Hi Seth, On Monday 12 March 2012 09:34:35 Seth Jennings wrote: > On 02/14/2012 10:21 AM, Marc Dietrich wrote: > > On Tuesday 14 February 2012 08:35:13 Seth Jennings wrote: > >> On 02/14/2012 05:39 AM, Marc Dietrich wrote: > >>> Am 14.02.2012 12:22, schrieb Marc Dietrich: > >>>> Am 13.02.2012 15:47, schrieb Seth Jennings: > >>>>> linux/vmalloc.h added to zsmalloc-main.c to resolve implicit > >>>>> declaration errors. > >>>>> > >>>>> X86 dependency added to zsmalloc and dependent drivers zcache > >>>>> and > >>>>> zram. > >>>>> > >>>>> This X86 only requirement is not ideal. Working to find > >>>>> portable > >>>>> functions for __flush_tlb_one and set_pte. > >>>> > >>>> sorry, zcache/zram works fine one ARM here. Why not depend on > >>>> !POWERPC? > >>> > >>> ups, sorry again, I tested an older version only. flush_tlb_one and > >>> set_pte is only used with the new allocator as it seems. > >> > >> It would seem that the cpu-local tlb page flushing function for ARM > >> is local_flush_tlb_kernel_page(), by look at the kmap_atomic() code > >> in arch/arm/mm/highmem.c. > >> > >> So each arch is using a slightly different approach here. > >> > >> A simple #define per-arch could make a it a common call. I think > >> I'm going to code it up and see how it goes. > > > > ... and I'm happy to test it ;-) > > So I have a branch ready for you to test if your are willing > > git://github.com/spartacus06/linux.git -b portable ok, I took three patches I found relavant: 454bded136: staging: zsmalloc: change type of vm_area 33258b4c9d: staging: zcache: use portable cpu-local tlb flush 15959dc488: staging: add ARM/PPC64 to zcache/zram/zsmalloc Kconfig and also backported: cd12909cb5: xen: map foreign pages for shared rings by updating the PTEs directly to my 3.0 tree which has all changes for zcache/frontswap/zram/cleancache backported from linux-next (sorry, other kernels are more hard to test on this machine). > The branch is based on Greg's staging-next, since my > patches that remove the sparsemem dependency are in there. > The frontswap_v11 patches are in that branch as well. > > I did a simple make test with my ARM cross compiler and it > builds cleanly. Now I just need to know if it _works_. > > I'm not sure if you have been experimenting with frontswap > since it's not in mainline yet, but you can enable/disable > it in: > > Kernel Features -> Enable frontswap to cache swap pages if tmem is present > > Only the frontswap paths use zsmalloc right now. We are looking > to use it for the cleancache paths too soon (I'm working on > that now). > > I'd appreciate any feedback you can provide! I enabled zram (for swap), frontswap and cleancache. In a short test, my half proprietary display driver crashes [ 204.951006] Unable to handle kernel NULL pointer dereference at virtual address 00000000 [ 204.959130] pgd = c1018000 [ 204.961829] [00000000] *pgd=00000000 [ 204.965421] Internal error: Oops: 5 [#1] SMP [ 204.969682] Modules linked in: nls_iso8859_1 nls_cp437 vfat fat fuse zram(C) snd_soc_alc5632 rt2800usb snd_seq_dummy rt2800lib rt2x00usb snd_soc_tegra_pcm rt2x00lib mac80211 snd_seq_oss snd_seq_midi_event cdc_ether snd_soc_tegra_i2s usbnet snd_soc_tegra_das snd_pcm_oss snd_soc_tegra_alc5632 cdc_wdm snd_mixer_oss mii snd_soc_core cdc_acm cfg80211 uvcvideo snd_seq videodev snd_pcm tegra_wdt snd_seq_device snd_timer snd_soc_tegra_utils lm90 snd soundcore snd_page_alloc [ 205.011152] CPU: 0 Tainted: G C (3.0.19 #28) [ 205.016551] PC is at get_zspage_mapping+0x14/0x48 [ 205.021247] LR is at zs_map_object+0x60/0x1a0 [ 205.025597] pc : [<c036179c>] lr : [<c0361b70>] psr: 400f0013 [ 205.025603] sp : c3ca5978 ip : c3ca5988 fp : c3ca5984 [ 205.037062] r10: 000197c8 r9 : d86c5000 r8 : 00005045 [ 205.042275] r7 : c06ae000 r6 : dacf0000 r5 : 00000fc3 r4 : c074e8a0 [ 205.048790] r3 : 00080068 r2 : c3ca5994 r1 : c3ca5990 r0 : 00000000 [ 205.055306] Flags: nZcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user [ 205.062428] Control: 10c5387d Table: 0101804a DAC: 00000015 [ 205.068164] Process plugin-containe (pid: 1771, stack limit = 0xc3ca42f8) [ 205.074940] Stack: (0xc3ca5978 to 0xc3ca6000) <stack snipped> [ 205.512112] [<c036179c>] (get_zspage_mapping+0x14/0x48) from [<c0361b70>] (zs_map_object+0x60/0x1a0) [ 205.521247] [<c0361b70>] (zs_map_object+0x60/0x1a0) from [<bf0186a0>] (zram_bvec_rw.isra.4+0x4b4/0x5b8 [zram]) [ 205.531262] [<bf0186a0>] (zram_bvec_rw.isra.4+0x4b4/0x5b8 [zram]) from [<bf018c20>] (zram_make_request+0x178/0x244 [zram]) [ 205.542304] [<bf018c20>] (zram_make_request+0x178/0x244 [zram]) from [<c0242490>] (generic_make_request+0x46c/0x504) [ 205.552816] [<c0242490>] (generic_make_request+0x46c/0x504) from [<c024264c>] (submit_bio+0x124/0x164) [ 205.562117] [<c024264c>] (submit_bio+0x124/0x164) from [<c012c37c>] (swap_writepage+0xfc/0x114) [ 205.570818] [<c012c37c>] (swap_writepage+0xfc/0x114) from [<c010fc50>] (shrink_page_list+0x3ec/0x810) [ 205.580030] [<c010fc50>] (shrink_page_list+0x3ec/0x810) from [<c011046c>] (shrink_inactive_list+0x1fc/0x3f4) [ 205.589846] [<c011046c>] (shrink_inactive_list+0x1fc/0x3f4) from [<c0110a50>] (shrink_zone+0x3ec/0x508) [ 205.599230] [<c0110a50>] (shrink_zone+0x3ec/0x508) from [<c01115f4>] (try_to_free_pages+0x188/0x434) [ 205.608364] [<c01115f4>] (try_to_free_pages+0x188/0x434) from [<c0106e10>] (__alloc_pages_nodemask+0x3f0/0x634) [ 205.618450] [<c0106e10>] (__alloc_pages_nodemask+0x3f0/0x634) from [<c02a0fc0>] (nvmap_alloc_pages_exact.constprop.4+0x4c/0x108) [ 205.630004] [<c02a0fc0>] (nvmap_alloc_pages_exact.constprop.4+0x4c/0x108) from [<c02a1150>] (handle_page_alloc.isra.3+0xd4/0x16c) [ 205.641644] [<c02a1150>] (handle_page_alloc.isra.3+0xd4/0x16c) from [<c02a1480>] (nvmap_alloc_handle_id+0x198/0x2c4) [ 205.652156] [<c02a1480>] (nvmap_alloc_handle_id+0x198/0x2c4) from [<c02a3184>] (nvmap_ioctl_alloc+0xa0/0xb8) [ 205.661974] [<c02a3184>] (nvmap_ioctl_alloc+0xa0/0xb8) from [<c029fd48>] (nvmap_ioctl+0x1b4/0x234) [ 205.670925] [<c029fd48>] (nvmap_ioctl+0x1b4/0x234) from [<c0146734>] (do_vfs_ioctl+0x4fc/0x570) [ 205.679615] [<c0146734>] (do_vfs_ioctl+0x4fc/0x570) from [<c0146808>] (sys_ioctl+0x60/0x84) [ 205.687971] [<c0146808>] (sys_ioctl+0x60/0x84) from [<c0053dc0>] (ret_fast_syscall+0x0/0x30) [ 205.696399] Code: e92dd800 e24cb004 e92d4000 e8bd4000 (e5903000) [ 205.703172] ---[ end trace 679c2bb67298abde ]--- nvmap used alloc_vm_area which got a second paramter in newer kernels. I just replaced it with NULL, but that seems to be the wrong way. I don't want to bother you with boring details. I booted without the xorg driver (so the kernel interface is not used) and got Mar 12 21:20:28 ac100 kernel: [ 118.264433] ------------[ cut here ]------------ Mar 12 21:20:28 ac100 kernel: [ 118.264523] WARNING: at /home/marc/ac100/marvin24s-kernel/drivers/staging/zcache/zcache-main.c:755 zcache_pampd_get_data+0x88/0x14c() Mar 12 21:20:28 ac100 kernel: [ 118.264586] Modules linked in: nls_iso8859_1 nls_cp437 vfat fat fuse zram(C) snd_soc_alc5632 snd_seq_dummy rt2800usb rt2800lib rt2x00usb rt2x00lib snd_soc_tegra_alc5632 mac80211 snd_seq_oss snd_soc_tegra_pcm snd_soc_tegra_i2s snd_seq_midi_event snd_soc_tegra_das snd_soc_core snd_pcm_oss snd_mixer_oss uvcvideo videodev cfg80211 tegra_wdt snd_seq cdc_ether usbnet snd_pcm cdc_wdm cdc_acm mii snd_seq_device lm90 snd_timer snd soundcore snd_page_alloc snd_soc_tegra_utils Mar 12 21:20:28 ac100 kernel: [ 118.265176] [<c005acac>] (unwind_backtrace+0x0/0xec) from [<c0444314>] (dump_stack+0x20/0x24) Mar 12 21:20:28 ac100 kernel: [ 118.265290] [<c0444314>] (dump_stack+0x20/0x24) from [<c00860bc>] (warn_slowpath_common+0x5c/0x74) Mar 12 21:20:28 ac100 kernel: [ 118.265385] [<c00860bc>] (warn_slowpath_common+0x5c/0x74) from [<c0086100>] (warn_slowpath_null+0x2c/0x34) Mar 12 21:20:28 ac100 kernel: [ 118.265474] [<c0086100>] (warn_slowpath_null+0x2c/0x34) from [<c035ed9c>] (zcache_pampd_get_data+0x88/0x14c) Mar 12 21:20:28 ac100 kernel: [ 118.265566] [<c035ed9c>] (zcache_pampd_get_data+0x88/0x14c) from [<c0361028>] (tmem_get+0x160/0x19c) Mar 12 21:20:28 ac100 kernel: [ 118.265651] [<c0361028>] (tmem_get+0x160/0x19c) from [<c035fc98>] (zcache_get_page.constprop.16+0x8c/0xa8) Mar 12 21:20:28 ac100 kernel: [ 118.265737] [<c035fc98>] (zcache_get_page.constprop.16+0x8c/0xa8) from [<c035fd9c>] (zcache_frontswap_get_page+0x90/0xa0) Mar 12 21:20:28 ac100 kernel: [ 118.265843] [<c035fd9c>] (zcache_frontswap_get_page+0x90/0xa0) from [<c013037c>] (__frontswap_get_page+0x90/0xd8) Mar 12 21:20:28 ac100 kernel: [ 118.265934] [<c013037c>] (__frontswap_get_page+0x90/0xd8) from [<c012c3d8>] (swap_readpage+0x44/0xdc) Mar 12 21:20:28 ac100 kernel: [ 118.266020] [<c012c3d8>] (swap_readpage+0x44/0xdc) from [<c012c9c8>] (read_swap_cache_async+0xc8/0x11c) Mar 12 21:20:28 ac100 kernel: [ 118.266106] [<c012c9c8>] (read_swap_cache_async+0xc8/0x11c) from [<c012cab0>] (swapin_readahead+0x94/0x9c) Mar 12 21:20:28 ac100 kernel: [ 118.266204] [<c012cab0>] (swapin_readahead+0x94/0x9c) from [<c011ff20>] (handle_pte_fault+0x2f4/0x6c4) Mar 12 21:20:28 ac100 kernel: [ 118.266292] [<c011ff20>] (handle_pte_fault+0x2f4/0x6c4) from [<c01203a8>] (handle_mm_fault+0xb8/0xd0) Mar 12 21:20:28 ac100 kernel: [ 118.266382] [<c01203a8>] (handle_mm_fault+0xb8/0xd0) from [<c005f114>] (do_page_fault+0xf8/0x28c) Mar 12 21:20:28 ac100 kernel: [ 118.266483] [<c005f114>] (do_page_fault+0xf8/0x28c) from [<c004e170>] (do_DataAbort+0x44/0xa8) Mar 12 21:20:28 ac100 kernel: [ 118.266588] [<c004e170>] (do_DataAbort+0x44/0xa8) from [<c0053d64>] (ret_from_exception+0x0/0x10) Mar 12 21:20:28 ac100 kernel: [ 118.266645] Exception stack(0xdb86dfb0 to 0xdb86dff8) Mar 12 21:20:28 ac100 kernel: [ 118.266697] dfa0: b6f4cf68 b6f4e658 00000001 b6f4cee8 Mar 12 21:20:28 ac100 kernel: [ 118.266769] dfc0: 00000011 b6f4c8e8 b6f806ac b6f4b9c0 00000001 b6f4b988 bec64998 00000011 Mar 12 21:20:28 ac100 kernel: [ 118.266835] dfe0: b6f4cf68 bec64948 b6f2fc07 b6f2fc66 200f0030 ffffffff Mar 12 21:20:28 ac100 kernel: [ 118.266885] ---[ end trace 3a9bf99eb36a0d77 ]--- Mar 12 21:20:28 ac100 kernel: [ 118.266940] kernel BUG at /home/marc/ac100/marvin24s-kernel/drivers/staging/zcache/zcache-main.c:761! Mar 12 21:20:28 ac100 kernel: [ 118.276268] Unable to handle kernel NULL pointer dereference at virtual address 00000000 Mar 12 21:20:28 ac100 kernel: [ 118.284396] pgd = db2b4000 Mar 12 21:20:28 ac100 kernel: [ 118.287123] [00000000] *pgd=00000000 Mar 12 21:20:28 ac100 kernel: [ 118.290746] Internal error: Oops: 805 [#1] SMP Mar 12 21:20:28 ac100 kernel: [ 118.295212] Modules linked in: nls_iso8859_1 nls_cp437 vfat fat fuse zram(C) snd_soc_alc5632 snd_seq_dummy rt2800usb rt2800lib rt2x00usb rt2x00lib snd_soc_tegra_alc5632 mac80211 snd_seq_oss snd_soc_tegra_pcm snd_soc_tegra_i2s snd_seq_midi_event snd_soc_tegra_das snd_soc_core snd_pcm_oss snd_mixer_oss uvcvideo videodev cfg80211 tegra_wdt snd_seq cdc_ether usbnet snd_pcm cdc_wdm cdc_acm mii snd_seq_device lm90 snd_timer snd soundcore snd_page_alloc snd_soc_tegra_utils Mar 12 21:20:28 ac100 kernel: [ 118.337316] CPU: 1 Tainted: G WC (3.0.19 #29) Mar 12 21:20:28 ac100 kernel: [ 118.342765] PC is at __bug+0x2c/0x38 Mar 12 21:20:28 ac100 kernel: [ 118.346387] LR is at console_unlock+0x1ac/0x1c8 Mar 12 21:20:28 ac100 kernel: [ 118.350958] pc : [<c00576bc>] lr : [<c0086c70>] psr: 600f0193 Mar 12 21:20:28 ac100 kernel: [ 118.350985] sp : db86dc50 ip : db86db68 fp : db86dc5c Mar 12 21:20:28 ac100 kernel: [ 118.362488] r10: 00000001 r9 : 00000000 r8 : 00000018 Mar 12 21:20:28 ac100 kernel: [ 118.367744] r7 : ffffffea r6 : 0ca61001 r5 : d572b000 r4 : c06a8304 Mar 12 21:20:28 ac100 kernel: [ 118.374302] r3 : 00000000 r2 : 271aed0f r1 : 00000001 r0 : 0000006f Mar 12 21:20:28 ac100 kernel: [ 118.380864] Flags: nZCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment user Mar 12 21:20:28 ac100 kernel: [ 118.388122] Control: 10c5387d Table: 1b2b404a DAC: 00000015 Mar 12 21:20:28 ac100 kernel: [ 118.393901] Process init (pid: 1, stack limit = 0xdb86c2f8) Mar 12 21:20:28 ac100 kernel: [ 118.399503] Stack: (0xdb86dc50 to 0xdb86e000) Mar 12 21:20:28 ac100 kernel: [ 118.403898] dc40: db86dc8c db86dc60 c035ed80 c005769c Mar 12 21:20:28 ac100 kernel: [ 118.412128] dc60: db86dc6c c0104dd8 00000000 00001000 db86dd18 daed1794 daed1000 0ca61001 Mar 12 21:20:28 ac100 kernel: [ 118.420359] dc80: db86dcd4 db86dc90 c0361028 c035ed20 daed1000 db86dd18 00000018 00000000 Mar 12 21:20:28 ac100 kernel: [ 118.428586] dca0: 00000000 c095c560 ffffffff 000f0113 daed1000 db86dd18 c095c560 00000018 Mar 12 21:20:28 ac100 kernel: [ 118.436813] dcc0: 00000000 00000000 db86dd14 db86dcd8 c035fc98 c0360ed4 db86dcec 00000000 Mar 12 21:20:28 ac100 kernel: [ 118.445038] dce0: 00000000 000200da 00000000 00001000 00000000 c095c560 0000183f 0000003f Mar 12 21:20:28 ac100 kernel: [ 118.453266] dd00: 000000d0 c095c560 db86dd64 db86dd18 c035fd9c c035fc18 0000003f 00000000 Mar 12 21:20:28 ac100 kernel: [ 118.461488] dd20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Mar 12 21:20:28 ac100 kernel: [ 118.469716] dd40: 00000000 00000000 c05f9798 effffff0 000000c1 000200da db86dd7c db86dd68 Mar 12 21:20:28 ac100 kernel: [ 118.477944] dd60: c013037c c035fd18 c095c560 00000000 db86dd94 db86dd80 c012c3d8 c01302f8 Mar 12 21:20:28 ac100 kernel: [ 118.486171] dd80: 0000183f 00000000 db86ddc4 db86dd98 c012c9c8 c012c3a0 b6f4e000 db2f5498 Mar 12 21:20:28 ac100 kernel: [ 118.494399] dda0: 000200da 0000183f b6f4e000 db2f4d40 00000000 00000000 db86ddf4 db86ddc8 Mar 12 21:20:28 ac100 kernel: [ 118.502628] ddc0: c012cab0 c012c90c c0699498 db2f4d40 db2f4d40 db2b4000 db2f5498 b6f4e000 Mar 12 21:20:28 ac100 kernel: [ 118.510857] dde0: 00000000 00307e00 db86de44 db86ddf8 c011ff20 c012ca28 00000000 c00d5918 Mar 12 21:20:28 ac100 kernel: [ 118.519086] de00: c05d0020 db3ec580 db2f4d74 db2f4d74 0000184e 0000183f db86de34 b6f4e000 Mar 12 21:20:28 ac100 kernel: [ 118.527316] de20: db2b4000 000005b7 db2b6db8 db2f4d40 db2f5498 00000000 db86de7c db86de48 Mar 12 21:20:28 ac100 kernel: [ 118.535544] de40: c01203a8 c011fc38 db2b6db8 00000000 c025bf1c db2f5498 db86dfb0 db857a80 Mar 12 21:20:28 ac100 kernel: [ 118.543774] de60: b6f4e670 db2f4d40 db2f4d78 00000017 db86df04 db86de80 c005f114 c01202fc Mar 12 21:20:28 ac100 kernel: [ 118.552001] de80: db86df70 00000000 00000000 db86df58 db86df3c db86dea0 c01356b0 c013e99c Mar 12 21:20:28 ac100 kernel: [ 118.560223] dea0: 00000000 00000000 00000000 00000000 00000000 00000000 001a2000 00000000 Mar 12 21:20:28 ac100 kernel: [ 118.568449] dec0: 05802400 00000000 00001198 00000000 00004ccd 00000000 0091aee5 00000017 Mar 12 21:20:28 ac100 kernel: [ 118.576678] dee0: c05e4dec b6f4e670 db86dfb0 00000001 b6f4b988 bec64998 db86dfac db86df08 Mar 12 21:20:28 ac100 kernel: [ 118.584909] df00: c004e170 c005f028 db86df58 db857a80 db86df54 db86df20 c0089b14 c00a5f18 Mar 12 21:20:28 ac100 kernel: [ 118.593134] df20: bec64c24 00000001 00000001 bec649d0 00000000 00000003 00000000 c008aa50 Mar 12 21:20:28 ac100 kernel: [ 118.601362] df40: 00000000 bec649d0 db86dfa4 db86df58 c008aa50 c00a2394 00000003 0000000f Mar 12 21:20:28 ac100 kernel: [ 118.609590] df60: 00000000 bec649d0 00000000 00000000 00000000 db857a80 c0088748 00100100 Mar 12 21:20:28 ac100 kernel: [ 118.617817] df80: 00200200 00000000 00000000 0000000f ffffffff b6f4c8e8 b6f806ac b6f4b9c0 Mar 12 21:20:28 ac100 kernel: [ 118.626044] dfa0: 00000000 db86dfb0 c0053d64 c004e138 b6f4cf68 b6f4e658 00000001 b6f4cee8 Mar 12 21:20:28 ac100 kernel: [ 118.634273] dfc0: 00000011 b6f4c8e8 b6f806ac b6f4b9c0 00000001 b6f4b988 bec64998 00000011 Mar 12 21:20:28 ac100 kernel: [ 118.642503] dfe0: b6f4cf68 bec64948 b6f2fc07 b6f2fc66 200f0030 ffffffff 86950214 104188c8 Mar 12 21:20:28 ac100 kernel: [ 118.650758] [<c00576bc>] (__bug+0x2c/0x38) from [<c035ed80>] (zcache_pampd_get_data+0x6c/0x14c) Mar 12 21:20:28 ac100 kernel: [ 118.659532] [<c035ed80>] (zcache_pampd_get_data+0x6c/0x14c) from [<c0361028>] (tmem_get+0x160/0x19c) Mar 12 21:20:28 ac100 kernel: [ 118.668733] [<c0361028>] (tmem_get+0x160/0x19c) from [<c035fc98>] (zcache_get_page.constprop.16+0x8c/0xa8) Mar 12 21:20:28 ac100 kernel: [ 118.678449] [<c035fc98>] (zcache_get_page.constprop.16+0x8c/0xa8) from [<c035fd9c>] (zcache_frontswap_get_page+0x90/0xa0) Mar 12 21:20:28 ac100 kernel: [ 118.689483] [<c035fd9c>] (zcache_frontswap_get_page+0x90/0xa0) from [<c013037c>] (__frontswap_get_page+0x90/0xd8) Mar 12 21:20:28 ac100 kernel: [ 118.699814] [<c013037c>] (__frontswap_get_page+0x90/0xd8) from [<c012c3d8>] (swap_readpage+0x44/0xdc) Mar 12 21:20:28 ac100 kernel: [ 118.709100] [<c012c3d8>] (swap_readpage+0x44/0xdc) from [<c012c9c8>] (read_swap_cache_async+0xc8/0x11c) Mar 12 21:20:28 ac100 kernel: [ 118.718560] [<c012c9c8>] (read_swap_cache_async+0xc8/0x11c) from [<c012cab0>] (swapin_readahead+0x94/0x9c) Mar 12 21:20:28 ac100 kernel: [ 118.728282] [<c012cab0>] (swapin_readahead+0x94/0x9c) from [<c011ff20>] (handle_pte_fault+0x2f4/0x6c4) Mar 12 21:20:28 ac100 kernel: [ 118.737654] [<c011ff20>] (handle_pte_fault+0x2f4/0x6c4) from [<c01203a8>] (handle_mm_fault+0xb8/0xd0) Mar 12 21:20:28 ac100 kernel: [ 118.746939] [<c01203a8>] (handle_mm_fault+0xb8/0xd0) from [<c005f114>] (do_page_fault+0xf8/0x28c) Mar 12 21:20:28 ac100 kernel: [ 118.755884] [<c005f114>] (do_page_fault+0xf8/0x28c) from [<c004e170>] (do_DataAbort+0x44/0xa8) Mar 12 21:20:28 ac100 kernel: [ 118.764574] [<c004e170>] (do_DataAbort+0x44/0xa8) from [<c0053d64>] (ret_from_exception+0x0/0x10) Mar 12 21:20:28 ac100 kernel: [ 118.773481] Exception stack(0xdb86dfb0 to 0xdb86dff8) Mar 12 21:20:28 ac100 kernel: [ 118.778571] dfa0: b6f4cf68 b6f4e658 00000001 b6f4cee8 Mar 12 21:20:28 ac100 kernel: [ 118.786802] dfc0: 00000011 b6f4c8e8 b6f806ac b6f4b9c0 00000001 b6f4b988 bec64998 00000011 Mar 12 21:20:28 ac100 kernel: [ 118.795026] dfe0: b6f4cf68 bec64948 b6f2fc07 b6f2fc66 200f0030 ffffffff Mar 12 21:20:28 ac100 kernel: [ 118.801690] Code: e59f0010 e1a01003 eb0fb47d e3a03000 (e5833000) Mar 12 21:20:28 ac100 kernel: [ 118.808264] ---[ end trace 3a9bf99eb36a0d78 ]--- Mar 12 21:20:28 ac100 kernel: [ 118.826844] ------------[ cut here ]------------ Mar 12 21:20:28 ac100 kernel: [ 118.831491] WARNING: at /home/marc/ac100/marvin24s-kernel/drivers/staging/zcache/zcache-main.c:732 zcache_pampd_free+0x90/0x14c() Mar 12 21:20:28 ac100 kernel: [ 118.843128] Modules linked in: nls_iso8859_1 nls_cp437 vfat fat fuse zram(C) snd_soc_alc5632 snd_seq_dummy rt2800usb rt2800lib rt2x00usb rt2x00lib snd_soc_tegra_alc5632 mac80211 snd_seq_oss snd_soc_tegra_pcm snd_soc_tegra_i2s snd_seq_midi_event snd_soc_tegra_das snd_soc_core snd_pcm_oss snd_mixer_oss uvcvideo videodev cfg80211 tegra_wdt snd_seq cdc_ether usbnet snd_pcm cdc_wdm cdc_acm mii snd_seq_device lm90 snd_timer snd soundcore snd_page_alloc snd_soc_tegra_utils Mar 12 21:20:28 ac100 kernel: [ 118.884648] [<c005acac>] (unwind_backtrace+0x0/0xec) from [<c0444314>] (dump_stack+0x20/0x24) Mar 12 21:20:28 ac100 kernel: [ 118.893177] [<c0444314>] (dump_stack+0x20/0x24) from [<c00860bc>] (warn_slowpath_common+0x5c/0x74) Mar 12 21:20:28 ac100 kernel: [ 118.902131] [<c00860bc>] (warn_slowpath_common+0x5c/0x74) from [<c0086100>] (warn_slowpath_null+0x2c/0x34) Mar 12 21:20:28 ac100 kernel: [ 118.911784] [<c0086100>] (warn_slowpath_null+0x2c/0x34) from [<c035ea90>] (zcache_pampd_free+0x90/0x14c) Mar 12 21:20:28 ac100 kernel: [ 118.921259] [<c035ea90>] (zcache_pampd_free+0x90/0x14c) from [<c03610f0>] (tmem_flush_page+0x8c/0xe8) Mar 12 21:20:28 ac100 kernel: [ 118.930470] [<c03610f0>] (tmem_flush_page+0x8c/0xe8) from [<c035fe18>] (zcache_flush_page.constprop.17+0x6c/0x9c) Mar 12 21:20:28 ac100 kernel: [ 118.940720] [<c035fe18>] (zcache_flush_page.constprop.17+0x6c/0x9c) from [<c035ff0c>] (zcache_frontswap_flush_page+0x70/0x7c) Mar 12 21:20:28 ac100 kernel: [ 118.952020] [<c035ff0c>] (zcache_frontswap_flush_page+0x70/0x7c) from [<c0130440>] (__frontswap_invalidate_page+0x7c/0xe4) Mar 12 21:20:28 ac100 kernel: [ 118.963055] [<c0130440>] (__frontswap_invalidate_page+0x7c/0xe4) from [<c012d38c>] (swap_entry_free+0x11c/0x158) Mar 12 21:20:28 ac100 kernel: [ 118.973220] [<c012d38c>] (swap_entry_free+0x11c/0x158) from [<c012ed70>] (free_swap_and_cache+0x30/0xfc) Mar 12 21:20:28 ac100 kernel: [ 118.982695] [<c012ed70>] (free_swap_and_cache+0x30/0xfc) from [<c011f02c>] (unmap_vmas+0x3b4/0x5ac) Mar 12 21:20:28 ac100 kernel: [ 118.991736] [<c011f02c>] (unmap_vmas+0x3b4/0x5ac) from [<c0123614>] (exit_mmap+0x13c/0x254) Mar 12 21:20:28 ac100 kernel: [ 119.000081] [<c0123614>] (exit_mmap+0x13c/0x254) from [<c0083b38>] (mmput+0x54/0x11c) Mar 12 21:20:28 ac100 kernel: [ 119.007908] [<c0083b38>] (mmput+0x54/0x11c) from [<c0088488>] (exit_mm+0x16c/0x178) Mar 12 21:20:28 ac100 kernel: [ 119.015573] [<c0088488>] (exit_mm+0x16c/0x178) from [<c008a088>] (do_exit+0x218/0x710) Mar 12 21:20:28 ac100 kernel: [ 119.023489] [<c008a088>] (do_exit+0x218/0x710) from [<c0057c8c>] (die+0x2e0/0x338) Mar 12 21:20:28 ac100 kernel: [ 119.031057] [<c0057c8c>] (die+0x2e0/0x338) from [<c04443bc>] (__do_kernel_fault.part.3+0x64/0x84) Mar 12 21:20:28 ac100 kernel: [ 119.039925] [<c04443bc>] (__do_kernel_fault.part.3+0x64/0x84) from [<c005f28c>] (do_page_fault+0x270/0x28c) Mar 12 21:20:28 ac100 kernel: [ 119.049656] [<c005f28c>] (do_page_fault+0x270/0x28c) from [<c005f364>] (do_translation_fault+0x2c/0xb0) Mar 12 21:20:28 ac100 kernel: [ 119.059046] [<c005f364>] (do_translation_fault+0x2c/0xb0) from [<c004e170>] (do_DataAbort+0x44/0xa8) Mar 12 21:20:28 ac100 kernel: [ 119.068175] [<c004e170>] (do_DataAbort+0x44/0xa8) from [<c005392c>] (__dabt_svc+0x4c/0x60) Mar 12 21:20:28 ac100 kernel: [ 119.076427] Exception stack(0xdb86dc08 to 0xdb86dc50) Mar 12 21:20:28 ac100 kernel: [ 119.081470] dc00: 0000006f 00000001 271aed0f 00000000 c06a8304 d572b000 Mar 12 21:20:28 ac100 kernel: [ 119.089637] dc20: 0ca61001 ffffffea 00000018 00000000 00000001 db86dc5c db86db68 db86dc50 Mar 12 21:20:28 ac100 kernel: [ 119.097800] dc40: c0086c70 c00576bc 600f0193 ffffffff Mar 12 21:20:28 ac100 kernel: [ 119.102849] [<c005392c>] (__dabt_svc+0x4c/0x60) from [<c00576bc>] (__bug+0x2c/0x38) Mar 12 21:20:28 ac100 kernel: [ 119.110498] [<c00576bc>] (__bug+0x2c/0x38) from [<c035ed80>] (zcache_pampd_get_data+0x6c/0x14c) Mar 12 21:20:28 ac100 kernel: [ 119.119189] [<c035ed80>] (zcache_pampd_get_data+0x6c/0x14c) from [<c0361028>] (tmem_get+0x160/0x19c) Mar 12 21:20:28 ac100 kernel: [ 119.128313] [<c0361028>] (tmem_get+0x160/0x19c) from [<c035fc98>] (zcache_get_page.constprop.16+0x8c/0xa8) Mar 12 21:20:28 ac100 kernel: [ 119.137957] [<c035fc98>] (zcache_get_page.constprop.16+0x8c/0xa8) from [<c035fd9c>] (zcache_frontswap_get_page+0x90/0xa0) Mar 12 21:20:28 ac100 kernel: [ 119.148904] [<c035fd9c>] (zcache_frontswap_get_page+0x90/0xa0) from [<c013037c>] (__frontswap_get_page+0x90/0xd8) Mar 12 21:20:28 ac100 kernel: [ 119.159156] [<c013037c>] (__frontswap_get_page+0x90/0xd8) from [<c012c3d8>] (swap_readpage+0x44/0xdc) Mar 12 21:20:28 ac100 kernel: [ 119.168368] [<c012c3d8>] (swap_readpage+0x44/0xdc) from [<c012c9c8>] (read_swap_cache_async+0xc8/0x11c) Mar 12 21:20:28 ac100 kernel: [ 119.177753] [<c012c9c8>] (read_swap_cache_async+0xc8/0x11c) from [<c012cab0>] (swapin_readahead+0x94/0x9c) Mar 12 21:20:28 ac100 kernel: [ 119.187398] [<c012cab0>] (swapin_readahead+0x94/0x9c) from [<c011ff20>] (handle_pte_fault+0x2f4/0x6c4) Mar 12 21:20:28 ac100 kernel: [ 119.196696] [<c011ff20>] (handle_pte_fault+0x2f4/0x6c4) from [<c01203a8>] (handle_mm_fault+0xb8/0xd0) Mar 12 21:20:28 ac100 kernel: [ 119.205905] [<c01203a8>] (handle_mm_fault+0xb8/0xd0) from [<c005f114>] (do_page_fault+0xf8/0x28c) Mar 12 21:20:28 ac100 kernel: [ 119.214769] [<c005f114>] (do_page_fault+0xf8/0x28c) from [<c004e170>] (do_DataAbort+0x44/0xa8) Mar 12 21:20:28 ac100 kernel: [ 119.223375] [<c004e170>] (do_DataAbort+0x44/0xa8) from [<c0053d64>] (ret_from_exception+0x0/0x10) Mar 12 21:20:28 ac100 kernel: [ 119.232231] Exception stack(0xdb86dfb0 to 0xdb86dff8) Mar 12 21:20:28 ac100 kernel: [ 119.237273] dfa0: b6f4cf68 b6f4e658 00000001 b6f4cee8 Mar 12 21:20:28 ac100 kernel: [ 119.245441] dfc0: 00000011 b6f4c8e8 b6f806ac b6f4b9c0 00000001 b6f4b988 bec64998 00000011 Mar 12 21:20:28 ac100 kernel: [ 119.253606] dfe0: b6f4cf68 bec64948 b6f2fc07 b6f2fc66 200f0030 ffffffff Mar 12 21:20:28 ac100 kernel: [ 119.260209] ---[ end trace 3a9bf99eb36a0d79 ]--- Mar 12 21:20:28 ac100 kernel: [ 119.264943] ------------[ cut here ]------------ Mar 12 21:20:29 ac100 kernel: [ 119.269578] WARNING: at /home/marc/ac100/marvin24s-kernel/drivers/staging/zcache/zcache-main.c:732 zcache_pampd_free+0x90/0x14c() Mar 12 21:20:29 ac100 kernel: [ 119.281213] Modules linked in: nls_iso8859_1 nls_cp437 vfat fat fuse zram(C) snd_soc_alc5632 snd_seq_dummy rt2800usb rt2800lib rt2x00usb rt2x00lib snd_soc_tegra_alc5632 mac80211 snd_seq_oss snd_soc_tegra_pcm snd_soc_tegra_i2s snd_seq_midi_event snd_soc_tegra_das snd_soc_core snd_pcm_oss snd_mixer_oss uvcvideo videodev cfg80211 tegra_wdt snd_seq cdc_ether usbnet snd_pcm cdc_wdm cdc_acm mii snd_seq_device lm90 snd_timer snd soundcore snd_page_alloc snd_soc_tegra_utils Mar 12 21:20:29 ac100 kernel: [ 119.322726] [<c005acac>] (unwind_backtrace+0x0/0xec) from [<c0444314>] (dump_stack+0x20/0x24) Mar 12 21:20:29 ac100 kernel: [ 119.331253] [<c0444314>] (dump_stack+0x20/0x24) from [<c00860bc>] (warn_slowpath_common+0x5c/0x74) Mar 12 21:20:29 ac100 kernel: [ 119.340205] [<c00860bc>] (warn_slowpath_common+0x5c/0x74) from [<c0086100>] (warn_slowpath_null+0x2c/0x34) Mar 12 21:20:29 ac100 kernel: [ 119.349855] [<c0086100>] (warn_slowpath_null+0x2c/0x34) from [<c035ea90>] (zcache_pampd_free+0x90/0x14c) Mar 12 21:20:29 ac100 kernel: [ 119.359329] [<c035ea90>] (zcache_pampd_free+0x90/0x14c) from [<c03610f0>] (tmem_flush_page+0x8c/0xe8) Mar 12 21:20:29 ac100 kernel: [ 119.368540] [<c03610f0>] (tmem_flush_page+0x8c/0xe8) from [<c035fe18>] (zcache_flush_page.constprop.17+0x6c/0x9c) Mar 12 21:20:29 ac100 kernel: [ 119.378794] [<c035fe18>] (zcache_flush_page.constprop.17+0x6c/0x9c) from [<c035ff0c>] (zcache_frontswap_flush_page+0x70/0x7c) Mar 12 21:20:29 ac100 kernel: [ 119.390096] [<c035ff0c>] (zcache_frontswap_flush_page+0x70/0x7c) from [<c0130440>] (__frontswap_invalidate_page+0x7c/0xe4) Mar 12 21:20:29 ac100 kernel: [ 119.401133] [<c0130440>] (__frontswap_invalidate_page+0x7c/0xe4) from [<c012d38c>] (swap_entry_free+0x11c/0x158) Mar 12 21:20:29 ac100 kernel: [ 119.411300] [<c012d38c>] (swap_entry_free+0x11c/0x158) from [<c012ed70>] (free_swap_and_cache+0x30/0xfc) Mar 12 21:20:29 ac100 kernel: [ 119.420774] [<c012ed70>] (free_swap_and_cache+0x30/0xfc) from [<c011f02c>] (unmap_vmas+0x3b4/0x5ac) Mar 12 21:20:29 ac100 kernel: [ 119.429815] [<c011f02c>] (unmap_vmas+0x3b4/0x5ac) from [<c0123614>] (exit_mmap+0x13c/0x254) Mar 12 21:20:29 ac100 kernel: [ 119.438161] [<c0123614>] (exit_mmap+0x13c/0x254) from [<c0083b38>] (mmput+0x54/0x11c) Mar 12 21:20:29 ac100 kernel: [ 119.445987] [<c0083b38>] (mmput+0x54/0x11c) from [<c0088488>] (exit_mm+0x16c/0x178) Mar 12 21:20:29 ac100 kernel: [ 119.453638] [<c0088488>] (exit_mm+0x16c/0x178) from [<c008a088>] (do_exit+0x218/0x710) Mar 12 21:20:29 ac100 kernel: [ 119.461549] [<c008a088>] (do_exit+0x218/0x710) from [<c0057c8c>] (die+0x2e0/0x338) Mar 12 21:20:29 ac100 kernel: [ 119.469113] [<c0057c8c>] (die+0x2e0/0x338) from [<c04443bc>] (__do_kernel_fault.part.3+0x64/0x84) Mar 12 21:20:29 ac100 kernel: [ 119.477982] [<c04443bc>] (__do_kernel_fault.part.3+0x64/0x84) from [<c005f28c>] (do_page_fault+0x270/0x28c) Mar 12 21:20:29 ac100 kernel: [ 119.487715] [<c005f28c>] (do_page_fault+0x270/0x28c) from [<c005f364>] (do_translation_fault+0x2c/0xb0) Mar 12 21:20:29 ac100 kernel: [ 119.497105] [<c005f364>] (do_translation_fault+0x2c/0xb0) from [<c004e170>] (do_DataAbort+0x44/0xa8) Mar 12 21:20:29 ac100 kernel: [ 119.506236] [<c004e170>] (do_DataAbort+0x44/0xa8) from [<c005392c>] (__dabt_svc+0x4c/0x60) Mar 12 21:20:29 ac100 kernel: [ 119.514486] Exception stack(0xdb86dc08 to 0xdb86dc50) Mar 12 21:20:29 ac100 kernel: [ 119.519530] dc00: 0000006f 00000001 271aed0f 00000000 c06a8304 d572b000 Mar 12 21:20:29 ac100 kernel: [ 119.527698] dc20: 0ca61001 ffffffea 00000018 00000000 00000001 db86dc5c db86db68 db86dc50 Mar 12 21:20:29 ac100 kernel: [ 119.535862] dc40: c0086c70 c00576bc 600f0193 ffffffff Mar 12 21:20:29 ac100 kernel: [ 119.540910] [<c005392c>] (__dabt_svc+0x4c/0x60) from [<c00576bc>] (__bug+0x2c/0x38) Mar 12 21:20:29 ac100 kernel: [ 119.548560] [<c00576bc>] (__bug+0x2c/0x38) from [<c035ed80>] (zcache_pampd_get_data+0x6c/0x14c) Mar 12 21:20:29 ac100 kernel: [ 119.557251] [<c035ed80>] (zcache_pampd_get_data+0x6c/0x14c) from [<c0361028>] (tmem_get+0x160/0x19c) Mar 12 21:20:29 ac100 kernel: [ 119.566375] [<c0361028>] (tmem_get+0x160/0x19c) from [<c035fc98>] (zcache_get_page.constprop.16+0x8c/0xa8) Mar 12 21:20:29 ac100 kernel: [ 119.576018] [<c035fc98>] (zcache_get_page.constprop.16+0x8c/0xa8) from [<c035fd9c>] (zcache_frontswap_get_page+0x90/0xa0) Mar 12 21:20:29 ac100 kernel: [ 119.586964] [<c035fd9c>] (zcache_frontswap_get_page+0x90/0xa0) from [<c013037c>] (__frontswap_get_page+0x90/0xd8) Mar 12 21:20:29 ac100 kernel: [ 119.597216] [<c013037c>] (__frontswap_get_page+0x90/0xd8) from [<c012c3d8>] (swap_readpage+0x44/0xdc) Mar 12 21:20:29 ac100 kernel: [ 119.606427] [<c012c3d8>] (swap_readpage+0x44/0xdc) from [<c012c9c8>] (read_swap_cache_async+0xc8/0x11c) Mar 12 21:20:29 ac100 kernel: [ 119.615812] [<c012c9c8>] (read_swap_cache_async+0xc8/0x11c) from [<c012cab0>] (swapin_readahead+0x94/0x9c) Mar 12 21:20:29 ac100 kernel: [ 119.625457] [<c012cab0>] (swapin_readahead+0x94/0x9c) from [<c011ff20>] (handle_pte_fault+0x2f4/0x6c4) Mar 12 21:20:29 ac100 kernel: [ 119.634755] [<c011ff20>] (handle_pte_fault+0x2f4/0x6c4) from [<c01203a8>] (handle_mm_fault+0xb8/0xd0) Mar 12 21:20:29 ac100 kernel: [ 119.643966] [<c01203a8>] (handle_mm_fault+0xb8/0xd0) from [<c005f114>] (do_page_fault+0xf8/0x28c) Mar 12 21:20:29 ac100 kernel: [ 119.652830] [<c005f114>] (do_page_fault+0xf8/0x28c) from [<c004e170>] (do_DataAbort+0x44/0xa8) Mar 12 21:20:29 ac100 kernel: [ 119.661434] [<c004e170>] (do_DataAbort+0x44/0xa8) from [<c0053d64>] (ret_from_exception+0x0/0x10) Mar 12 21:20:29 ac100 kernel: [ 119.670289] Exception stack(0xdb86dfb0 to 0xdb86dff8) Mar 12 21:20:29 ac100 kernel: [ 119.675331] dfa0: b6f4cf68 b6f4e658 00000001 b6f4cee8 Mar 12 21:20:29 ac100 kernel: [ 119.683497] dfc0: 00000011 b6f4c8e8 b6f806ac b6f4b9c0 00000001 b6f4b988 bec64998 00000011 Mar 12 21:20:29 ac100 kernel: [ 119.691661] dfe0: b6f4cf68 bec64948 b6f2fc07 b6f2fc66 200f0030 ffffffff Mar 12 21:20:29 ac100 kernel: [ 119.698262] ---[ end trace 3a9bf99eb36a0d7a ]--- It's possible that the 3.0 doesn't like the driver from linux-next, but maybe you have some other idea. Thanks! Marc -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
