W dniu 31 stycznia 2010 12:27 użytkownik Rafał Miłecki
<zaj...@gmail.com> napisał:
> I need to call MemoryRefreshConversion which is:
>
> Size 0069
> Format Rev. 01
> Param Rev. 00
> Content Rev. 01
> Attributes: Work space size 01 longs
> Parameter space size 00 longs
> Table update indicator 0
>
> How can I do this?
>
>
> Following code:
> index = GetIndexIntoMasterTable(COMMAND, MemoryRefreshConversion);
> DRM_INFO("[DBG] MemoryRefreshConversion\n");
> atom_execute_table(rdev->mode_info.atom_context, index, NULL);
>
> Caused:
> [ 31.022649] [drm] [DBG] MemoryRefreshConversion
> [ 31.022700] BUG: unable to handle kernel NULL pointer dereference at (null)
> [ 31.022719] IP: [<fc28c5e1>] atom_put_dst+0x171/0x510 [radeon]
> [ 31.022770] *pde = 00000000
> [ 31.022780] Oops: 0002 [#1] PREEMPT SMP
> [ 31.022793] last sysfs file:
> /sys/devices/pci0000:00/0000:00:1c.3/0000:06:00.0/ieee80211/phy0/rfkill2/state
> [ 31.022809] Modules linked in: af_packet ip6t_LOG xt_tcpudp
> xt_pkttype xt_physdev ipt_LOG xt_limit rfcomm sco bridge stp
> snd_pcm_oss snd_mixer_oss llc bnep snd_seq l2cap snd_seq_device edd
> ip6t_REJECT nf_conntrack_ipv6 ip6table_raw xt_NOTRACK ipt_REJECT
> xt_state iptable_raw iptable_filter ip6table_mangle
> nf_conntrack_netbios_ns cpufreq_conservative nf_conntrack_ipv4
> cpufreq_userspace nf_conntrack cpufreq_powersave nf_defrag_ipv4
> ip_tables acpi_cpufreq ip6table_filter ip6_tables x_tables fuse loop
> dm_mod arc4 ecb cryptomgr crypto_hash aead pcompress
> snd_hda_codec_atihdmi radeon crypto_blkcipher snd_hda_codec_realtek
> ttm snd_hda_intel crypto_algapi drm_kms_helper snd_hda_codec iwlagn
> snd_hwdep drm iwlcore snd_pcm sdhci_pci i2c_algo_bit mac80211
> snd_timer uvcvideo sdhci ohci1394 cfbcopyarea sr_mod snd btusb
> videodev iTCO_wdt cfg80211 cfbimgblt sony_laptop video bluetooth
> snd_page_alloc mmc_core v4l1_compat ieee1394 serio_raw
> iTCO_vendor_support intel_agp i2c_i801 cfbfillrect sky2 pcspkr sg
> backlight rfkill joydev cdrom button battery ac ext4 jbd2 fan
> processor thermal thermal_sys
> [ 31.023104]
> [ 31.023113] Pid: 2234, comm: cat Not tainted (2.6.32-kms #38) VGN-FW11S
> [ 31.023126] EIP: 0060:[<fc28c5e1>] EFLAGS: 00010246 CPU: 1
> [ 31.023138] EIP is at atom_put_dst+0x171/0x510 [radeon]
> [ 31.023138] EAX: 00000000 EBX: 00000000 ECX: 0000e263 EDX: f65f3df8
> [ 31.023138] ESI: 00007404 EDI: 00000000 EBP: f65f3d90 ESP: f65f3d64
> [ 31.023138] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
> [ 31.023138] Process cat (pid: 2234, ti=f65f2000 task=f64931b0
> task.ti=f65f2000)
> [ 31.023138] Stack:
> [ 31.023138] 00000041 00000000 00000040 00000040 00007404 00000000
> f65f3df8 ffffffff
> [ 31.023138] <0> 00007404 f65f3df8 00000002 f65f3dbc fc28e29a
> f65f3da8 00007404 cdcdcdcd
> [ 31.023138] <0> 00000001 0000e264 cdcdcdcd 00000002 00000002
> f69c5a40 f65f3e1c fc28e4ac
> [ 31.023138] Call Trace:
> [ 31.023138] [<fc28e29a>] ? atom_op_move+0xaa/0x170 [radeon]
> [ 31.023138] [<fc28e4ac>] ? atom_execute_table_locked+0xbc/0x220 [radeon]
> [ 31.023138] [<c11ac298>] ? vsnprintf+0xc8/0x410
> [ 31.023138] [<c1023912>] ? default_spin_lock_flags+0x12/0x20
> [ 31.023138] [<c13b6a00>] ? _read_lock_irqsave+0x20/0x50
> [ 31.023138] [<fc28e65b>] ? atom_op_calltable+0x4b/0xf0 [radeon]
> [ 31.023138] [<fc28e4ac>] ? atom_execute_table_locked+0xbc/0x220 [radeon]
> [ 31.023138] [<c11ae990>] ? bitmap_ord_to_pos+0x40/0x60
> [ 31.023138] [<fc28e740>] ? atom_execute_table+0x40/0x60 [radeon]
Uf, OK, I see we need to handle all parameters in PS_ALLOCATION
(param-space I guess). That include also parameters we use deeper, in
subcalls.
--
Rafał
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