[5.0.0-next-20190306] [powerpc] kernel BUG at mm/page_alloc.c:3124 while running stress

2019-03-07 Thread Sachin Sant
While running stress test from avocado-misc-test against next-20190306 (SHA: cf08baa296) on a POWER9 LPAR ran into following kernel bug followed by panic. next-20190305 was good. (1/1) avocado-misc-tests/perf/stress.py:Stress.test: [ 947.743425] request_module: kmod_concurrent_max (0) close t

Re: [5.6.0-rc2-next-20200218/powerpc] Boot failure on POWER9

2020-02-27 Thread Sachin Sant
> On 27-Feb-2020, at 5:42 PM, Michal Hocko wrote: > > A very good hint indeed. I would do this > diff --git a/include/linux/topology.h b/include/linux/topology.h > index eb2fe6edd73c..d9f1b6737e4d 100644 > --- a/include/linux/topology.h > +++ b/include/linux/topology.h > @@ -137,6 +137,8 @@ sta

Re: [PATCH 1/3] powerpc/numa: Set numa_node for all possible cpus

2020-03-12 Thread Sachin Sant
> On 12-Mar-2020, at 10:57 AM, Srikar Dronamraju > wrote: > > * Michal Hocko [2020-03-11 12:57:35]: > >> On Wed 11-03-20 16:32:35, Srikar Dronamraju wrote: >>> A Powerpc system with multiple possible nodes and with CONFIG_NUMA >>> enabled always used to have a node 0, even if node 0 does not

Re: [5.6.0-rc2-next-20200218/powerpc] Boot failure on POWER9

2020-03-12 Thread Sachin Sant
> The patch below might work. Sachin can you test this? I tried faking up > a system with a memoryless node zero but couldn't get it to even start > booting. > The patch did not help. The kernel crashed during the boot with the same call trace. BUG_ON() introduced with the patch was not triggered

Re: [5.6.0-rc2-next-20200218/powerpc] Boot failure on POWER9

2020-03-14 Thread Sachin Sant
> On 13-Mar-2020, at 5:05 PM, Vlastimil Babka wrote: > > On 3/13/20 12:12 PM, Srikar Dronamraju wrote: >> * Michael Ellerman [2020-03-13 21:48:06]: >> >>> Sachin Sant writes: >>>>> The patch below might work. Sachin can you test this? I tried fa

Re: [PATCH] tpm2: Export tpm2_get_cc_attrs_tbl for ibmvtpm driver as module

2020-03-17 Thread Sachin Sant
t; undefined! > make[1]: *** [scripts/Makefile.modpost:94: __modpost] Error 1 > make: *** [Makefile:1298: modules] Error 2 > > Signed-off-by: Stefan Berger Reported-by: Sachin Sant Tested-by: Sachin Sant Thanks -Sachin

Re: [RFC 1/2] mm, slub: prevent kmalloc_node crashes and memory leaks

2020-03-19 Thread Sachin Sant
> OK how about this version? It's somewhat ugly, but important is that the fast > path case (c->page exists) is unaffected and another common case (c->page is > NULL, but node is NUMA_NO_NODE) is just one extra check - impossible to avoid > at > some point anyway. > I attempted the suggested t

Re: [RFC 1/2] mm, slub: prevent kmalloc_node crashes and memory leaks

2020-03-19 Thread Sachin Sant
> On 19-Mar-2020, at 6:53 PM, Vlastimil Babka wrote: > > On 3/19/20 9:52 AM, Sachin Sant wrote: >> >>> OK how about this version? It's somewhat ugly, but important is that the >>> fast >>> path case (c->page exists) is unaffected and ano

Re: [RFC 1/2] mm, slub: prevent kmalloc_node crashes and memory leaks

2020-03-19 Thread Sachin Sant
>>> Great, thanks! Can I add your Tested-by: then? >> >> Sure. >> Tested-by: Sachin Sant >> >> Thank you for the fix. > > Thanks! Sorry to bother, but in the end I decided to do further change so I > would appreciate verification if it still wor

[5.6.0-rc7] Kernel crash while running ndctl tests

2020-03-23 Thread Sachin Sant
While running ndctl[1] tests against 5.6.0-rc7 following crash is encountered. Bisect leads me to commit d41e2f3bd546 mm/hotplug: fix hot remove failure in SPARSEMEM|!VMEMMAP case Reverting this commit helps and the tests complete without any crash. pmem0: detected capacity change from 0 to 10

Re: [5.6.0-rc7] Kernel crash while running ndctl tests

2020-03-24 Thread Sachin Sant
> On 24-Mar-2020, at 2:45 PM, Aneesh Kumar K.V > wrote: > > Sachin Sant writes: > >> While running ndctl[1] tests against 5.6.0-rc7 following crash is >> encountered. >> >> Bisect leads me to commit d41e2f3bd546 >> mm/hotplug: fix

[powerpc] Intermittent crashes ( link_path_walk) with linux-next

2020-03-26 Thread Sachin Sant
I am running into intermittent crashes with linux-next on POWER 9 PowerVM LPAR First it was against next-20200324 while running LTP tests. With next-20200325 I ran into similar crash (a different stack trace but same failure point — link_path_walk) while running sosreport command. BUG: Kernel NUL

Re: [powerpc] Intermittent crashes ( link_path_walk) with linux-next

2020-03-26 Thread Sachin Sant
> On 26-Mar-2020, at 7:19 PM, Al Viro wrote: > > On Thu, Mar 26, 2020 at 10:40:06PM +1100, Michael Ellerman wrote: > >>> The code in question (link_path_walk() in fs/namei.c ) was recently changed >>> by >>> following commit: >>> >>> commit 881386f7e46a: >>> link_path_walk(): sample paren

Re: [PATCH v2] qtpm2: Export tpm2_get_cc_attrs_tbl for ibmvtpm driver as module

2020-04-01 Thread Sachin Sant
>> ERROR: modpost: "tpm2_get_cc_attrs_tbl" [drivers/char/tpm/tpm_ibmvtpm.ko] >> undefined! >> make[1]: *** [scripts/Makefile.modpost:94: __modpost] Error 1 >> make: *** [Makefile:1298: modules] Error 2 >> >> Fixes: 18b3670d79ae ("tpm: ibmvtpm: Add

[-merge] BUG followed by oops running ndctl tests

2019-11-14 Thread Sachin Sant
Following Oops is seen on latest (commit 3b4852888d) powerpc merge branch code while running ndctl (test_namespace) tests 85c5b0984e was good. (06/12) avocado-misc-tests/memory/ndctl.py:NdctlTest.test_namespace: [ 213.570536] memmap_init_zone_device initialised 1636608 pages in 10ms [ 213.57

Re: [-merge] BUG followed by oops running ndctl tests

2019-11-18 Thread Sachin Sant
> On 16-Nov-2019, at 12:25 AM, Aneesh Kumar K.V > wrote: > > On 11/15/19 11:36 AM, Sachin Sant wrote: >> Following Oops is seen on latest (commit 3b4852888d) powerpc merge branch >> code while running ndctl (test_namespace) tests >> 85c5b0984e was good. >

Re: [PATCH] powerpc/pmem: Fix kernel crash due to wrong range value usage in flush_dcache_range

2019-12-04 Thread Sachin Sant
> > Fixes: 076265907cf9 ("powerpc: Chunk calls to flush_dcache_range in > arch_*_memory") > Reported-by: Sachin Sant > Signed-off-by: Aneesh Kumar K.V > --- > arch/powerpc/mm/mem.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > It t

[next][PowerPC] RCU stalls while booting linux-next on PowerVM LPAR

2019-06-24 Thread Sachin Sant
Latest -next fails to boot on POWER9 PowerVM LPAR due to RCU stalls. This problem was introduced with next-20190620 (dc636f5d78). next-20190619 was last good kernel. Reverting following commit allows the kernel to boot. 2fd4aeea6b603 : mm/memory_hotplug: move and simplify walk_memory_blocks() [

Re: [next][PowerPC] RCU stalls while booting linux-next on PowerVM LPAR

2019-06-24 Thread Sachin Sant
> On 24-Jun-2019, at 8:12 PM, David Hildenbrand wrote: > > On 24.06.19 16:09, Sachin Sant wrote: >> Latest -next fails to boot on POWER9 PowerVM LPAR due to RCU stalls. >> >> This problem was introduced with next-20190620 (dc636f5d78). >> next-20190619 was l

Kernel Bug/oops during boot (PowerVM LPAR w/vTPM)

2019-07-03 Thread Sachin Sant
Booting mainline kernel on PowerVM LPAR with vTPM enabled results into a kernel crash. [0.365989] BUG: Kernel NULL pointer dereference at 0x0012 [0.365995] Faulting instruction address: 0xc073dd80 [0.366000] Oops: Kernel access of bad area, sig: 11 [#1] [0.366005] LE PA

Re: [PATCH] tpm: fixes uninitialized allocated banks for IBM vtpm driver

2019-07-04 Thread Sachin Sant
tpm_chip_register. This ensures that allocated banks are initialized >> in any case. >> >> Fixes: 879b589210a9 ("tpm: retrieve digest size of unknown algorithms with >> PCR read") >> Signed-off-by: Nayna Jain > Reviewed-by: Mimi Zohar Thanks for the fix. Kernel boots fine with this fix. Tested-by: Sachin Sant Thanks -Sachin

Re: [PATCH] powerpc/eeh: Handle hugepages in ioremap space

2019-07-11 Thread Sachin Sant
> prefectly capable of handling them, so do that. > > Cc: Nicholas Piggin > Fixes: 4a7b06c157a2 ("powerpc/eeh: Handle hugepages in ioremap space") > Reported-by: Sachin Sant > Signed-off-by: Oliver O'Halloran Tested-by: Sachin Sant Thanks -Sachin

[5.6.0-rc2-next-20200218/powerpc] Boot failure on POWER9

2020-02-18 Thread Sachin Sant
Todays next fails to boot on a POWER9 PowerVM logical partition with following trace: [8.767660] random: systemd: uninitialized urandom read (16 bytes read) [8.768629] BUG: Kernel NULL pointer dereference on read at 0x73b0 [8.768635] Faulting instruction address: 0xc03d55f4

Re: [5.6.0-rc2-next-20200218/powerpc] Boot failure on POWER9

2020-02-18 Thread Sachin Sant
> On 18-Feb-2020, at 4:20 PM, Kirill Tkhai wrote: > > Hi, Sachin, > > On 18.02.2020 13:45, Sachin Sant wrote: >> >> commit a75056fc1e7c >> mm/memcontrol.c: allocate shrinker_map on appropriate NUMA node >> >> I can boot the kernel successfully

Re: [5.6.0-rc2-next-20200218/powerpc] Boot failure on POWER9

2020-02-18 Thread Sachin Sant
>> could you please test your boot with original patch from here: >> >> https://patchwork.kernel.org/patch/11360007/ > > After you tried the above patch instead of the problem patch, > do one more test and apply the below on current linux-next. > Please, say which of the patches makes your kern

Re: [5.6.0-rc2-next-20200218/powerpc] Boot failure on POWER9

2020-02-18 Thread Sachin Sant
>> Yes, I can recreate the same problem with the patch applied on top of >> 5.6.0-rc2. > > And just to make sure. This was with > http://lkml.kernel.org/r/fff0e636-4c36-ed10-281c-8cdb0687c...@virtuozzo.com > right? > Yes, the same patch. > If yes, is it possible that the specific node is som

2.6.31-rc7 : kernel BUG at drivers/rtc/rtc-ps3.c:36!

2009-08-24 Thread Sachin Sant
;tb_val); BUG_ON(result); I had never tried enabling CONFIG_RTC_DRV_PS3 option before so not sure if this is a new problem or an old one. Thanks -Sachin -- --------- Sachin Sant IBM Linux Technology Center India Systems and Technolog

Re: [PATCH for 2.6.31] powerpc/ps3: Add missing check for PS3 to rtc-ps3 platform device registration

2009-08-24 Thread Sachin Sant
Geert Uytterhoeven wrote: On non-PS3, we get: | kernel BUG at drivers/rtc/rtc-ps3.c:36! because the rtc-ps3 platform device is registered unconditionally in a kernel with builtin support for PS3. Reported-by: Sachin Sant Signed-off-by: Geert Uytterhoeven --- arch/powerpc/platforms/ps3

Re: [FTRACE] Enabling function_graph causes OOPS

2009-09-08 Thread Sachin Sant
} 1) + 75.274 us | } 1) | .die() { 1) |.oops_enter() { Thanks -Sachin -- ----- Sachin Sant IBM Linux Technology Center India Systems and Technol

Re: [FTRACE] Enabling function_graph causes OOPS

2009-09-09 Thread Sachin Sant
does some crazy crap with it. -- Steve -- - Sachin Sant IBM Linux Technology Center India Systems and Technology Labs Bangalore, India - ___ Linuxppc-dev mailing list Linuxpp

Re: [FTRACE] Enabling function_graph causes OOPS

2009-09-10 Thread Sachin Sant
Steven Rostedt wrote: On Thu, 2009-09-10 at 11:02 +0530, Sachin Sant wrote: Steven Rostedt wrote: Ah, seems the bug happens to be in the module handling. Does the call back always have .mod_return_to_handler? Yes. Every time it ends up in .mod_return_to_handler BTW

Re: 2.6.31-git5 kernel boot hangs on powerpc

2009-09-17 Thread Sachin Sant
e8 a1 00 88 ld r5,136(r1) 1ab4: 7c 09 00 2a ldx r0,r9,r0 1ab8: 7c 63 02 14 add r3,r3,r0 1abc: 7c 63 b2 14 add r3,r3,r22 1ac0: 48 00 00 01 bl 1ac0 <.pcpu_alloc+0x754> 1ac

Re: 2.6.31-git5 kernel boot hangs on powerpc

2009-09-19 Thread Sachin Sant
Sachin Sant wrote: Tejun Heo wrote: Ah... sorry about that. Sachin, is it possible for you to build the kernel with debug info and ask gdb where the stalling NIP is in the c file? <6>NET: Registered protocol family 10 <3>BUG: soft lockup - CPU#2 stuck for 61s! [modprobe:1865

2.6.31-git10 : perf counters build failure on powerpc

2009-09-20 Thread Sachin Sant
l/perf_counter.o] Error 1 make: *** [arch/powerpc/kernel] Error 2 Thanks -Sachin -- ----- Sachin Sant IBM Linux Technology Center India Systems and Technology Labs Bangalore, India - ___ Linuxppc

Re: 2.6.31-git5 kernel boot hangs on powerpc

2009-09-23 Thread Sachin Sant
Sachin Sant wrote: Sachin Sant wrote: Tejun Heo wrote: Ah... sorry about that. Sachin, is it possible for you to build the kernel with debug info and ask gdb where the stalling NIP is in the c file? <6>NET: Registered protocol family 10 <3>BUG: soft lockup - CPU#2 stuck for 61

Re: 2.6.31-git5 kernel boot hangs on powerpc

2009-09-24 Thread Sachin Sant
Tejun Heo wrote: Can you please apply the attached patch and see whether anything interesting shows up in the kernel log? Thanks Tejun for the debug patch. Attached here are the relevant logs. The only messages related to percpu in the logs are <6>PERCPU: Embedded 2 pages/cpu @c12000

Re: 2.6.31-git5 kernel boot hangs on powerpc

2009-09-24 Thread Sachin Sant
Tejun Heo wrote: Sachin Sant wrote: Tejun Heo wrote: Can you please apply the attached patch and see whether anything interesting shows up in the kernel log? Thanks Tejun for the debug patch. Attached here are the relevant logs. The only messages related to percpu in the

Re: 2.6.31-git5 kernel boot hangs on powerpc

2009-09-25 Thread Sachin Sant
8 -> 16 c000db70fb00 <4>PERCPU: relocated <4>PERCPU: chunk 1, alloc pages [0,1) <4>PERCPU: chunk 1, map pages [0,1) <4>PERCPU: map 0xd7f0, 1 pages 53544 <4>PERCPU: map 0xd7fffff80000, 1 pages 53545 <4>PERCPU: chunk 1, will clear 4096b/un

Re: 2.6.31-git5 kernel boot hangs on powerpc

2009-09-25 Thread Sachin Sant
Tejun Heo wrote: Tejun Heo wrote: Hello, Sachin Sant wrote: <4>PERCPU: chunk 1 relocating -1 -> 18 c000db70fb00 <4>PERCPU: relocated <4>PERCPU: chunk 1 relocating 18 -> 16 c000db70fb00 <4>PERCPU: relocated <4>PERCPU: chunk 1, alloc pages

Re: 2.6.31-git5 kernel boot hangs on powerpc

2009-10-04 Thread Sachin Sant
bdb8 7c0903a6 mtctr r0 c004bdbc 4182002c beq c004bde8# .memset+0x88/0xfc c004bdc0 f886 std r4,0(r6) At this point R06 contains d7f0. Have attached the xmon log. Thanks -Sachin -- ------

Re: [FTRACE] Enabling function_graph causes OOPS

2009-10-07 Thread Sachin Sant
unction_graph. Thanks -Sachin -- ----- Sachin Sant IBM Linux Technology Center India Systems and Technology Labs Bangalore, India - diff -Naurp a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S --- a/arch/powerpc/kern

[PATCH] Ftrace : fix function_graph tracer OOPS

2009-10-08 Thread Sachin Sant
Enabling function graph causes oops due to usage of LOAD_REG_IMMEDIATE(). As explained by Ben the usage of LOAD_REG_IMMEDIATE generates relocs that are not supported when CONFIG_RELOCATABLE is set. Switch to LOAD_REG_ADDR(). Signed-off-by : Sachin Sant --- Enabling function graph causes oops

[RESEND][PATCH]Ftrace - fix function_graph tracer OOPS

2009-10-09 Thread Sachin Sant
(). Signed-off-by : Sachin Sant --- diff -Naurp old/arch/powerpc/kernel/entry_64.S new/arch/powerpc/kernel/entry_64.S --- old/arch/powerpc/kernel/entry_64.S 2009-10-08 18:37:44.0 +0530 +++ new/arch/powerpc/kernel/entry_64.S 2009-10-08 18:34:33.0 +0530 @@ -1038,8 +1038,8 @@ _GLOBAL

Re: [PATCH] powerpc/mm: Fix hang accessing top of vmalloc space

2009-10-13 Thread Sachin Sant
ection from the assembly, we now always do the comparison between vmalloc and ioremap. Signed-off-by; Benjamin Herrenschmidt --- Sachin, can you verify that works for you ? Works great. Thanks Ben. Tested by: Sachin Sant Regards -Sachin -- --------- Sachin Sant IBM L

Re: [PATCH] Ftrace : fix function_graph tracer OOPS

2009-10-13 Thread Sachin Sant
Steven Rostedt wrote: On Thu, 2009-10-08 at 20:21 +0530, Sachin Sant wrote: Switch to LOAD_REG_ADDR(). Signed-off-by : Sachin Sant --- diff -Naurp old/arch/powerpc/kernel/entry_64.S new/arch/powerpc/kernel/entry_64.S --- old/arch/powerpc/kernel/entry_64.S 2009-10-08 18:37:44.0

[powerpc] Next tree Nov 2 : kernel BUG at mm/mmap.c:2135!

2009-11-02 Thread Sachin Sant
cr = 24000442 ctr = c02f0cb0 xer = 200a trap = 700 3:mon> Have attached the boot log. Next tree for 20091030 worked fine. Thanks -Sachin -- ----- Sachin Sant IBM Linux Technology Center India Systems and Technology Labs Bangalore, Indi

Re: [powerpc] Next tree Nov 2 : kernel BUG at mm/mmap.c:2135!

2009-11-04 Thread Sachin Sant
Sachin Sant wrote: Today's next tree failed to boot on a POWER 6 box with : [ cut here ] kernel BUG at mm/mmap.c:2135! Oops: Exception in kernel mode, sig: 5 [#2] SMP NR_CPUS=1024 NUMA pSeries Problem exists with today's next as well. Likely cause for th

Re: [powerpc] Next tree Nov 2 : kernel BUG at mm/mmap.c:2135!

2009-11-12 Thread Sachin Sant
David Gibson wrote: On Wed, Nov 04, 2009 at 06:08:44PM +0530, Sachin Sant wrote: Sachin Sant wrote: Today's next tree failed to boot on a POWER 6 box with : [ cut here ] kernel BUG at mm/mmap.c:2135! Oops: Exception in kernel mode, sig: 5 [#2] SMP NR_CPUS

Re: [powerpc] Next tree Nov 2 : kernel BUG at mm/mmap.c:2135!

2009-11-13 Thread Sachin Sant
c00085b4 syscall_exit+0x0/0x40 --- Exception: c01 (System Call) at 0fff89a8ff40 SP (fffdf8a2460) is in userspace Have attached the complete boot log. At the time of crash values of mm and mm->nr_ptes were <7>exit_mmap(): mm c000fa9f9580 nr_ptes 1 Thanks -Sachin -- -

Re: [powerpc] Next tree Nov 2 : kernel BUG at mm/mmap.c:2135!

2009-11-16 Thread Sachin Sant
available for you to debug this issue. Thanks -Sachin -- ----- Sachin Sant IBM Linux Technology Center India Systems and Technology Labs Bangalore, India - [ cut here ] kernel BUG at mm/mmap.c:2142! cpu 0x3: V

Re: Fix bug in pagetable cache cleanup with CONFIG_PPC_SUBPAGE_PROT

2009-11-23 Thread Sachin Sant
_context_t. Signed-off-by: David Gibson Thanks David for the patch. With this patch on top of next-20091123 my test machine boots fine. Regards -Sachin -- ----- Sachin Sant IBM Linux Technology Center India Systems and Technology Labs Bangal

[-next Nov 25] eHEA driver failure during boot.

2009-11-26 Thread Sachin Sant
Thanks -Sachin -- ----- Sachin Sant IBM Linux Technology Center India Systems and Technology Labs Bangalore, India - ___ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozl

Re: Fix bug in pagetable cache cleanup with CONFIG_PPC_SUBPAGE_PROT (v2)

2009-12-04 Thread Sachin Sant
ks -Sachin -- ----- Sachin Sant IBM Linux Technology Center India Systems and Technology Labs Bangalore, India - ___ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev

[Next] CPU Hotplug test failures on powerpc

2009-12-11 Thread Sachin Sant
mp;m=125802682922299&w=2 I will try few more iterations with and without the above patch just to make sure i have the correct results. If someone has a suggestion let me know. Thanks -Sachin -- - Sachin Sant IBM Linux Technology Center India Systems and Technology Labs Bangalore, India - ___ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev

Re: [Next] CPU Hotplug test failures on powerpc

2009-12-13 Thread Sachin Sant
Benjamin Herrenschmidt wrote: On Fri, 2009-12-11 at 16:23 +0530, Sachin Sant wrote: While executing cpu_hotplug(from autotest) tests against latest next on a power6 box, the machine locks up. A soft reset shows the following trace Have you heard anything about that one yet or it&#

Fix hash_utils_64.c compile errors with DEBUG enabled.

2009-12-13 Thread Sachin Sant
unsigned int’ arch/powerpc/mm/hash_utils_64.c:345: error: format ‘%08x’ expects type ‘unsigned int’, but argument 5 has type ‘long unsigned int’ arch/powerpc/mm/hash_utils_64.c: In function ‘htab_initialize’: ... SNIP ... Signed-off-by: Sachin Sant --- diff -Naurp a/arch/powerpc/mm

[RESEND]Fix hash_utils_64.c compile errors with DEBUG enabled.

2009-12-13 Thread Sachin Sant
lize': arch/powerpc/mm/hash_utils_64.c:666: error: format '%x' expects type 'unsigned int', but argument 4 has type 'long unsigned int' ... SNIP ... Signed-off-by: Sachin Sant --- diff -Naurp a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c -

Re: [Next] CPU Hotplug test failures on powerpc

2009-12-14 Thread Sachin Sant
Peter Zijlstra wrote: On Fri, 2009-12-11 at 16:23 +0530, Sachin Sant wrote: While executing cpu_hotplug(from autotest) tests against latest next on a power6 box, the machine locks up. A soft reset shows the following trace cpu 0x0: Vector: 100 (System Reset) at [cc9333d0] pc

Next 12 : arch/powerpc/sysdev/axonram build failure

2009-03-12 Thread Sachin Sant
achin -- - Sachin Sant IBM Linux Technology Center India Systems and Technology Labs Bangalore, India - ___ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/lis

Re: 2.6.29-rc7-git2 : crash in kmem_list3_init()

2009-03-12 Thread Sachin Sant
to find a solution for this issue ? Thanks -Sachin -- - Sachin Sant IBM Linux Technology Center India Systems and Technology Labs Bangalore, India - ___ Linuxppc-dev mailing list Linuxppc

Re: Next 12 : arch/powerpc/sysdev/axonram build failure

2009-03-12 Thread Sachin Sant
rks. Thanks. Regards -Sachin -- ----- Sachin Sant IBM Linux Technology Center India Systems and Technology Labs Bangalore, India - ___ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org ht

Re: Next March 25: Boot failure on powerpc [recursive locking detected]

2009-03-25 Thread Sachin Sant
Sachin Sant wrote: Today's next failed to boot on a powerpc box (Power6 blade IBM,7998-61X) with following recursive locking message. = [ INFO: possible recursive locking detected ] 2.6.29-next-20090325 #1 After bisecting the failure seems

[ppc64] 2.6.29-git7 : offlining a cpu causes an exception

2009-03-31 Thread Sachin Sant
. Thanks -Sachin [1] -> CPU Hotplug test which is part of LTP. -- ----- Sachin Sant IBM Linux Technology Center India Systems and Technology Labs Bangalore, India - <6>Phyp-dump disabled at boot time. <6>Using pSeries mach

Re: [ppc64] 2.6.29-git7 : offlining a cpu causes an exception

2009-03-31 Thread Sachin Sant
Benjamin Herrenschmidt wrote: On Tue, 2009-03-31 at 14:57 +0530, Sachin Sant wrote: While executing CPU HotPlug[1] tests i observed that during every cpu offline process an exception is thrown. Looks like a BUG_ON() to me... can you look at what other messages just before that ? I

[Patch next] powerpc: pseries/dtl.c should include asm/firmware.h

2009-04-01 Thread Sachin Sant
(first use in this function) arch/powerpc/platforms/pseries/dtl.c:238: error: (Each undeclared identifier is reported only once arch/powerpc/platforms/pseries/dtl.c:238: error: for each function it appears in.) Signed-off-by : Sachin Sant --- * Fixes the following build error * * arch/powerpc

Re: [ppc64] 2.6.29-git7 : offlining a cpu causes an exception

2009-04-01 Thread Sachin Sant
Sachin Sant wrote: Benjamin Herrenschmidt wrote: On Tue, 2009-03-31 at 14:57 +0530, Sachin Sant wrote: While executing CPU HotPlug[1] tests i observed that during every cpu offline process an exception is thrown. Looks like a BUG_ON() to me... can you look at what other messages just

Re: [Patch next] powerpc: pseries/dtl.c should include asm/firmware.h

2009-04-01 Thread Sachin Sant
gger to move to a different mail client. Thanks Mikey. Regards -Sachin -- --------- Sachin Sant IBM Linux Technology Center India Systems and Technology Labs Bangalore, India - ___ Linuxppc-d

2.6.29-git12 : lockdep warning

2009-04-05 Thread Sachin Sant
0 [c000541ffdc0] [c0161748] .compat_sys_open+0x24/0x38 [c000541ffe30] [c0008554] syscall_exit+0x0/0x40 Thanks -Sachin -- ----- Sachin Sant IBM Linux Technology Center India System

[2.6.30-rc1] Crash in .hpte_need_flush with hugetlbfs test[shm-fork]

2009-04-08 Thread Sachin Sant
anks -Sachin -- ----- Sachin Sant IBM Linux Technology Center India Systems and Technology Labs Bangalore, India - 72 bind 65536). <6>TCP reno registered. <6>NET: Registered protocol family 1. <6>Unpacking initramfs... do

[CFQ/OOPS] rb_erase with April 9 next tree

2009-04-09 Thread Sachin Sant
8 ctr = c02e35ac xer = 0001 trap = 300 dar = 0010 dsisr = 4000 On subsequent reboots, i observed similar oops during bootup. I have attached the oops message here. Let me know if i can provide any other information. Thanks -Sachin -- ---

Re: [CFQ/OOPS] rb_erase with April 9 next tree

2009-04-09 Thread Sachin Sant
rb_node); + RB_CLEAR_NODE(&cfqq->p_node); INIT_LIST_HEAD(&cfqq->fifo); atomic_set(&cfqq->ref, 0); Yes. The above patch fixed this oops. Thanks Regards -Sachin -- ----- Sachin Sant IBM Linux Technol

Re: [ppc64] 2.6.29-git7 : offlining a cpu causes an exception

2009-04-15 Thread Sachin Sant
Sachin Sant wrote: Sachin Sant wrote: Benjamin Herrenschmidt wrote: On Tue, 2009-03-31 at 14:57 +0530, Sachin Sant wrote: While executing CPU HotPlug[1] tests i observed that during every cpu offline process an exception is thrown. Looks like a BUG_ON() to me... can you look at what

Re: [ppc64] 2.6.29-git7 : offlining a cpu causes an exception

2009-04-16 Thread Sachin Sant
nline cpus without any problem. Thanks -Sachin -- - Sachin Sant IBM Linux Technology Center India Systems and Technology Labs Bangalore, India - ___ Linuxppc-dev mailing list Linuxpp

Next April 24 : BUG: lock held at task exit time!

2009-04-23 Thread Sachin Sant
ached. Let me know if you need any other info. I will try yesterday's next tree to check if this problem can be recreated. Thanks -Sachin -- ----- Sachin Sant IBM Linux Technology Center India Systems and Technology Labs Bangal

Re: Next April 28: boot failure on PowerPC with SLQB

2009-04-29 Thread Sachin Sant
rmation. Thanks -Sachin -- ----- Sachin Sant IBM Linux Technology Center India Systems and Technology Labs Bangalore, India - ___ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://oz

Re: Next April 28: boot failure on PowerPC with SLQB

2009-04-29 Thread Sachin Sant
tch i don't get any extra information other that what is already reported. Have attached the boot log captured using loglevel=8 mminit_loglevel=4 options. Thanks -Sachin -- ----- Sachin Sant IBM Linux Technology Center India Systems and Technology Labs Bangal

Re: Next April 28: boot failure on PowerPC with SLQB

2009-04-29 Thread Sachin Sant
Nick Piggin wrote: On Thu, Apr 30, 2009 at 11:06:36AM +0530, Sachin Sant wrote: Hmm, OK. Can you post the disassembly of your pidmap_init please? Here is the information. Unable to handle kernel paging request for data at address 0x0010 Faulting instruction address

Re: Next April 28: boot failure on PowerPC with SLQB

2009-04-30 Thread Sachin Sant
ore majordomo info at http://vger.kernel.org/majordomo-info.html -- ----- Sachin Sant IBM Linux Technology Center India Systems and Technology Labs Bangalore, India - ___ Linuxppc-dev

Re: [Next] CPU Hotplug test failures on powerpc

2009-12-15 Thread Sachin Sant
es XMON dest_cpu = 1024 . dead_cpu = 1 . nr_cpu_ids = 2 XMON dest_cpu = 0 XMON dest_cpu = 1024 . dead_cpu = 1 . nr_cpu_ids = 2 XMON dest_cpu = 0 XMON dest_cpu = 1024 . dead_cpu = 1 . nr_cpu_ids = 2 XMON dest_cpu = 0 Let me know if i should try to record any specific value ? Thanks -Sachin --

Re: [Next] CPU Hotplug test failures on powerpc

2009-12-15 Thread Sachin Sant
000,, ,,,,,,,, ,,0002 XMON dest_cpu = 1 hope i got the data correct. Thanks -Sachin -- ----- Sachin Sant IBM Linux Technology Center India Systems and Technology Labs Bang

Re: [Next] CPU Hotplug test failures on powerpc

2009-12-15 Thread Sachin Sant
uot;, "online" etc for SMP and UP case */ set_cpu_online(cpu, true); + set_cpu_active(cpu, true); set_cpu_present(cpu, true); set_cpu_possible(cpu, true); } -- ----- Sachin Sant IBM Linux Technology Center India Systems a

Re: [Next] CPU Hotplug test failures on powerpc

2009-12-15 Thread Sachin Sant
Xiaotian Feng wrote: Does this testcase hotplug cpu 0 off? No, i don't think so. It skips cpu0 during online/offline process. thanks -Sachin -- - Sachin Sant IBM Linux Technology Center India Systems and Technology Labs Bangalore,

Re: [Next] CPU Hotplug test failures on powerpc

2009-12-15 Thread Sachin Sant
Xiaotian Feng wrote: On Wed, Dec 16, 2009 at 2:41 PM, Sachin Sant wrote: Xiaotian Feng wrote: Does this testcase hotplug cpu 0 off? No, i don't think so. It skips cpu0 during online/offline process. Then how could this happen ? Looks like cpu 0 is offline

Re: [Next] CPU Hotplug test failures on powerpc

2009-12-16 Thread Sachin Sant
); return -ENOMEM; + } cpu_hotplug_begin(); err = __raw_notifier_call_chain(&cpu_chain, CPU_DOWN_PREPARE | mod, Unless of course, I messed up, which appears to be rather likely given these problems ;-) -- ----- Sachin S

[-next Feb 18] PowerPC boot failure (Unknowd ADD relocation :26)

2010-02-18 Thread Sachin Sant
ks -Sachin -- ----- Sachin Sant IBM Linux Technology Center India Systems and Technology Labs Bangalore, India - Using 00825420 bytes for initrd buffer Please wait, loading kernel... Allocated 00f0 bytes for kernel @ 00d0 Elf64 kernel loaded... Loading ramdisk... ramd

Re: [-next Feb 18] PowerPC boot failure (Unknowd ADD relocation :26)

2010-02-21 Thread Sachin Sant
Sachin Sant wrote: Yesterday's next failed to boot on various powerpc boxes with following error : NET: Registered protocol family 15 registered taskstats version 1 Freeing unused kernel memory: 640k freed doing fast boot scsi_mod: Unknown ADD relocation: 26 WARNING: Error inserting scs

Re: [PATCH] powerpc: Fix lwsync feature fixup vs. modules on 64-bit

2010-02-26 Thread Sachin Sant
boxes with it. thanks -Sachin -- ----- Sachin Sant IBM Linux Technology Center India Systems and Technology Labs Bangalore, India - ___ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs

[PowerPC] 2.6.33-git11 : Badness at kernel/kprobes.c:264

2010-03-06 Thread Sachin Sant
oduced by commit 4610ee1d36... kprobes: Introduce generic insn_slot framework Thanks -Sachin -- ----- Sachin Sant IBM Linux Technology Center India Systems and Technology Labs Bangalore, India -

Re: [PowerPC] 2.6.33-git11 : Badness at kernel/kprobes.c:264

2010-03-08 Thread Sachin Sant
eof(kprobe_opcode_t)); if (idx >= 0 && idx < slots_per_page(c)) { WARN_ON(kip->slot_used[idx] != SLOT_USED); if (dirty) { -- - Sachin Sant IBM Linux Technology Center India Systems

34-rc1-git3 build failure with CGROUP_MEM_RES_CTLR_SWAP=y

2010-03-14 Thread Sachin Sant
-- - Sachin Sant IBM Linux Technology Center India Systems and Technology Labs Bangalore, India - ___ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev

2.6.34-rc2 fails to boot on powerpc

2010-03-20 Thread Sachin Sant
ole' speed This problem seem to have started with 2.6.34-rc1-git9 (352d4657b23fbd329efccc396000a549e0150907). Haven't yet tried a git bisect. Boot log attached Thanks -Sachin -- ----- Sachin Sant IBM Linux Technology Center India Systems and Technology L

Re: [PATCH 4/7] hvc_console: Fix race between hvc_close and hvc_remove

2010-03-26 Thread Sachin Sant
istinfo/linuxppc-dev -- ----- Sachin Sant IBM Linux Technology Center India Systems and Technology Labs Bangalore, India - ___ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org http

Re: [PATCH 4/7] hvc_console: Fix race between hvc_close and hvc_remove

2010-03-26 Thread Sachin Sant
Amit Shah wrote: On (Fri) Mar 26 2010 [14:43:56], Sachin Sant wrote: And this suggests that hvc_kick() is called before hvc_task is initialised, ie, before hvc_init() is called. Does this help? Hi Amit, I too ran into this issue as reported by Anton. Unfortunately in my case the

2.6.34-rc3: Badness at kernel/lockdep.c:2706

2010-04-01 Thread Sachin Sant
033b20] .kernel_thread+0x54/0x70 Instruction dump: e93e8190 8009 2f80 409e03f8 48280539 6000 2fa3 419e03e8 e93e8198 8009 2f80 409e03d8 <0fe0> 480003d0 e93e8140 fb9d Uniform Multi-Platform E-IDE driver Thanks -Sachin -- ----- Sachi

Re: 2.6.34-rc3 : Badness at lib/dma-debug.c:820 during ibmvscsi init

2010-04-01 Thread Sachin Sant
FUJITA Tomonori wrote: On Fri, 02 Apr 2010 10:48:55 +0530 Sachin Sant wrote: 2.6.34-rc3 boot on a power5 box produces this badness message during ibmvscsi initialization. ibmvscsi 3003: Client reserve enabled ibmvscsi 3003: sent SRP login ibmvscsi 3003: SRP_LOGIN succeeded

Re: 2.6.34-rc3: Badness at kernel/lockdep.c:2706

2010-04-03 Thread Sachin Sant
Eric W. Biederman wrote: Could you try the fix Wolfram Sang sent to linux-kernel yesterday? Yes that fixed the issue for me. Thanks Eric. Regards -Sachin -- - Sachin Sant IBM Linux Technology Center India Systems and Technology Labs Bangalore, India

Re: [PATCH 4/7] hvc_console: Fix race between hvc_close and hvc_remove

2010-04-06 Thread Sachin Sant
if (hp->ops->notifier_del) hp->ops->notifier_del(hp, hp->data); -- ----- Sachin Sant IBM Linux Technology Center India System

Re: [-next April 8] eHEA driver failure on powerpc

2010-04-09 Thread Sachin Sant
Sachin Sant wrote: With today's next release, eHEA network interface on couple of power6 boxes fails to initialize. # modprobe ehea IBM eHEA ethernet device driver (Release EHEA_0102) alloc irq_desc for 256 on node 0 alloc kstat_irqs on node 0 irq: irq 590080 on host null mapped to vi

-next Apr 30: OOPS during eHEA driver initialization

2010-04-30 Thread Sachin Sant
83e378 389f0040 4bfffdbd 7c63e838 7c7d07b4 2fbd 409e0030 3bff00c8 <881f> 2f80 409eff60 881f0020 ---[ end trace cb522a034d760fb8 ]--- next-20100428 was OK. Will try to bisect. Thanks -Sachin -- ----- Sachin Sant IBM Linux Technology Center India System

Re: -next Apr 30: OOPS during eHEA driver initialization

2010-04-30 Thread Sachin Sant
Sachin Sant wrote: With today's next eHEA drivers fails to initialize. If i revert the following patch eHEA network interface is initialized properly. commit cebfe0b6709abdab997c1a00499d67efa32ee1f0 drivercore: Add of_match_table to the common device drivers Thanks -Sachin IBM

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