Re: [Regression 5.7-rc1] Random hangs on 32-bit PowerPC (PowerBook6,7)

2020-05-18 Thread Christophe Leroy
Hi, Le 18/05/2020 à 13:20, Rui Salvaterra a écrit : [Resending since I messed up the subject, sorry] Hi, everyone, Something went wrong between Linux 5.6 and 5.7-rc1. This is an iBook G4 laptop with 1.5 GiB of RAM running the Debian powerpc port. I haven't bisected yet, since it's going to tak

Re: [Regression 5.7-rc1] Random hangs on 32-bit PowerPC (PowerBook6,7)

2020-05-18 Thread Christophe Leroy
Hi On 05/18/2020 01:25 PM, Rui Salvaterra wrote: Hi, Christophe, On Mon, 18 May 2020 at 12:50, Christophe Leroy wrote: Can you provide your .config, tell which GCC version you are using, and tell a bit more about your config: amount of RAM, is there swap, etc ... Ok, so this laptop has

Re: [Regression 5.7-rc1] Random hangs on 32-bit PowerPC (PowerBook6,7)

2020-05-18 Thread Christophe Leroy
Le 18/05/2020 à 17:19, Rui Salvaterra a écrit : Hi again, Christophe, On Mon, 18 May 2020 at 15:03, Christophe Leroy wrote: Can you try reverting 697ece78f8f749aeea40f2711389901f0974017a ? It may have broken swap. Yeah, that was a good call. :) Linux 5.7-rc1 with the revert on top

Re: [Regression 5.7-rc1] Random hangs on 32-bit PowerPC (PowerBook6,7)

2020-05-20 Thread Christophe Leroy
Le 20/05/2020 à 15:43, Aneesh Kumar K.V a écrit : Christophe Leroy writes: Le 18/05/2020 à 17:19, Rui Salvaterra a écrit : Hi again, Christophe, On Mon, 18 May 2020 at 15:03, Christophe Leroy wrote: Can you try reverting 697ece78f8f749aeea40f2711389901f0974017a ? It may have broken

Re: Kernel 5.10-rc4 doesn't boot

2020-11-29 Thread Christophe Leroy
completely in order to kick out all 601 particularities that were a nightmare. A git bisect going from v5.9 to v5.10.0-rc1 resulted in the following, after about 13 kernels: - 69a1593abdbcf03a76367320d929a8ae7a5e3d71 is the first bad commit - I'm cc'ing Christophe Leroy, since I

Re: Debian SID kernel doesn't boot on PowerBook 3400c

2021-07-31 Thread Christophe Leroy
(bad) 15) 5.10.0-rc2-pmac-00247-gf8a4b277c3c (good) 16) 5.10.0-rc2-pmac-00248-gdb972a3787d (bad) db972a3787d12b1ce9ba7a31ec376d8a79e04c47 is the first bad commit Not sure this is really the root of the problem. Can you try again without CONFIG_VMAP_STACK ? Thanks Christophe commit db972a3787d12b1ce9ba7a31ec376d8a79e

Re: Debian SID kernel doesn't boot on PowerBook 3400c

2021-08-02 Thread Christophe Leroy
Le 31/07/2021 à 20:24, Stan Johnson a écrit : Hi Christophe, On 7/31/21 9:58 AM, Christophe Leroy wrote: Stan Johnson a écrit : Hello, The current Debian SID kernel will not boot on a PowerBook 3400c running the latest version of Debian SID. If booted using the BootX extension, the

Re: Debian SID kernel doesn't boot on PowerBook 3400c

2021-08-03 Thread Christophe Leroy
Le 02/08/2021 à 19:32, Stan Johnson a écrit : On 8/2/21 8:41 AM, Christophe Leroy wrote: Le 31/07/2021 à 20:24, Stan Johnson a écrit : Hi Christophe, On 7/31/21 9:58 AM, Christophe Leroy wrote: Stan Johnson a écrit : Hello, The current Debian SID kernel will not boot on a PowerBook

Re: Debian SID kernel doesn't boot on PowerBook 3400c

2021-08-03 Thread Christophe Leroy
Le 04/08/2021 à 02:34, Finn Thain a écrit : On Tue, 3 Aug 2021, Christophe Leroy wrote: Looks like the memory errors are linked to KUAP (Kernel Userspace Access Protection). Based on the places the problems happen, I don't think there are any invalid access, so there must be some

Re: Debian SID kernel doesn't boot on PowerBook 3400c

2021-08-05 Thread Christophe Leroy
PM, Finn Thain wrote: $ curl https://lore.kernel.org/lkml/9b64dde3-6ebd-b446-41d9-61e8cb0d8...@csgroup.eu/raw ../message.mbox ok $ sha1 ../message.mbox SHA1 (../message.mbox) = 436ce0adf893c46c84c54607f73c838897caeeea On Wed, 4 Aug 2021, Christophe Leroy wrote: Can you check if they h

Re: Debian SID kernel doesn't boot on PowerBook 3400c

2021-08-06 Thread Christophe Leroy
Le 06/08/2021 à 11:43, Finn Thain a écrit : On Fri, 6 Aug 2021, Christophe Leroy wrote: Can you check if they DO NOT happen at preceding commit c16728835~ $ git checkout c16728835~ Previous HEAD position was c16728835eec powerpc/32: Manage KUAP in C HEAD is now at 0b45359aa2df powerpc

Re: Debian SID kernel doesn't boot on PowerBook 3400c

2021-08-07 Thread Christophe Leroy
Le 07/08/2021 à 15:09, Stan Johnson a écrit : On 8/6/21 10:08 PM, Finn Thain wrote: On Fri, 6 Aug 2021, Stan Johnson wrote: $ egrep '(CONFIG_PPC_KUAP|CONFIG_VMAP_STACK)' .config CONFIG_PPC_KUAP=y CONFIG_PPC_KUAP_DEBUG=y CONFIG_VMAP_STACK=y $ strings vmlinux | fgrep "Linux version" Linux ve

Re: Debian SID kernel doesn't boot on PowerBook 3400c

2021-08-07 Thread Christophe Leroy
Le 07/08/2021 à 18:26, Stan Johnson a écrit : On 8/7/21 8:35 AM, Christophe Leroy wrote: Le 07/08/2021 à 15:09, Stan Johnson a écrit : On 8/6/21 10:08 PM, Finn Thain wrote: On Fri, 6 Aug 2021, Stan Johnson wrote: $ egrep '(CONFIG_PPC_KUAP|CONFIG_VMAP_STACK)' .config CONFIG_