ffffffff r4 : ef1c9dd0 > [ 0.772850] r3 : c0fc8fe0 r2 : c07c9000 r1 : 40000000 r0 : 00000000 > [ 0.779349] Flags: nZcv IRQs off FIQs on Mode SVC_32 ISA ARM Segment kernel > [ 0.786708] Control: 10c5387d Table: 00004019 DAC: 00000015 > [ 0.792428] Process swapper (pid: 1, stack limit = 0xef036248) > [ 0.798234] Stack: (0xef037da8 to 0xef038000) > [ 0.957218] [<c008ad28>] (kfree+0x54/0xc4) from [<c023e168>] (ata_host_register+0x3c/0x290) > [ 0.965542] [<c023e168>] (ata_host_register+0x3c/0x290) from [<c023e498>] (ata_host_activate+0xdc/0x118) > [ 0.974992] [<c023e498>] (ata_host_activate+0xdc/0x118) from [<c0251130>] (mv_platform_probe+0x2dc/0x36c) > [ 0.984527] [<c0251130>] (mv_platform_probe+0x2dc/0x36c) from [<c021b6c4>] (platform_drv_probe+0x18/0x48) > [ 0.994051] [<c021b6c4>] (platform_drv_probe+0x18/0x48) from [<c0219e88>] (really_probe+0x74/0x1fc) > [ 1.003062] [<c0219e88>] (really_probe+0x74/0x1fc) from [<c021a0fc>] (__driver_attach+0x98/0x9c) > [ 1.011804] [<c021a0fc>] (__driver_attach+0x98/0x9c) from [<c02186cc>] (bus_for_each_dev+0x60/0x94) > [ 1.020808] [<c02186cc>] (bus_for_each_dev+0x60/0x94) from [<c0219728>] (bus_add_driver+0x148/0x1f0) > [ 1.029898] [<c0219728>] (bus_add_driver+0x148/0x1f0) from [<c021a700>] (driver_register+0x78/0xf8) > [ 1.038911] [<c021a700>] (driver_register+0x78/0xf8) from [<c04e2ed0>] (mv_init+0x30/0x50) > [ 1.047144] [<c04e2ed0>] (mv_init+0x30/0x50) from [<c000877c>] (do_one_initcall+0x100/0x14c) > [ 1.055557] [<c000877c>] (do_one_initcall+0x100/0x14c) from [<c04cead4>] (kernel_init_freeable+0x120/0x1c0) > [ 1.065259] [<c04cead4>] (kernel_init_freeable+0x120/0x1c0) from [<c038fe30>] (kernel_init+0x8/0x158) > [ 1.074441] [<c038fe30>] (kernel_init+0x8/0x158) from [<c000e0b8>] (ret_from_fork+0x14/0x3c) > [ 1.082841] Code: e0823283 e3110902 1593301c e593001c (e5904054) > > > I bisected it down to commit 55acc602faae7c10e53acdca0c70f4936c2539c6, which > is really weird. That is: > > commit 55acc602faae7c10e53acdca0c70f4936c2539c6 > Merge: e32face ba6857b > Author: Mark Brown <broonie@linaro.org> > AuthorDate: Thu Oct 17 23:55:55 2013 +0100 > Commit: Mark Brown <broonie@linaro.org> > CommitDate: Thu Oct 17 23:55:55 2013 +0100 > > Merge remote-tracking branch 'driver-core/driver-core-next' > > Conflicts: > include/linux/netdevice.h > > > But there isn't anything controversial in the merge commit. > > I tried checking out either side of that merge, and they both boot > fine. I redid the merge myself, and I get no delta compared to your > merge and I still get the same failure. > > I've got more failures than dove, I'll try bisecting a few of the others > in the morning (it's late here), hopefully they will help indicate what's > actually going wrong. I'm guessing something just happens to move around > enough to expose a different problem once the two branches are merged. Looking at that oops it seems like host is actually NULL when kfree() is called in ata_host_register(). That seems to only happen when freeing up any of the unused ports, which is strange in itself because Cubox seems to only register a single one. Also if host is indeed NULL, then things should go haywire much sooner. Looks like you won't easily find out what's going on here unless you get into it somewhat deeper and perhaps trace what exactly fails and why the NULL pointer is even there in the first place. Thierry -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 836 bytes Desc: not available URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20131018/e8a8fce2/attachment.sig> ^ permalink raw reply [flat|nested] 6+ messages in thread
* linux-next: Tree for Oct 17 2013-10-18 8:22 ` Thierry Reding @ 2013-10-18 16:22 ` Kevin Hilman 2013-10-18 17:01 ` Kevin Hilman 2013-10-18 17:55 ` Olof Johansson 0 siblings, 2 replies; 6+ messages in thread From: Kevin Hilman @ 2013-10-18 16:22 UTC (permalink / raw) To: linux-arm-kernel On Fri, Oct 18, 2013 at 1:22 AM, Thierry Reding <thierry.reding@gmail.com> wrote: > On Fri, Oct 18, 2013 at 12:45:26AM -0700, Olof Johansson wrote: >> On Fri, Oct 18, 2013 at 01:38:47AM +0100, Mark Brown wrote: >> > Hi all, >> > >> > I've uploaded today's linux-next tree to the master branch of the >> > repository below: >> > >> > git://gitorious.org/thierryreding/linux-next.git > >> > A next-20131017 tag is also provided for convenience. >> > >> > One new conflict today but otherwise uneventful. x86_64 allmodconfigs >> > build after each merge but no other build tests were done. >> >> Hi, >> >> I'm seeing a fairly large fallout on boot testing. See >> http://lists.linaro.org/pipermail/kernel-build-reports/2013-October/000719.html >> for full list (I need to start providing longer backlogs for failures, the top >> of the oopses is lost in the email). >> >> For example, on dove (SolidRun Cubox) I see: >> >> [ 0.707248] Unable to handle kernel NULL pointer dereference at virtual address 00000054 >> [ 0.715297] pgd = c0004000 >> [ 0.717984] [00000054] *pgd=00000000 >> [ 0.721548] Internal error: Oops: 5 [#1] ARM >> [ 0.725794] Modules linked in: >> [ 0.728841] CPU: 0 PID: 1 Comm: swapper Not tainted 3.12.0-rc5-next-20131017 #1 >> [ 0.736114] task: ef035c00 ti: ef036000 task.ti: ef036000 >> [ 0.741497] PC is at kfree+0x54/0xc4 >> [ 0.745063] LR is at ata_host_register+0x3c/0x290 >> [ 0.749741] pc : [<c008ad28>] lr : [<c023e168>] psr: 40000193 >> [ 0.749741] sp : ef037da8 ip : 00000034 fp : 00000000 >> [ 0.761159] r10: 00000000 r9 : ef061810 r8 : c0519fc8 >> [ 0.766353] r7 : c0519fc8 r6 : a0000113 r5 : ffffffff r4 : ef1c9dd0 >> [ 0.772850] r3 : c0fc8fe0 r2 : c07c9000 r1 : 40000000 r0 : 00000000 >> [ 0.779349] Flags: nZcv IRQs off FIQs on Mode SVC_32 ISA ARM Segment kernel >> [ 0.786708] Control: 10c5387d Table: 00004019 DAC: 00000015 >> [ 0.792428] Process swapper (pid: 1, stack limit = 0xef036248) >> [ 0.798234] Stack: (0xef037da8 to 0xef038000) >> [ 0.957218] [<c008ad28>] (kfree+0x54/0xc4) from [<c023e168>] (ata_host_register+0x3c/0x290) >> [ 0.965542] [<c023e168>] (ata_host_register+0x3c/0x290) from [<c023e498>] (ata_host_activate+0xdc/0x118) >> [ 0.974992] [<c023e498>] (ata_host_activate+0xdc/0x118) from [<c0251130>] (mv_platform_probe+0x2dc/0x36c) >> [ 0.984527] [<c0251130>] (mv_platform_probe+0x2dc/0x36c) from [<c021b6c4>] (platform_drv_probe+0x18/0x48) >> [ 0.994051] [<c021b6c4>] (platform_drv_probe+0x18/0x48) from [<c0219e88>] (really_probe+0x74/0x1fc) >> [ 1.003062] [<c0219e88>] (really_probe+0x74/0x1fc) from [<c021a0fc>] (__driver_attach+0x98/0x9c) >> [ 1.011804] [<c021a0fc>] (__driver_attach+0x98/0x9c) from [<c02186cc>] (bus_for_each_dev+0x60/0x94) >> [ 1.020808] [<c02186cc>] (bus_for_each_dev+0x60/0x94) from [<c0219728>] (bus_add_driver+0x148/0x1f0) >> [ 1.029898] [<c0219728>] (bus_add_driver+0x148/0x1f0) from [<c021a700>] (driver_register+0x78/0xf8) >> [ 1.038911] [<c021a700>] (driver_register+0x78/0xf8) from [<c04e2ed0>] (mv_init+0x30/0x50) >> [ 1.047144] [<c04e2ed0>] (mv_init+0x30/0x50) from [<c000877c>] (do_one_initcall+0x100/0x14c) >> [ 1.055557] [<c000877c>] (do_one_initcall+0x100/0x14c) from [<c04cead4>] (kernel_init_freeable+0x120/0x1c0) >> [ 1.065259] [<c04cead4>] (kernel_init_freeable+0x120/0x1c0) from [<c038fe30>] (kernel_init+0x8/0x158) >> [ 1.074441] [<c038fe30>] (kernel_init+0x8/0x158) from [<c000e0b8>] (ret_from_fork+0x14/0x3c) >> [ 1.082841] Code: e0823283 e3110902 1593301c e593001c (e5904054) >> >> >> I bisected it down to commit 55acc602faae7c10e53acdca0c70f4936c2539c6, which >> is really weird. That is: >> >> commit 55acc602faae7c10e53acdca0c70f4936c2539c6 >> Merge: e32face ba6857b >> Author: Mark Brown <broonie@linaro.org> >> AuthorDate: Thu Oct 17 23:55:55 2013 +0100 >> Commit: Mark Brown <broonie@linaro.org> >> CommitDate: Thu Oct 17 23:55:55 2013 +0100 >> >> Merge remote-tracking branch 'driver-core/driver-core-next' >> >> Conflicts: >> include/linux/netdevice.h >> >> >> But there isn't anything controversial in the merge commit. >> >> I tried checking out either side of that merge, and they both boot >> fine. I redid the merge myself, and I get no delta compared to your >> merge and I still get the same failure. >> >> I've got more failures than dove, I'll try bisecting a few of the others >> in the morning (it's late here), hopefully they will help indicate what's >> actually going wrong. I'm guessing something just happens to move around >> enough to expose a different problem once the two branches are merged. > > Looking at that oops it seems like host is actually NULL when kfree() is > called in ata_host_register(). That seems to only happen when freeing up > any of the unused ports, which is strange in itself because Cubox seems > to only register a single one. Also if host is indeed NULL, then things > should go haywire much sooner. > > Looks like you won't easily find out what's going on here unless you get > into it somewhat deeper and perhaps trace what exactly fails and why the > NULL pointer is even there in the first place. For me, bisect has fingered the patch below[1]. Reverting that gets i.MX6 wandboard and snowball booting again. Looking into the details about why now... Kevin [1] $ git log -n1 bisect/bad commit 64c862a839a8db2c02bbaa88b923d13e1208919d Author: Joe Perches <joe@perches.com> Date: Fri Oct 11 13:11:38 2013 -0700 devres: add kernel standard devm_k.alloc functions Currently, devm_ managed memory only supports kzalloc. Convert the devm_kzalloc implementation to devm_kmalloc and remove the complete memset to 0 but still set the initial struct devres header and whatever padding before data to 0. Add the other normal alloc variants as static inlines with __GFP_ZERO added to the gfp flag where appropriate: devm_kzalloc devm_kcalloc devm_kmalloc_array Add gfp.h to device.h for the newly added static inlines. akpm: the current API forces us to replace kmalloc() with kzalloc() when performing devm_ conversions. This adds a relatively minor overhead. More significantly, it will defeat kmemcheck used-uninitialized checking, and for a particular driver, losing used-uninitialised checking for their core controlling data structures will significantly degrade kmemcheck usefulness. Signed-off-by: Joe Perches <joe@perches.com> Cc: Tejun Heo <tj@kernel.org> Cc: Sangjung Woo <sangjung.woo@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> ^ permalink raw reply [flat|nested] 6+ messages in thread
* linux-next: Tree for Oct 17 2013-10-18 16:22 ` Kevin Hilman @ 2013-10-18 17:01 ` Kevin Hilman 2013-10-18 17:55 ` Olof Johansson 1 sibling, 0 replies; 6+ messages in thread From: Kevin Hilman @ 2013-10-18 17:01 UTC (permalink / raw) To: linux-arm-kernel On Fri, Oct 18, 2013 at 9:22 AM, Kevin Hilman <khilman@linaro.org> wrote: > On Fri, Oct 18, 2013 at 1:22 AM, Thierry Reding > <thierry.reding@gmail.com> wrote: >> On Fri, Oct 18, 2013 at 12:45:26AM -0700, Olof Johansson wrote: >>> On Fri, Oct 18, 2013 at 01:38:47AM +0100, Mark Brown wrote: >>> > Hi all, >>> > >>> > I've uploaded today's linux-next tree to the master branch of the >>> > repository below: >>> > >>> > git://gitorious.org/thierryreding/linux-next.git > >>> > A next-20131017 tag is also provided for convenience. >>> > >>> > One new conflict today but otherwise uneventful. x86_64 allmodconfigs >>> > build after each merge but no other build tests were done. >>> >>> Hi, >>> >>> I'm seeing a fairly large fallout on boot testing. See >>> http://lists.linaro.org/pipermail/kernel-build-reports/2013-October/000719.html >>> for full list (I need to start providing longer backlogs for failures, the top >>> of the oopses is lost in the email). >>> >>> For example, on dove (SolidRun Cubox) I see: >>> >>> [ 0.707248] Unable to handle kernel NULL pointer dereference at virtual address 00000054 >>> [ 0.715297] pgd = c0004000 >>> [ 0.717984] [00000054] *pgd=00000000 >>> [ 0.721548] Internal error: Oops: 5 [#1] ARM >>> [ 0.725794] Modules linked in: >>> [ 0.728841] CPU: 0 PID: 1 Comm: swapper Not tainted 3.12.0-rc5-next-20131017 #1 >>> [ 0.736114] task: ef035c00 ti: ef036000 task.ti: ef036000 >>> [ 0.741497] PC is at kfree+0x54/0xc4 >>> [ 0.745063] LR is at ata_host_register+0x3c/0x290 >>> [ 0.749741] pc : [<c008ad28>] lr : [<c023e168>] psr: 40000193 >>> [ 0.749741] sp : ef037da8 ip : 00000034 fp : 00000000 >>> [ 0.761159] r10: 00000000 r9 : ef061810 r8 : c0519fc8 >>> [ 0.766353] r7 : c0519fc8 r6 : a0000113 r5 : ffffffff r4 : ef1c9dd0 >>> [ 0.772850] r3 : c0fc8fe0 r2 : c07c9000 r1 : 40000000 r0 : 00000000 >>> [ 0.779349] Flags: nZcv IRQs off FIQs on Mode SVC_32 ISA ARM Segment kernel >>> [ 0.786708] Control: 10c5387d Table: 00004019 DAC: 00000015 >>> [ 0.792428] Process swapper (pid: 1, stack limit = 0xef036248) >>> [ 0.798234] Stack: (0xef037da8 to 0xef038000) >>> [ 0.957218] [<c008ad28>] (kfree+0x54/0xc4) from [<c023e168>] (ata_host_register+0x3c/0x290) >>> [ 0.965542] [<c023e168>] (ata_host_register+0x3c/0x290) from [<c023e498>] (ata_host_activate+0xdc/0x118) >>> [ 0.974992] [<c023e498>] (ata_host_activate+0xdc/0x118) from [<c0251130>] (mv_platform_probe+0x2dc/0x36c) >>> [ 0.984527] [<c0251130>] (mv_platform_probe+0x2dc/0x36c) from [<c021b6c4>] (platform_drv_probe+0x18/0x48) >>> [ 0.994051] [<c021b6c4>] (platform_drv_probe+0x18/0x48) from [<c0219e88>] (really_probe+0x74/0x1fc) >>> [ 1.003062] [<c0219e88>] (really_probe+0x74/0x1fc) from [<c021a0fc>] (__driver_attach+0x98/0x9c) >>> [ 1.011804] [<c021a0fc>] (__driver_attach+0x98/0x9c) from [<c02186cc>] (bus_for_each_dev+0x60/0x94) >>> [ 1.020808] [<c02186cc>] (bus_for_each_dev+0x60/0x94) from [<c0219728>] (bus_add_driver+0x148/0x1f0) >>> [ 1.029898] [<c0219728>] (bus_add_driver+0x148/0x1f0) from [<c021a700>] (driver_register+0x78/0xf8) >>> [ 1.038911] [<c021a700>] (driver_register+0x78/0xf8) from [<c04e2ed0>] (mv_init+0x30/0x50) >>> [ 1.047144] [<c04e2ed0>] (mv_init+0x30/0x50) from [<c000877c>] (do_one_initcall+0x100/0x14c) >>> [ 1.055557] [<c000877c>] (do_one_initcall+0x100/0x14c) from [<c04cead4>] (kernel_init_freeable+0x120/0x1c0) >>> [ 1.065259] [<c04cead4>] (kernel_init_freeable+0x120/0x1c0) from [<c038fe30>] (kernel_init+0x8/0x158) >>> [ 1.074441] [<c038fe30>] (kernel_init+0x8/0x158) from [<c000e0b8>] (ret_from_fork+0x14/0x3c) >>> [ 1.082841] Code: e0823283 e3110902 1593301c e593001c (e5904054) >>> >>> >>> I bisected it down to commit 55acc602faae7c10e53acdca0c70f4936c2539c6, which >>> is really weird. That is: >>> >>> commit 55acc602faae7c10e53acdca0c70f4936c2539c6 >>> Merge: e32face ba6857b >>> Author: Mark Brown <broonie@linaro.org> >>> AuthorDate: Thu Oct 17 23:55:55 2013 +0100 >>> Commit: Mark Brown <broonie@linaro.org> >>> CommitDate: Thu Oct 17 23:55:55 2013 +0100 >>> >>> Merge remote-tracking branch 'driver-core/driver-core-next' >>> >>> Conflicts: >>> include/linux/netdevice.h >>> >>> >>> But there isn't anything controversial in the merge commit. >>> >>> I tried checking out either side of that merge, and they both boot >>> fine. I redid the merge myself, and I get no delta compared to your >>> merge and I still get the same failure. >>> >>> I've got more failures than dove, I'll try bisecting a few of the others >>> in the morning (it's late here), hopefully they will help indicate what's >>> actually going wrong. I'm guessing something just happens to move around >>> enough to expose a different problem once the two branches are merged. >> >> Looking at that oops it seems like host is actually NULL when kfree() is >> called in ata_host_register(). That seems to only happen when freeing up >> any of the unused ports, which is strange in itself because Cubox seems >> to only register a single one. Also if host is indeed NULL, then things >> should go haywire much sooner. >> >> Looks like you won't easily find out what's going on here unless you get >> into it somewhat deeper and perhaps trace what exactly fails and why the >> NULL pointer is even there in the first place. > > For me, bisect has fingered the patch below[1]. Reverting that gets > i.MX6 wandboard and snowball booting again. Looking into the details > about why now... Fix proposed: http://lists.infradead.org/pipermail/linux-arm-kernel/2013-October/206073.html Kevin ^ permalink raw reply [flat|nested] 6+ messages in thread
* linux-next: Tree for Oct 17 2013-10-18 16:22 ` Kevin Hilman 2013-10-18 17:01 ` Kevin Hilman @ 2013-10-18 17:55 ` Olof Johansson 1 sibling, 0 replies; 6+ messages in thread From: Olof Johansson @ 2013-10-18 17:55 UTC (permalink / raw) To: linux-arm-kernel On Fri, Oct 18, 2013 at 9:22 AM, Kevin Hilman <khilman@linaro.org> wrote: > On Fri, Oct 18, 2013 at 1:22 AM, Thierry Reding > <thierry.reding@gmail.com> wrote: >> On Fri, Oct 18, 2013 at 12:45:26AM -0700, Olof Johansson wrote: >>> On Fri, Oct 18, 2013 at 01:38:47AM +0100, Mark Brown wrote: >>> > Hi all, >>> > >>> > I've uploaded today's linux-next tree to the master branch of the >>> > repository below: >>> > >>> > git://gitorious.org/thierryreding/linux-next.git > >>> > A next-20131017 tag is also provided for convenience. >>> > >>> > One new conflict today but otherwise uneventful. x86_64 allmodconfigs >>> > build after each merge but no other build tests were done. >>> >>> Hi, >>> >>> I'm seeing a fairly large fallout on boot testing. See >>> http://lists.linaro.org/pipermail/kernel-build-reports/2013-October/000719.html >>> for full list (I need to start providing longer backlogs for failures, the top >>> of the oopses is lost in the email). >>> >>> For example, on dove (SolidRun Cubox) I see: >>> >>> [ 0.707248] Unable to handle kernel NULL pointer dereference at virtual address 00000054 >>> [ 0.715297] pgd = c0004000 >>> [ 0.717984] [00000054] *pgd=00000000 >>> [ 0.721548] Internal error: Oops: 5 [#1] ARM >>> [ 0.725794] Modules linked in: >>> [ 0.728841] CPU: 0 PID: 1 Comm: swapper Not tainted 3.12.0-rc5-next-20131017 #1 >>> [ 0.736114] task: ef035c00 ti: ef036000 task.ti: ef036000 >>> [ 0.741497] PC is at kfree+0x54/0xc4 >>> [ 0.745063] LR is at ata_host_register+0x3c/0x290 >>> [ 0.749741] pc : [<c008ad28>] lr : [<c023e168>] psr: 40000193 >>> [ 0.749741] sp : ef037da8 ip : 00000034 fp : 00000000 >>> [ 0.761159] r10: 00000000 r9 : ef061810 r8 : c0519fc8 >>> [ 0.766353] r7 : c0519fc8 r6 : a0000113 r5 : ffffffff r4 : ef1c9dd0 >>> [ 0.772850] r3 : c0fc8fe0 r2 : c07c9000 r1 : 40000000 r0 : 00000000 >>> [ 0.779349] Flags: nZcv IRQs off FIQs on Mode SVC_32 ISA ARM Segment kernel >>> [ 0.786708] Control: 10c5387d Table: 00004019 DAC: 00000015 >>> [ 0.792428] Process swapper (pid: 1, stack limit = 0xef036248) >>> [ 0.798234] Stack: (0xef037da8 to 0xef038000) >>> [ 0.957218] [<c008ad28>] (kfree+0x54/0xc4) from [<c023e168>] (ata_host_register+0x3c/0x290) >>> [ 0.965542] [<c023e168>] (ata_host_register+0x3c/0x290) from [<c023e498>] (ata_host_activate+0xdc/0x118) >>> [ 0.974992] [<c023e498>] (ata_host_activate+0xdc/0x118) from [<c0251130>] (mv_platform_probe+0x2dc/0x36c) >>> [ 0.984527] [<c0251130>] (mv_platform_probe+0x2dc/0x36c) from [<c021b6c4>] (platform_drv_probe+0x18/0x48) >>> [ 0.994051] [<c021b6c4>] (platform_drv_probe+0x18/0x48) from [<c0219e88>] (really_probe+0x74/0x1fc) >>> [ 1.003062] [<c0219e88>] (really_probe+0x74/0x1fc) from [<c021a0fc>] (__driver_attach+0x98/0x9c) >>> [ 1.011804] [<c021a0fc>] (__driver_attach+0x98/0x9c) from [<c02186cc>] (bus_for_each_dev+0x60/0x94) >>> [ 1.020808] [<c02186cc>] (bus_for_each_dev+0x60/0x94) from [<c0219728>] (bus_add_driver+0x148/0x1f0) >>> [ 1.029898] [<c0219728>] (bus_add_driver+0x148/0x1f0) from [<c021a700>] (driver_register+0x78/0xf8) >>> [ 1.038911] [<c021a700>] (driver_register+0x78/0xf8) from [<c04e2ed0>] (mv_init+0x30/0x50) >>> [ 1.047144] [<c04e2ed0>] (mv_init+0x30/0x50) from [<c000877c>] (do_one_initcall+0x100/0x14c) >>> [ 1.055557] [<c000877c>] (do_one_initcall+0x100/0x14c) from [<c04cead4>] (kernel_init_freeable+0x120/0x1c0) >>> [ 1.065259] [<c04cead4>] (kernel_init_freeable+0x120/0x1c0) from [<c038fe30>] (kernel_init+0x8/0x158) >>> [ 1.074441] [<c038fe30>] (kernel_init+0x8/0x158) from [<c000e0b8>] (ret_from_fork+0x14/0x3c) >>> [ 1.082841] Code: e0823283 e3110902 1593301c e593001c (e5904054) >>> >>> >>> I bisected it down to commit 55acc602faae7c10e53acdca0c70f4936c2539c6, which >>> is really weird. That is: >>> >>> commit 55acc602faae7c10e53acdca0c70f4936c2539c6 >>> Merge: e32face ba6857b >>> Author: Mark Brown <broonie@linaro.org> >>> AuthorDate: Thu Oct 17 23:55:55 2013 +0100 >>> Commit: Mark Brown <broonie@linaro.org> >>> CommitDate: Thu Oct 17 23:55:55 2013 +0100 >>> >>> Merge remote-tracking branch 'driver-core/driver-core-next' >>> >>> Conflicts: >>> include/linux/netdevice.h >>> >>> >>> But there isn't anything controversial in the merge commit. >>> >>> I tried checking out either side of that merge, and they both boot >>> fine. I redid the merge myself, and I get no delta compared to your >>> merge and I still get the same failure. >>> >>> I've got more failures than dove, I'll try bisecting a few of the others >>> in the morning (it's late here), hopefully they will help indicate what's >>> actually going wrong. I'm guessing something just happens to move around >>> enough to expose a different problem once the two branches are merged. >> >> Looking at that oops it seems like host is actually NULL when kfree() is >> called in ata_host_register(). That seems to only happen when freeing up >> any of the unused ports, which is strange in itself because Cubox seems >> to only register a single one. Also if host is indeed NULL, then things >> should go haywire much sooner. >> >> Looks like you won't easily find out what's going on here unless you get >> into it somewhat deeper and perhaps trace what exactly fails and why the >> NULL pointer is even there in the first place. > > For me, bisect has fingered the patch below[1]. Reverting that gets > i.MX6 wandboard and snowball booting again. Looking into the details > about why now... Yep, I can confirm this fixes cubox as well. I had bisected down to the same patch but didn't have time to send email before I had school dropoff and a meeting, so now it's all sorted. Excellent timing, thanks. :) -Olof ^ permalink raw reply [flat|nested] 6+ messages in thread
* linux-next: Tree for Oct 17 2013-10-18 7:45 ` linux-next: Tree for Oct 17 Olof Johansson 2013-10-18 8:22 ` Thierry Reding @ 2013-10-18 11:33 ` Guenter Roeck 1 sibling, 0 replies; 6+ messages in thread From: Guenter Roeck @ 2013-10-18 11:33 UTC (permalink / raw) To: linux-arm-kernel On 10/18/2013 12:45 AM, Olof Johansson wrote: > On Fri, Oct 18, 2013 at 01:38:47AM +0100, Mark Brown wrote: >> Hi all, >> >> I've uploaded today's linux-next tree to the master branch of the >> repository below: >> >> git://gitorious.org/thierryreding/linux-next.git > >> A next-20131017 tag is also provided for convenience. >> >> One new conflict today but otherwise uneventful. x86_64 allmodconfigs >> build after each merge but no other build tests were done. > > Hi, > > I'm seeing a fairly large fallout on boot testing. See > http://lists.linaro.org/pipermail/kernel-build-reports/2013-October/000719.html > for full list (I need to start providing longer backlogs for failures, the top > of the oopses is lost in the email). > > For example, on dove (SolidRun Cubox) I see: > > [ 0.707248] Unable to handle kernel NULL pointer dereference at virtual address 00000054 > [ 0.715297] pgd = c0004000 > [ 0.717984] [00000054] *pgd=00000000 > [ 0.721548] Internal error: Oops: 5 [#1] ARM > [ 0.725794] Modules linked in: > [ 0.728841] CPU: 0 PID: 1 Comm: swapper Not tainted 3.12.0-rc5-next-20131017 #1 > [ 0.736114] task: ef035c00 ti: ef036000 task.ti: ef036000 > [ 0.741497] PC is at kfree+0x54/0xc4 > [ 0.745063] LR is at ata_host_register+0x3c/0x290 > [ 0.749741] pc : [<c008ad28>] lr : [<c023e168>] psr: 40000193 > [ 0.749741] sp : ef037da8 ip : 00000034 fp : 00000000 > [ 0.761159] r10: 00000000 r9 : ef061810 r8 : c0519fc8 > [ 0.766353] r7 : c0519fc8 r6 : a0000113 r5 : ffffffff r4 : ef1c9dd0 > [ 0.772850] r3 : c0fc8fe0 r2 : c07c9000 r1 : 40000000 r0 : 00000000 > [ 0.779349] Flags: nZcv IRQs off FIQs on Mode SVC_32 ISA ARM Segment kernel > [ 0.786708] Control: 10c5387d Table: 00004019 DAC: 00000015 > [ 0.792428] Process swapper (pid: 1, stack limit = 0xef036248) > [ 0.798234] Stack: (0xef037da8 to 0xef038000) > [ 0.957218] [<c008ad28>] (kfree+0x54/0xc4) from [<c023e168>] (ata_host_register+0x3c/0x290) > [ 0.965542] [<c023e168>] (ata_host_register+0x3c/0x290) from [<c023e498>] (ata_host_activate+0xdc/0x118) > [ 0.974992] [<c023e498>] (ata_host_activate+0xdc/0x118) from [<c0251130>] (mv_platform_probe+0x2dc/0x36c) > [ 0.984527] [<c0251130>] (mv_platform_probe+0x2dc/0x36c) from [<c021b6c4>] (platform_drv_probe+0x18/0x48) > [ 0.994051] [<c021b6c4>] (platform_drv_probe+0x18/0x48) from [<c0219e88>] (really_probe+0x74/0x1fc) > [ 1.003062] [<c0219e88>] (really_probe+0x74/0x1fc) from [<c021a0fc>] (__driver_attach+0x98/0x9c) > [ 1.011804] [<c021a0fc>] (__driver_attach+0x98/0x9c) from [<c02186cc>] (bus_for_each_dev+0x60/0x94) > [ 1.020808] [<c02186cc>] (bus_for_each_dev+0x60/0x94) from [<c0219728>] (bus_add_driver+0x148/0x1f0) > [ 1.029898] [<c0219728>] (bus_add_driver+0x148/0x1f0) from [<c021a700>] (driver_register+0x78/0xf8) > [ 1.038911] [<c021a700>] (driver_register+0x78/0xf8) from [<c04e2ed0>] (mv_init+0x30/0x50) > [ 1.047144] [<c04e2ed0>] (mv_init+0x30/0x50) from [<c000877c>] (do_one_initcall+0x100/0x14c) > [ 1.055557] [<c000877c>] (do_one_initcall+0x100/0x14c) from [<c04cead4>] (kernel_init_freeable+0x120/0x1c0) > [ 1.065259] [<c04cead4>] (kernel_init_freeable+0x120/0x1c0) from [<c038fe30>] (kernel_init+0x8/0x158) > [ 1.074441] [<c038fe30>] (kernel_init+0x8/0x158) from [<c000e0b8>] (ret_from_fork+0x14/0x3c) > [ 1.082841] Code: e0823283 e3110902 1593301c e593001c (e5904054) > My 'sh' qemu run fails with: BUG: unable to handle kernel paging request at 00006e81 PC: [<8c1f10ce>] ata_finalize_port_ops+0x4e/0xc0 pgd = 8c401150 [00006e81] *pgd=00000000 Oops: 0000 [#1] Modules linked in: CPU: 0 PID: 1 Comm: swapper Not tainted 3.12.0-rc5-next-20131017-06210-gdaa01b0 #1 task: 8fc27be0 ti: 8fc28000 task.ti: 8fc28000 PC is at ata_finalize_port_ops+0x4e/0xc0 PR is at ata_host_start+0x48/0x1c0 PC : 8c1f10ce SP : 8fc29e0c SR : 40008001 TEA : 00006e81 R0 : 00000000 R1 : 8fc83018 R2 : 00006e81 R3 : 00000000 R4 : 8fc83000 R5 : 000000bc R6 : 00006e69 R7 : 8fc830f0 R8 : 8fd47cac R9 : 8fd47cac R10 : 00000000 R11 : 8c207d80 R12 : 8c1f1080 R13 : 00000000 R14 : 00000064 MACH: 00000000 MACL: 00000001 GBR : 00000000 PR : 8c1f21e8 Call trace: [<8c1f807e>] ata_host_activate+0x1e/0x120 [<8c207d80>] ata_sff_interrupt+0x0/0x240 [<8c209ed6>] pata_platform_probe+0x76/0x120 [<8c209ed6>] pata_platform_probe+0x76/0x120 [<8c1cf440>] platform_get_resource+0x0/0x60 [<8c1cfeda>] platform_drv_probe+0x1a/0x60 [<8c012800>] arch_local_save_flags+0x0/0x20 [<8c1ce1ee>] driver_probe_device+0x6e/0x260 [<8c012820>] arch_local_irq_restore+0x0/0x40 [<8c1cc4c0>] klist_devices_put+0x0/0x20 [<8c1ce466>] __driver_attach+0x86/0xa0 [<8c2fa800>] mutex_lock+0x0/0x60 [<8c1cc8c8>] bus_for_each_dev+0x48/0x80 [<8c1cc620>] next_device+0x0/0x20 [<8c1ce3e0>] __driver_attach+0x0/0xa0 [<8c1cd862>] bus_add_driver+0xc2/0x220 [<8c1ce90c>] driver_register+0x4c/0x120 [<8c3eeccc>] pata_platform_driver_init+0x0/0x14 [<8c011244>] do_one_initcall+0x1c4/0x280 [<8c3eeccc>] pata_platform_driver_init+0x0/0x14 [<8c059160>] register_irq_proc+0x0/0xa0 [<8c10b6f0>] proc_create_data+0x50/0xe0 [<8c03f2b8>] parse_args+0x218/0x3a0 [<8c03f000>] parameq+0x0/0xa0 [<8c012820>] arch_local_irq_restore+0x0/0x40 [<8c3e0a06>] kernel_init_freeable+0xce/0x1c8 [<8c011080>] do_one_initcall+0x0/0x280 [<8c3e0158>] repair_env_string+0x0/0x80 [<8c2f492c>] kernel_init+0xc/0xe0 [<8c012820>] arch_local_irq_restore+0x0/0x40 [<8c04a580>] schedule_tail+0x0/0x60 [<8c0181e8>] ret_from_kernel_thread+0xc/0x14 [<8c04a580>] schedule_tail+0x0/0x60 [<8c2f4920>] kernel_init+0x0/0xe0 Code: 8c1f10c8: mov.l @r1, r3 8c1f10ca: tst r3, r3 8c1f10cc: bf 8c1f10c0 ->8c1f10ce: mov.l @r2, r3 8c1f10d0: mov.l r3, @r1 8c1f10d2: add #4, r1 8c1f10d4: cmp/hi r1, r7 8c1f10d6: bt.s 8c1f10c8 8c1f10d8: add #4, r2 I can try to bisect later today if needed, but it looks similar. Also, the parisc:a500_defconfig is a new build failure. Guenter ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2013-10-18 17:55 UTC | newest]
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2013-10-18 7:45 ` linux-next: Tree for Oct 17 Olof Johansson
2013-10-18 8:22 ` Thierry Reding
2013-10-18 16:22 ` Kevin Hilman
2013-10-18 17:01 ` Kevin Hilman
2013-10-18 17:55 ` Olof Johansson
2013-10-18 11:33 ` Guenter Roeck
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